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Nvidia GeForce GTX Titan X 12 GB (SLI)

Rating: 8.5.

If you are considering a new Ultra HD 4K monitor then it is likely you will need a new system update to drive those 8,294,400 pixels. Right now the cost of 4k capable graphics cards is prohibitive for all but the wealthiest of gamers. When we reviewed the Titan X last month we noticed performance could still drop under 60 frames per second when dealing with the most demanding engines. We slot another card into our test bed – we answer the question ‘Are two Titan X's enough to drive 60fps+ at 4K?'

The Nvidia Titan X is based around the physically large GM200 die and is built on the 28nm process.
diagram use 300x199 Nvidia Geforce GTX Titan X 12GB
This is an extended 28nm die, 50 percent bigger than the one found on the GTX980. There are two more GPC clusters, enhancing the specifications to 3,072 cores and 192 texture units.

GPU GeForce GTX 750ti (Maxwell) GeForce GTX 960 (Maxwell) Geforce GTX 970 (Maxwell) GeForce GTX 980 (Maxwell) Geforce GTX Titan X
Streaming Multiprocessors 5 8 13 16 24
CUDA Cores 640 1024 1664 2048 3072
Base Clock 1020 mhz 1126 mhz 1050 mhz 1126 mhz 1000 mhz
GPU Boost Clock 1085 mhz 1178 mhz 1178 mhz 1216 mhz 1076mhz
Total Video memory 2GB 2GB 4GB 4GB 12GB
Texture fill-rate 40.8 Gigatexels/Sec 72.1 Gigatexels/Sec 109.2 Gigatexels/Sec 144.1 Gigatexels/Sec 192 Gigatexels/Sec
Memory Clock 5400 mhz 7010 mhz 7000 mhz 7000 mhz 7000 mhz
Memory Bandwidth 86.4 GB/sec 112.16 GB/sec 224 GB/s 224 GB/sec 336.5 GB/sec
Bus Width 128bit 128bit 256bit 256bit 384bit
ROPs 16 32 56 64 96
Manufacturing Process 28nm 28nm 28nm 28nm 28nm
TDP 60 watts 120 watts 145 watts 165 watts 250 watts

The Nvidia Titan X has 32 more ROPS than the GTX980, totaling 96. The memory interface has been set at a broad 384 bit … comprised of 6 x 64 bit pathways. This is more in line with the older generation of Nvidia hardware, like the GTX780 Ti – as the newer hardware has depended extensively on colour compression algorithms to improve overall efficiency.

Many readers are still under the impression that the Titan range of cards are not designed for gamers, but as I have explained multiple times, Nvidia have been marketing Titan hardware to the gaming enthusiast for years. Don’t take my word for it – the Titan Z for instance, according to Nvidia is a ‘gaming monster’. The Titan Black ‘gives you the added horsepower to drive your most graphics-intensive games’ – all on the Nvidia website here.

According to industry insiders, over 85% of all Titan sales are to the gaming enthusiast.

It is true that many professionals may have considered a Titan oriented graphics card, due to the double precision support. The standard Titan can handle DP calculations at 1/4 SP speed – which when compared directly to the 1/24 rate of the GTX780 Ti, is incredibly quick. The GTX 980 is rated at 1/32 SP and the Titan X is unfortunately no quicker. If you need a graphics card for double precision processing capabilities, then the Titan X is not for you – it is actually slower than the Kepler based Titan hardware from the previous generation.

Nvidia obviously want you to pay more for Double Precision performance, and they (not surprisingly) have a range of wallet sapping Quadro cards on offer, designed to deliver the goods. An example is the Quadro M6000 – built on the same GM200 die as the Titan X, but with much better DP performance. Just be prepared to pay out the ying-yang for the pleasure.

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