1800x | KitGuru https://www.kitguru.net KitGuru.net - Tech News | Hardware News | Hardware Reviews | IOS | Mobile | Gaming | Graphics Cards Fri, 23 Jun 2017 13:28:36 +0000 en-US hourly 1 https://wordpress.org/?v=6.4.3 https://www.kitguru.net/wp-content/uploads/2021/06/cropped-KITGURU-Light-Background-SQUARE2-32x32.png 1800x | KitGuru https://www.kitguru.net 32 32 Armari Magnetar V25R-RA750G2 (Ryzen 7 1800X/Radeon Pro Duo) Workstation Review https://www.kitguru.net/desktop-pc/james-morris/armari-magnetar-v25r-ra750g2-amd-ryzen-7-1800xpro-duo-workstation-review/ https://www.kitguru.net/desktop-pc/james-morris/armari-magnetar-v25r-ra750g2-amd-ryzen-7-1800xpro-duo-workstation-review/#comments Thu, 22 Jun 2017 07:47:24 +0000 https://www.kitguru.net/?p=336890 When we first got our hands on the AMD Ryzen 7 1800X, we were bowled over by the challenge it poses for Intel's top-end Core i7 processors. Intel may have taken up that challenge with the announcement of the Core i9, but despite this the most astonishing feature of Ryzen 7 still remains – its …

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When we first got our hands on the AMD Ryzen 7 1800X, we were bowled over by the challenge it poses for Intel's top-end Core i7 processors. Intel may have taken up that challenge with the announcement of the Core i9, but despite this the most astonishing feature of Ryzen 7 still remains – its price. The incredibly low cost isn't just interesting for consumers, either. Because Ryzen 7 – and its forthcoming “Threadripper” stable mate – major on how many cores they offer, AMD's new CPUs are extremely interesting for the professional market too. Our first look at the AMD Ryzen 7 in the workstation context comes from top UK integrator Armari, in the shape of the Magnetar V25R-RA750G2.

The V25R-RA750G2 is based on Armari's incredibly dinky V25 chassis, which the company designed itself specifically to pack as much workstation power into the smallest space possible, with a particular emphasis on VR content creation. Certain configurations come with the breakout box and cabling for the HTC Vive, although not the model we are reviewing here. The chassis supports Intel Core i7 up to 10-core and AMD Ryzen 7 up to 1800X, with the latter included in this particular sample.

There's space (and cooling) for either dual single-width graphics or a single dual-width graphics card, and these can be full length too, so cards up to the NVIDIA Quadro P5000 are possible. However, since this V25 specification is intended to be a bit of an AMD showcase, the new version of the Radeon Pro Duo has been included instead. Unlike the original version, the new Radeon Pro Duo doesn't draw so much power that a custom water cooling system is required. But it's still a dual-GPU solution, with effectively two Radeon Pro WX7100 cards packaged together – and each one has a whopping 16GB of GDDR5 memory too.

There's plenty else of interest with the Armari V25R-RA750G2, including the price. So let's find out how the AMD Ryzen 7 1800X stacks up as a professional workstation CPU.

Armari V25R-RA750G2 Specifications:

  • AMD Ryzen 7 1800X @3.6GHz
  • 32GB Corsair Vengeance LPX DDR4 SDRAM @ 2,400MHz
  • Biostar X370GTN Motherboard
  • 512GB Samsung PM961 M.2 NVMe PCI Express SSD
  • 32GB GDDR5 AMD Radeon Pro Duo Graphics
  • Sealed AIO water cooling
  • 750W Platinum Efficiency PSU
  • Custom V25 Pristine White chassis
  • Windows 10 Professional 64-bit
  • 3 Years Warranty Parts and Labour, 1 Year Onsite, 2 Years RTB

Price: £3,118.80 inc VAT & Delivery (Buy from Armari HERE)

