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Not many people were expecting the HD6870 X2 when it was initially announced. Powercolor have been one of the key players behind the launch and we highlighted some pictures from Computex a while ago. Today we are looking at the VTX3D version of the card. For those of you who haven't yet heard, Vertex3D are the ‘price aggressive' brand from TUL Corporation, the parent company of Powercolor.
The HD6870X2 has 2240 stream processing units and 4.03 teraflops of computing power, with a core clock of 900mhz and GDDR5 memory set at 1050mhz. The card uses high end Heat Pipe Direct Touch (HDT) Technology, with 6 pieces of flattened heat pipes which directly cover the GPU. They claim 50 times better heat dissipation than a copper base.
| HD6870 X2 | |
| Core Speed | 900mhz |
| Memory Speed | 1050 mhz (4.2Gbps) |
| Memory bandwidth | 256bit x2 |
| Eyefinity support | yes |
| Direct X 11 support | yes |
| CrossfireX | yes |
| Output | DL-DVI-I / SL-DVI-D/ HDMI/2 x mini Display Port |
| Game Bundle | Dirt 3 |
No, you aren't seeing double. Ruby and her sister are on the front of the box, giving an early indication that ‘two is better than one'.
The bundle includes an installation guide, driver disc (our review sample didn't have a branded disc), Crossfire cable, power converters, display converter and Dirt 3 activation key for Steam.
This is a monster card, which is supplied with a heavy duty plastic cooler and dual fan configuration. It is built on a ‘traditional' ATI (are we allowed to say that now?) PCB.
The heatpipe based cooling system is formidable. The heat pipes are some of the biggest we have seen on a video card and are split into two arrays, to help dissipate heat from both cores on either side of the PCB. The design is very attractive and we love the appearance from the top down.
The HD6870X2 demands two 8 pin PCI power connectors to operate properly. This is the same as some of the high end GTX580's we have reviewed in recent months.
The card is CrossfireX capable if you have a power supply strong enough to handle the +12V demand. VTX3D supply a Crossfire cable with each card which is very useful.
The card is equipped with 2GB of Elpida GDDR5 memory (H10328ABG).
Removing the cooler is a straightforward process although there is twice as much work as normal, with 8 screws to remove. The Lucid chip sits in between both HD6870 cores. The PCB is a 13 phase PWM design with ferrite Core Choke and DrMos to help provide stability under full load situations. The cooler is a Direct Touch (HDT) design with a total of 6 heatpipes flattened and pressing directly against the cores.
The design incorporates several small heatsinks, positioned under the dual fan airflow to help with cooling performance.
An overview of the hardware in the latest version of GPUZ. Crossfire is enabled by default after the drivers are correctly installed.
To test this high end card today we have built a system with suitable matching components, based around a liquid cooled 12 core (6 physical/6 logical) Intel i7 970 processor overclocked to 4.33ghz with 6GB of GKILL memory running at 1800mhz with tight timings. We will be mixing the resolutions, as we know that less than 1 percent of the audience have access to a 30 inch screen.
Processor: Core i7 970 @ 4.33ghz
Cooling: Coolit Vantage
Motherboard: MSI X58A-GD65 (MS-7522)
Chassis: Thermaltake Level 10
Power Supply: Corsair Ax1200
Memory: 6GB GSkill Performance Gaming ram @ 902.9 MHz (2:10) @ 7-8-7-24
Storage: Kingston SSDNow V+ 512GB Gen 2 SSD (Storage) / Crucial RealSSD C300 256GB (OS boot)
Monitors: Dell U2410 UltraSharp, LaCie 730, Iiyama Prolite E2472HDD x2
Other graphics cards for comparisons:
Nvidia GTX590
Nvidia GTX580
Nvidia GTX570
XFX HD5970 Black Edition 4GB (QuadFireX)
AMD HD6990
AMD HD6970
AMD HD6950
AMD HD6870
AMD HD6850
AMD HD5870
AMD HD5850
MSI N560GTX Ti Twin Frozr II
nVidia GTX570
nVidia GTX460 OC (715/900)
Software:
Windows 7 Ultimate 64 bit
Unigine Heaven Benchmark
3DMark Vantage
3DMark 11
Catalyst 11.6
Fraps Professional
Steam Client
FurMark
HQV 2.0 Software
Technical Monitoring and Test Equipment:
Keithley Integra unit
Thermal Diodes
Raytek Laser Temp Gun 3i LSRC/MT4 Mini Temp
Extech digital sound level meter & SkyTronic DSL 2 Digital Sound Level Meter
Games:
Resident Evil 5
Far Cry 2
Alien V Predator
Lost Planet 2
Tom Clancy HAWX 2
Metro 2033
Dirt 3
STALKER: Clear Sky
Battlefield: Bad Company 2
Dead Space 2
Total War: Shogun 2
All the latest BIOS updates and drivers are used during testing. We perform under real world conditions, meaning KitGuru tests all games across five closely matched runs and average out the results to get an accurate median figure.
