Although it was rumored earlier for September 2014 launch, we now have first set of details regarding upcoming Nvidia's Geforce GTX 870 Maxwell GPU based graphics card.

The information come from a Coolaler.com forum member who claims to have a running Geforce GTX 870 sample which he already put through 3DMark benchmark. While the GPU-Z can not correctly detect the GPU yet, the device and GPU name lineup with the expectations since these have not been used before.

According to the specifications read by the GPU-Z, the alleged GTX 870 has 1164 CUDA cores, or precisely, 128 Maxwell cores in 13 SMM blocks. It also comes with 138 TMUs, 32 ROPs and a 256-bit memory interface paired up with 4GB of GDDR5 memory. The GPU works at 1051MHz GPU base clock, 1178MHz GPU Boost clock while memory ended up at 1753MHz (7012MHz effective), at least for the tested sample.




The aforementioned D17U-20 card name and the GPU device ID 13C2 have not been used before so this leak might be the real deal. Of course, there a couple of problems, especially when it comes to CUDA cores and SMM count and TMs, since iet is quite strange for a card to have 138 TMUs as it should end up with 104, since each SMM ends up with 8 TMUs, at least with the Maxwell GM107 GPU.

When put through 3DMark 11, with Core i7-4820K "Ivy Bridge-E" quad-core processor, the graphics card scores P11919 in performance preset and X4625 in the extreme preset which puts it just above the Geforce GTX 780.






Of course, Nvidia will be able to further tweak the performance with drivers so this might be a nice update to the GTX 780, at least judging from this sample, which appears to be a qualification sample.

In any case, September is just around the corner so we will surely keep our eyes open for more leaks.

Source: via Techpowerup.com.