Be sure to check out our sponsors store EKWB here

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Your Ryzen 7 CPU won’t be running as hot as you think https://www.kitguru.net/components/cpu/matthew-wilson/your-ryzen-7-cpu-wont-be-running-as-hot-as-you-think/ https://www.kitguru.net/components/cpu/matthew-wilson/your-ryzen-7-cpu-wont-be-running-as-hot-as-you-think/#comments Fri, 17 Mar 2017 13:17:27 +0000 http://www.kitguru.net/?p=325683 If you are currently putting together a Ryzen 7 1800x or 1700x build and are planning your cooling solution based on current reported temperatures from reviews, then you may want to read this before spending a fortune on cooling or chasing down temperature issues. It seems that AMD has incorporated a +20°C temperature offset with …

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If you are currently putting together a Ryzen 7 1800x or 1700x build and are planning your cooling solution based on current reported temperatures from reviews, then you may want to read this before spending a fortune on cooling or chasing down temperature issues. It seems that AMD has incorporated a +20°C temperature offset with these two CPUs and unfortunately didn't make that very clear to reviewers. As a result, you may be seeing very inaccurate readings.

This +20°C temperature offset means that most software will be displaying the offset reading, rather than the actual junction temperature. As a result, AMD is advising that users subtract 20°C from their reported Ryzen 7 1800x and 1700x values to get an accurate reading on the junction temperature.

The reason for this offset in temperature is due to Ryzen's use of a tCTL sensor which is derived from the junction (Tj) temperature—the interface point between the die and heatspreader. It is offset on certain models to ensure all Ryzen 7 CPUs have the same maximum tCTL value and a consistent fan control policy across all three processors.

We have since updated both our Ryzen 7 1800x and 1700x reviews with this information underneath the temperature graphs. Interestingly enough, AMD chose to fix this in Ryzen 7 1700, so those of you buying that CPU will not need to take this offset into account.

According to AMD's statement on the matter, the company is hoping that software will eventually be updated to recognise the temperature offset and start displaying the actual junction temperature.

KitGuru Says: This really seems like the sort of thing that should have been in the reviewer's guide to avoid confusion before launch. If you are planning a Ryzen build right now, make sure you take this offset into account when planning on your cooling solution etc. 

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AMD explains why Ryzen doesn’t seem to keep up in 1080p gaming https://www.kitguru.net/components/cpu/matthew-wilson/amd-explains-why-ryzen-doesnt-seem-to-keep-up-in-1080p-gaming/ https://www.kitguru.net/components/cpu/matthew-wilson/amd-explains-why-ryzen-doesnt-seem-to-keep-up-in-1080p-gaming/#comments Thu, 02 Mar 2017 17:50:34 +0000 http://www.kitguru.net/?p=323933 Today was the official launch day for AMD's Ryzen 7 CPUs and as you may have noticed already, plenty of reviews are now up, including our own review of the Ryzen 7 1800x. While the flagship 1800x has been deemed by many as an excellent CPU for productivity, 1080p gaming results have been less impressive …

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Today was the official launch day for AMD's Ryzen 7 CPUs and as you may have noticed already, plenty of reviews are now up, including our own review of the Ryzen 7 1800x. While the flagship 1800x has been deemed by many as an excellent CPU for productivity, 1080p gaming results have been less impressive when compared to Intel's mainstream Core i7s. It turns out that there is a reason for this and it all comes down to the way games have been optimised over the last few years.

Ryan Shrout over at PCPer was able to get in touch with AMD's CVP of marketing last night with an explanation as to why the Ryzen 7 1800x lags behind in 1080p gaming. The reasoning essentially boils down to developers mainly optimising games for Intel's CPUs over the last few years as AMD has been less competitive.

“CPU benchmarking deficits to the competition in certain games at 1080p resolution can be attributed to the development and optimization of the game uniquely to Intel platforms – until now. Even without optimizations in place, Ryzen delivers high, smooth frame rates on all ‘CPU-bound' games, as well as overall smooth frame rates and great experiences in GPU-bound gaming and VR. With developers taking advantage of Ryzen architecture and the extra cores and threads, we expect benchmarks to only get better, and enable Ryzen excel at next generation gaming experiences as well.”

With that in mind, AMD expects game performance for Ryzen to continue to improve over time as new games get released and old games get additional optimisation tweaks. This is why AMD has been making partnerships with studios like Bethesda, to ensure popular games are properly tuned to make proper use of Ryzen going forward.