Unigine provides an interesting way to test hardware. It can be easily adapted to various projects due to its elaborated software design and flexible toolset. A lot of their customers claim that they have never seen such extremely-effective code, which is so easy to understand.
Heaven Benchmark is a DirectX 11 GPU benchmark based on advanced Unigine engine from Unigine Corp. It reveals the enchanting magic of floating islands with a tiny village hidden in the cloudy skies. Interactive mode provides emerging experience of exploring the intricate world of steampunk.
Efficient and well-architected framework makes Unigine highly scalable:
- Multiple API (DirectX 9 / DirectX 10 / DirectX 11 / OpenGL) render
- Cross-platform: MS Windows (XP, Vista, Windows 7) / Linux
- Full support of 32bit and 64bit systems
- Multicore CPU support
- Little / big endian support (ready for game consoles)
- Powerful C++ API
- Comprehensive performance profiling system
- Flexible XML-based data structures
We use the following settings: 1920×1080 resolution. Anti Aliasing off. Anisotrophy 4, Tessellation normal. Shaders High. Stereo 3D disabled. API: Direct X 11.
We test at 1080p so that all video cards can be compared throughout our reviews. Obviously driver updates might enhance performance slightly over time, but as a rule, its a useful way for us to present the findings.
The VTX3d HD6870 X2 outperforms the last generation XFX HD5970 Black Edition, which at the time cost around £900. It also outperforms the GTX580 by around 3 frames per second. Off to a very positive start indeed.
Futuremark released 3DMark Vantage, on April 28, 2008. It is a benchmark based upon DirectX 10, and therefore will only run under Windows Vista (Service Pack 1 is stated as a requirement) and Windows 7. This is the first edition where the feature-restricted, free of charge version could not be used any number of times. 1280×1024 resolution was used with performance settings.
A score of almost 30,000 points is certainly not to be sniffed at. This is around 4000 points more than a GTX580 in the same system.
3DMark 11 is designed for testing DirectX 11 hardware running on Windows 7 and Windows Vista the benchmark includes six all new benchmark tests that make extensive use of all the new features in DirectX 11 including tessellation, compute shaders and multi-threading.
After running the tests 3DMark gives your system a score with larger numbers indicating better performance. Trusted by gamers worldwide to give accurate and unbiased results, 3DMark 11 is the best way to test DirectX 11 under game-like loads.
If you want to learn more about this benchmark, or to buy it yourself, head over to this page.
An overall score of over 8,000 points is around 2,000 points higher than a reference clocked GTX580 at the same settings. The GTX590 scores around 900 points more than the VTX3D HD6870 X2.
HQV Benchmark 2.0 is an updated version of the original tool and it consists of various video clips and test patterns which are designed to evalute motion correction, de-interlacing, decoding, noise reduction, detail enhancement and film cadence detection.
There are two versions of the program, standard definition on DVD and high definition on Bluray. As our audience will be concentrating on HD content so will we.
This has a total of 39 video tests which is increased from 23 in the original and the scoring is also up from a total of 130 to 210. As hardware and software gets more complicated, the software has been tuned to make sure we can thoroughly maximise our analysis.
