The new GTX Titan X is based on the same Maxwell architecture as its market leading sibling, the GTX 980. In terms of specs the Titan X is basically one and a half GTX 980s with 50% more CUDA cores, 50% more texture units and 50% more transistors. Comparing the performance profiles of the GTX 980 and Titan X shows that the Titan X leads by 36% which is broadly proportional to its improved hardware specs. With performance up by 36% and prices up by nearly 100% the Titan X is a hard sell from a value perspective. Two GTX 980s cost roughly the same as one Titan X and in SLI outperform a single Titan X by around 50%. The Titan X obviously isn't aimed at value conscious buyers but if you are in the market for the fastest single consumer graphics card money can buy, then the Titan X will hit the spot perfectly. [Mar '15GPUPro]
The new AMD R9 390 is the direct successor to the R9 290. Both cards share the same GPU but the R9 390 is factory overclocked. The R9 390 has a 5% higher stock GPU clock, and a substantial stock memory clock increase of 20%. Additionally the R9 390 sports a minimum of 8GB of VRAM versus 4GB on the R9 290. At the current price levels of $329, the R9 390 can't compete given that R9 290s can be had for around $260. The increased VRAM will rarely help even at ultra high resolutions and in any case, most 4K gamers are likely to seek more GPU power than the R9 390 has to offer. We have seen several samples of the R9 390 and they scored an effective speed of 88.5% which, as expected, matches the speeds seen on overclocked R9 290s. On the face of it purchasing an R9 290 at a discount and then manually overclocking will result in the same performance as an R9 390 but with a saving of around $70. [Jun '15GPUPro]
We calculate effective 3D speed which estimates gaming performance for the top 12 games. Effective speed is adjusted by current prices to yield value for money. Our figures are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top GPUs. [GPUPro]
Welcome to our PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best value for money upgrades.