KitGuru Says: It was odd to see the Ryzen 1800x beating Intel in so many areas only to falter in games at 1080p resolution. However, as noted in our review, Ryzen does have plenty of power ‘in reserve' for additional tasks, so it seems perhaps games just aren't tapping into Ryzen's full potential just yet. It will be interesting to see how much that changes over the next year. 

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AMD Ryzen 7 1800X CPU Review https://www.kitguru.net/components/cpu/luke-hill/amd-ryzen-7-1800x-cpu-review/ https://www.kitguru.net/components/cpu/luke-hill/amd-ryzen-7-1800x-cpu-review/#comments Thu, 02 Mar 2017 14:00:21 +0000 http://www.kitguru.net/?p=323595 AMD is back with a bang in the processor market. Is a 4.1GHz-capable 8C16T CPU for £490 too good to be true?

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The wait is finally over for what seems to be one of the most eagerly-anticipated pieces of computer hardware in recent history. Four years in the making and over 2 million engineering hours put into bringing it to life, AMD's Zen is finally here. Leading the pack for AMD's new Zen-based processors are three eight-core, sixteen-thread Ryzen 7 SKUs. Fabbed on Global Foundries' 14nm FinFET process and sporting a transistor count of 4.8 Billion, the new AM4-based chips are targeting prosumers who would have otherwise been tempted onto Intel's High-End Desktop (HEDT) platform.

With pricing starting at $329 (around £320), we can now finally say that CPUs with eight high-performance cores have hit a level that will be considered affordable to many, rather than a select few. First in line for review is the flagship Ryzen 7 1800X – an 8C16T, 95W TDP chip with a base clock of 3.6GHz, boost clock up to 4.0GHz, and a 4.1GHz Extended Frequency Range (XFR).

I'm still happy with my *insert Sandy Bridge or Haswell-based CPU model name here* quad-core processor” is perhaps the most common quote that I read any and every time we publish a new CPU-related article. Sandy Bridge was legendary, AMD's Piledriver couldn't compete in many respects, and Haswell offered a well-timed upgrade path.

With Intel's mainstream processors, that sell by the truck load to enthusiast PC builders, still limited to four physical cores, many people simply do not see the need to upgrade their ageing piece of silicon. Add in the ~£400 buy price for Intel's cheapest more-than-four-core enthusiast CPU and it's easy to see why so many people are holding on so tightly to their ‘good enough' processor and investing that upgrade budget elsewhere.

Of course that's not the entire picture, as many prosumers have already jumped to higher core count chips in order to improve productivity. It is, however, a fair even if somewhat crude depiction of the current mainstream, affordable CPU market. You want more than four cores from Intel? Be prepared to pay up. An eight-core Broadwell-E chip tick the right boxes for you? Don't expect any change out of a four-figure payment.

AMD is aiming to change that with Ryzen 7. Eight cores, sixteen threads thanks to Simultaneous Multi-Threading (SMT), and retail pricing spanning $329-499 (around £320-490) are some of Ryzen 7's notable head-turning points. You could quite comfortably add a high-performance graphics card or a decent 4K monitor to your shopping list simply by re-allocating the Ryzen 7 cost differential against Intel's 8-core HEDT offering. That six-core 6800K you were planning on dropping £400+ on; it now goes up against an 8C16T Ryzen 7 chip that is punching close to a 4GHz clock speed.

On the face of it, AMD is set to give the consumer processor market a significant shake-up with the introduction of its Zen-based 8C16T Ryzen 7 offerings.

We got our first look at Ryzen in-the-silicon last week at AMD's Ryzen Tech Day in San Francisco. The headline features, such as a 52% IPC increase versus Excavator and an 8C16T chip with a 95W TDP, had a large proportion of the technical press surprised. When the slides showing computational performance against Intel's $1000 8C16T LGA 2011-3 Core i7 were shown, the reaction changed from surprised to one that was bordering speechless.