Read our initial analysis over here
| VTX3D HD6870 X2 |
|
|
Dial
|
4 |
| Dial with static pattern | 5 |
| Gray Bars | 5 |
| Violin | 5 |
| Stadium 2:2 | 5 |
| Stadium 3:2 | 5 |
| Horizontal Text Scroll | 5 |
| Vertical Text Scroll | 5 |
| Transition to 3:2 Lock | 5 |
| Transition to 2:2 Lock | 0 |
|
2:2:2:4 24 FPS DVCAM Video
|
5 |
|
2:3:3:2 24 FPS DVCam Video
|
5 |
|
3:2:3:2:2 24 FOS Vari-Speed
|
5 |
|
5:5 FPS Animation
|
5 |
|
6:4 12 FPS Animation
|
5 |
|
8:7 8 FPS Animation
|
5 |
|
Interlace Chroma Problem (ICP)
|
5 |
|
Chroma Upsampling Error (CUE)
|
5 |
|
Random Noise: Sailboat
|
5 |
|
Random Noise: Flower
|
5 |
|
Random Noise: Sunrise
|
5 |
|
Random Noise: Harbour Night
|
5 |
|
Scrolling Text
|
5 |
|
Roller Coaster
|
5 |
|
Ferris Wheel
|
5 |
|
Bridge Traffic
|
5 |
|
Text Pattern/ Scrolling Text
|
5 |
|
Roller Coaster
|
5 |
|
Ferris Wheel
|
5 |
|
Bridge Traffic
|
5 |
|
Luminance Frequency Bands
|
5 |
|
Chrominance Frequency Bands
|
5 |
| Vanishing Text | 5 |
|
Resolution Enhancement
|
15 |
|
Theme Park
|
5 |
| Driftwood | 5 |
|
Ferris Wheel
|
5 |
|
Skin Tones
|
7 |
| Total | 196 |
A fantastic set of results for VTX3D HD6870 X2 hardware, scoring 196 points out of 210. Class leading right now.
Resident Evil 5, known in Japan as Biohazard 5, is a survival horror third-person shooter video game developed and published by Capcom. The game is the seventh installment in the Resident Evil survival horror series, and was released on March 5, 2009 in Japan and on March 13, 2009 in North America and Europe for the PlayStation 3 and Xbox 360. A Windows version of the game was released on September 15, 2009 in North America, September 17 in Japan and September 18 in Europe. Resident Evil 5 revolves around Chris Redfield and Sheva Alomar as they investigate a terrorist threat in Kijuju, a fictional town in Africa.
Within its first three weeks of release, the game sold over 2 million units worldwide and became the best-selling game of the franchise in the United Kingdom. As of December, 2009, Resident Evil 5 has sold 5.3 million copies worldwide since launch, becoming the best selling Resident Evil game ever made.
A staggering result for the VTX3D HD6870 X2, scoring an average of 178 fps, slightly higher than the AMD HD6990.
Far Cry 2 (commonly abbreviated as “FC2 or “fc2″) is an open-ended first-person shooter developed by Ubisoft Montreal and published by Ubisoft. It was released on October 21, 2008 in North America and on October 23, 2008 in Europe and Australia. It was made available on Steam on October 22, 2008. Crytek, the developers of the original game, were not involved in the development of Far Cry 2.
Ubisoft has marketed Far Cry 2 as the true sequel to Far Cry, though the sequel has very few noticeable similarities to the original game. Instead, it features completely new characters and setting, as well as a new style of gameplay that allows the player greater freedom to explore different African landscapes such as deserts, jungles, and savannas. The game takes place in a modern-day East African nation in a state of anarchy and civil war. The player takes control of a mercenary on a lengthy journey to locate and assassinate “The Jackal,” a notorious arms dealer.
Far Cry 2 is still a popular game and the open world environment can be taxing on even the latest hardware available today.
Settings: 1920×1200, D3D10, Disable Artificial Intelligence(No), Full Screen, Anti-Aliasing(8x), VSync(No), Overall Quality(Ultra High), Vegetation(Very High), Shading(Ultra High), Terrain(Ultra High), Geometry(Ultra High), Post FX(High), Texture(Ultra High), Shadow(Ultra High), Ambient(High), Hdr(Yes), Bloom(Yes), Fire(Very High), Physics(Very High), RealTrees(Very High)
Far Cry 2 has always been a favourable engine for Nvidia hardware and we can see that the VTX3D HD6870 X2 slots in behind the GTX580 in SLI by around 17 fps.
Aliens V Predator has proved to be a big seller since the release and Sega have taken the franchise into new territory after taking it from Sierra. AVP is a Direct X 11 supported title and delivers not only advanced shadow rendering but high quality tessellation for the cards on test today.
To test the cards we used a 1080p resolution with DX11, Texture Quality Very High, MSAA Samples 1, 16 af, ambient occulsion on, shadow complexity high, motion blur on. We use this with most of our graphics card testing so cards are comparible throughout reviews.
Alien V Predator is an intensive Direct X 11 title which is very demanding of the partnering hardware. The VTX3D HD6870 X2 manages to outperform the GTX580 by a significant margin, averaging 86 fps at these settings. We noticed some minor micro-stuttering in specific parts of our testing.
Lost Planet 2 is a third-person shooter video game developed and published by Capcom. The game is the sequel to Lost Planet: Extreme Condition which is also made by Capcom, taking place ten years after the events of the first game, on the same fictional planet. The story takes place back on E.D.N. III 10 years after the events of the first game. The snow has melted to reveal jungles and more tropical areas that have taken the place of more frozen regions. The plot begins with Mercenaries fighting against Jungle Pirates.
After destroying a mine, the Mercenaries continue on to evacuate the area, in which a Category-G Akrid appears and attacks them. After being rescued, they find out their evacuation point (Where the Category-G appeared) was a set-up and no pick up team awaited them. Lost Planet 2 runs on the MT-Framework 2.0, an updated version of the engine used in several Capcom-developed games.
We are testing in DX11 mode with all settings on the highest. Direct X 11 features are on high.
Another intensive Direct X 11 title, especially with 4 AA enabled. The VTX3D HD6870 X2 has no problems powering through the engine however at these settings, achieving an average of 71 fps. This is a couple of frames per second higher than the reference clocked GTX580.
Tom Clancy’s H.A.W.X. 2 is an arcade-style flight action game developed by Ubisoft Romania and published by Ubisoft. After the events of the first game, the H.A.W.X squadron is sent to Middle East, where a high level of violence is being registered, and the appearance of various insurgents leaders in various hotspots. The team also has to investigate the mysterious disappearance of Russian nuclear weapons. The player will be controlling three groups: one American (Hunter), one British (Munro) and one Russian (Sokov), each with its own pilots and supporting characters. There will also be references to other characters in the Tom Clancy universe.
We are testing in full DX11 mode with all settings to maximum.
HAWX 2 is massively slanted towards Nvidia hardware, but the VTX3D HD6870 X2 has no problems coming out near the top … although significantly behind the GTX580 in sli.
Dead Space 2 is a survival horror third-person shooter. The player controls Isaac Clarke from a third-person point of view, looking over the character’s right shoulder. The game features no HUD elements, relying on holograms projected from the player character and his weapons to show information such as messages and ammunition count, respectively. Player health and stasis is shown by a visual indicators located on Isaac’s back. Isaac must fight an alien organism that infects and takes control of human corpses, turning them into “Necromorphs”, mutating their bodies.
Necromorphs must be dismembered as the alien organism controls host bodies via tentacles extending into their limbs. Other, larger types of Necromorphs that cannot be dismembered will often have yellow, glowing pustules, indicating weak spots. Occasionally, when an enemy gets close enough to Isaac, they will grab a hold of him, and the player must repeatedly press a key to fend off the enemy, with failure to do so leading to death of the player character.
We noticed some micro-stuttering with this engine on some of the levels, although it didn't affect most of the testing. This engine is CPU bound at these settings, although we can see that the hardware can easily power the engine.
Dirt 3 is a rallying videogame and the third in the Dirt series of the Colin McRae Rally series, developed and published by Codemasters, although the “Colin McRae” tag has been completely removed from this iteration (having been previously been removed from American versions of previous games in the series).
A close match at these settings, although the GTX580 manages to just outperform the VTX3D HD6870 X2 by 5-6 fps.
Shogun 2 is set in 16th-century feudal Japan, in the aftermath of the Ōnin War. The country is fractured into rival clans led by local warlords, each fighting for control. The player takes on the role of one of these warlords, with the goal of dominating other factions and claiming his rule over Japan. The standard edition of the game will feature a total of eight factions (plus a ninth faction for the tutorial), each with a unique starting position and different political and military strengths.
All settings are pushed to ultra with hardware shadows and SSAO enabled.
The engine certainly runs better on AMD hardware right now, with the VTX3D HD6870 X2 outperforming the GTX590 by 9 fps.
We also used the built in benchmark at both 720p and 1080p settings below. Just so you can directly compare your hardware against this setup.