In Ryzen 7, AMD is bringing more-than-four-core CPUs to a price point that is as low as a third of the purchase fee for Intel's comparable octa-core options. And the Austin-based chip vendor is doing so while reducing the TDP below triple figures to 95W – a 32% reduction compared to Intel's 6-, 8-, and 10-core consumer LGA 2011-3 offerings.

This is not the first time that we have seen affordable eight-core ‘enthusiast' CPUs – AMD released Bulldozer over 5 years ago, though we'll not get into the debate of exactly what determines a core. It is, however, an interesting change to the processor landscape to be faced with the prospect of a true 8-core CPU that doesn't have a four-figure dollar price and is being touted as offering performance that lives up to its core count.

CPU AMD Ryzen 7 1800X AMD Ryzen 7 1700X AMD Ryzen 7 1700 Intel Core i7 6950X Intel Core i7 6900K Intel Core i7 6800K Intel Core i7 7700K
CPU Codename Zen Zen Zen Broadwell-E Broadwell-E Broadwell-E Kaby Lake
Core / Threads
8 / 16 8 / 16 8 / 16 10 / 20 8 / 16 6 / 12 4 / 8
Base Frequency 3.6GHz 3.4GHz 3.0GHz 3.0GHz 3.2GHz 3.4GHz 4.2GHz
Boost Frequency 4.0GHz 3.8GHz 3.7GHz 3.5GHz 3.7GHz 3.6GHz 4.5GHz
Maximum Frequency 4.1GHz (XFR) 3.9GHz (XFR) 3.75GHz (XFR) 4.0GHz (TBM 3.0) 4.0GHz (TBM 3.0) 3.8GHz (TBM 3.0) n/a
Unlocked Core Multiplier Yes (x0.25 granularity) Yes (x0.25 granularity) Yes (x0.25 granularity) Yes (x1 granularity) Yes (x1 granularity) Yes (x1 granularity) Yes (x1 granularity)
Total Cache 16MB L3 + 4MB L2 16MB L3 + 4MB L2 16MB L3 + 4MB L2 25MB L3 + 2.5MB L2 20MB L3 + 2MB L2 15MB L3 + 1.5MB L2 8MB L3 + 1MB L2
Max. Memory Channels
2 (DDR4) 2 (DDR4) 2 (DDR4) 4 (DDR4) 4 (DDR4) 4 (DDR4) 2 (DDR4 & DDR3L)
Max. Memory Frequency
1866 to 2667MHz 1866 to 2667MHz 1866 to 2667MHz 2400MHz 2400MHz 2400MHz 2400MHz / 1600MHz
PCIe Lanes 16+4+4 16+4+4 16+4+4 40 40 28 16
CPU Socket AM4 AM4 AM4 LGA 2011-3 LGA 2011-3 LGA 2011-3 LGA 1151
Manufacturing Process 14nm 14nm 14nm 14nm 14nm 14nm 14nm
TDP 95W 95W 65W 140W 140W 140W 91W
MSRP $499 $399 $329 $1723-1743 $1089-1109 $434-441 $339-350
UK Street Price Approx. £500 Approx. £400 Approx. £330 Approx. £1650 Approx. £1000 Approx. £400 Approx. £330

All Ryzen CPUs feature an unlocked multiplier that allows them to be overclocked without adjusting the BCLK, using a compatible motherboard chipset.

You can read our Ryzen 7 1700X review HERE and our Ryzen 7 1700 review HERE.

Ryzen 7 1800X Specifications:

  • 3.6GHz base frequency (up to 4.0GHz Precision Boost frequency).
  • Up to 4.1GHz XFR frequency.
  • Unlocked core ratio multiplier.
  • BCLK overclocking capability.
  • 8 cores, 16 threads.
  • 512KB of dedicated L2 cache per core and 8MB of shared L3 cache per 4-core module.
  • Dual-channel DDR4 1866-2667MHz native memory support (up to two DIMMs per channel).
  • 16 PCIe 3.0 lanes for PCIe slots, 4 PCIe 3.0 lanes for high-speed storage, 4 PCIe 3.0 lanes for connection to the chipset.
  • 95W TDP.
  • AM4 socket.
  • $499 pricing (~£490 UK e-tailer price).

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