Metro 2033 is an action-oriented video game with a combination of survival horror and first-person shooter elements. The game is based on the novel Metro 2033 by Russian author Dmitry Glukhovsky. It was developed by 4A Games in Ukraine and released in March 2010 for the Xbox 360 and Microsoft Windows.
The game utilizes multi-platform 4A Engine, running on Xbox 360, PlayStation 3, and Microsoft Windows. There is some contention regarding whether the engine is based on the pre-release X-Ray engine (as claimed by Sergiy Grygorovych, the founder of GSC Game World, as well as users who have seen the 4A Engine SDK screenshots, citing visual similarities, shared resources, and technical evaluation of the pre-release 4A Engine demo conducted at the request of GSC Game World), or whether the engine is an original development (as claimed by 4A Games and Oles’ Shiskovtsov in particular) who claims it would have been impractical to retrofit the X-ray engine with console support). The PC version includes exclusive features such as DirectX 11 support and has been described as “a love letter to PC gamers” because of the developers’ choice “to make the PC version [especially] phenomenal”.
A great result at these settings, averaging almost 50 fps with the frame rate never dropping below 35 fps.
S.T.A.L.K.E.R. Clear Sky is a very eerie game. The Zone is a huge abandoned territory, with twenty-year-old dilapidated buildings, overgrown with forests and anomalous vegetation. It is a territory with deserted surface and underground research facilities, neglected military bases and testing grounds for new technologies. The radioactive land is covered with sores of burned out soil, poisonous fogs, and deadly gravitational anomalies. It is a world of a terrible anthropogenic disaster, and in the center of this hell sit the remains of the Chernobyl Nuclear Power Plant.
The in-game Zone is a reconstruction of the Chernobyl Nuclear Power Plant and the 30-kilometer Exclusion Zone around it. Moving along the storyline, the player will visit such places as the Swamps, the Red Forest, the Limansk city and, of course, the sarcophagus of the Chernobyl Nuclear Power Plant. Many in-game locations have real prototypes.
Another great result for this intensive game, averaging 47 fps, one frame more than the GTX580.
Battlefield: Bad Company 2 (also known as Bad Company 2 or BF: BC2) is a first-person shooter video game developed by the Swedish firm EA Digital Illusions CE and published by Electronic Arts for Microsoft Windows, PlayStation 3, and Xbox 360 systems. It is a part of the Battlefield series and was released worldwide in March 2010.
The game is primarily a squad-level online first person shooter based in a contemporary modern warfare setting. Additionally, the game includes a single player campaign, where the player reassumes the role of Preston Marlowe, the protagonist of the original game. The game’s Frostbite 1.5 engine allows for destructible environments, and multiplayer maps contain a wide selection of vehicles, aircraft and emplacements and allow for five different game modes.
We are testing in full Direct X 11 mode.
Another demanding engine which can bring lesser cards to their knees at these settings. The VTX3D HD6870 X2 comfortably outperforms the GTX580.
We have changed our method of measuring noise levels. We have built a system inside a Lian Li chassis with no case fans and have used a fanless cooler on our CPU. We are using a heatpipe based passive power supply and an Intel SSD to keep noise levels to a minimum. The motherboard is also passively cooled. This gives us a build with completely passive cooling and it means we can measure noise of just the graphics card inside the system when we run looped 3dMark tests. Ambient noise in the room is around 20-25dBa. We measure from a distance of around 1 meter from the chassis and 4 foot from the ground to mirror a real world situation.
Why do this? Well this means we can eliminate secondary noise pollution in the test room and concentrate on only the video card. It also brings us slightly closer to industry standards, such as DIN 45635.
KitGuru noise guide
10dBA – Normal Breathing/Rustling Leaves
20-25dBA – Whisper
30dBA – High Quality Computer fan
40dBA – A Bubbling Brook, or a Refridgerator
50dBA – Normal Conversation
60dBA – Laughter
70dBA – Vacuum Cleaner or Hairdryer
80dBA – City Traffic or a Garbage Disposal
90dBA – Motorcycle or Lawnmower
100dBA – MP3 player at maximum output
110dBA – Orchestra
120dBA – Front row rock concert/Jet Engine
130dBA – Threshold of Pain
140dBA – Military Jet takeoff/Gunshot (close range)
160dBA – Instant Perforation of eardrum
The two fan cooler is generally reasonably quiet, only when loaded does it become audible. Furmark isn't a real world test, but it is interesting to include as it is a theoretical ‘maximum' rated figure.
The tests were performed in a controlled air conditioned room with temperatures maintained at a constant 23c – a comfortable environment for the majority of people reading this.
Idle temperatures were measured after sitting at the desktop for 30 minutes. Load measurements were acquired by playing Crysis Warhead for 30 minutes and measuring the peak temperature. We also have included Furmark results, recording maximum temperatures throughout a 30 minute stress test. All fan settings were left on automatic.
While Furmark is not a real world application, it is interesting to include in reviews as it can overload a graphics card higher than any game currently on the market. In this regard, the Furmark figure is only included as a point of reference, almost a ‘possible future' situation with a yet unreleased game.
A single HD6870 card can run hot, and the VTX3D HD6870 X2 peaks around 85/86c when gaming which is relatively hot. Furmark loads the card to around 100C and we were concerned that if we left it running long that possible damage could be caused. It certainly isn't a cool running board, not by any stretch of the imagination.
To test power consumption today we are using a Keithley Integra unit and we measure power consumption from the VGA card inputs, not the system wide drain. We measure results while gaming in Crysis Warhead and record the results.
At idle, the card consumes around 36 watts and when gaming this rises to 255 Watts.
After we documented 100C with Furmark under load, we were unsure if we should attempt any overclocking, this card runs hot, even when gaming.
We managed to get the cores of each GPU to 965mhz and the memory to 1105 mhz which translates to a 7.2% and 5.2% overclock respectively. To be perfectly honest, we wouldn't overclock this card, or recommend that anyone does, as temperatures when gaming rose from 85/86c to 92/93c under load.
There is no doubt that the VTX3D HD6870 X2 is an impressive piece of engineering. If you asked me months ago if this was practical with a ‘standard air cooler', I would have said no. After testing the card I am left with both positive and negative feelings.
Lets get straight to the point, the card is clearly a hell of a performer. It can easily keep up with the GTX580, frequently outperforming it with specific game engines. Using 3DMark 11 as a guideline for Direct X 11 capabilities, it scores 2,000 points more than the GTX580, with a final score over 8,000 points. Sure, you can't play 3Dmark, but the results are mirrored with some of our real world game analysis. Negatively, we noticed some slight micro-stuttering with some game engines, which we hope can be dialed out with driver updates over the coming months. On a more positive note the bundle includes the excellent Dirt 3, which immediately earns a bonus point.
The card is relatively quiet when it is idle, but the fans spin up quite fast to keep the temperatures in check. Under full load, it is easily heard, even within a enthusiast case with multiple fans spinning.
My biggest concern is the thermal situation. On paper, and in the pictures, the cooler looks fantastic, and there is no doubt it is. The problem is that the HD6870's are hot running GPU cores, which can cause a problem for many cooling solutions, even in single configuration. We can see that TUL Corporation, the parent company of both Powercolor and VTX3D have spent a lot of time researching and enhancing the cooler to cope. In theory it does, but we don't often have to quit Furmark for fear of possible damage. Generally if I see 100C in Furmark I have concerns, even if it isn't a ‘real world' indication of how a game will load the card.
When gaming, the card ticks along between 80c and 86c, which is acceptable and certainly not dangerous, but I have a niggling doubt in my mind that the cooler may have problems in specific environments, especially in a warm climate and in a case with limited airflow. It is worth bearing in mind that we were testing in almost perfect conditions, within an air conditioned room.
Pricing has yet to be confirmed but we would assume that the card will retail in the UK somewhere between £300 and £350 (US price is around $450). This means it will be less expensive than the GTX580, while having the performance edge. Personally, im not sure I would be happy living with this card 24/7 due to some thermal concerns, long term. If however you want one of the fastest video cards on the market, at a respectable price, then this should be on your shortlist.
UPDATE: Price is confirmed at £345 inc vat @ OCUK.
Pros:
- Extremely fast
- fantastic looking cooler
- Dirt 3 is a good inclusion in the bundle.
- will be priced less than GTX580, and is faster
Cons:
- Can get hot
- Far from silent
- some micro stuttering in a few of the games we tested
Kitguru says: A great piece of engineering, but the cooling required is phenomenal.
