Hybrid hybrid of GeForce and Radeon with DirectX 12 heterogeneous GPU "EMA" results in surprising results

Low-level graphics API supported on Windows 10DirectX 12"Uses a mixture of multiple types of GPUs"Explicit Multi Adapter (EMA)Function is supported. Under DirectX 12 environment, NVIDIA's GeForce and AMD's Radeon are combined to realize a dream collaboration that improves performance, so that not only gamers seeking high performance but also surplus graphics boards are supplemented It can be advantageous to many users in that it can be used. The results of benchmarks by collaboration of such dreams using such EMA are outgoing one after another, and results as expected and unexpected results are revealed.

AMD + NVIDIA Multi-GPU DirectX 12 Benchmark: R9 390X + GTX 970 in 'SLIFire' | Gamers Nexus - Gaming PC Builds & amp; Hardware Benchmarks
http://www.gamersnexus.net/game-bench/2326-amd-nvidia-sli-directx-12-benchmark-explicit-multi-gpu

DirectX 12 Multi-GPU Technology Tested: GeForce and Radeon Paired Together> Benchmarks: 1600 p Single & Multi-GPU Results - TechSpot
http://www.techspot.com/article/1137-directx-12-multi-gpu-geforce-radeon/page2.html

The impossible has happened: Testing Radeon and GeForce together in DirectX 12 | PCWorld
http://www.pcworld.com/article/3036760/hardware/the-impossible-has-happened-radeon-and-geforce-come-together-in-directx-12.html

◆ heterogeneous GPU function "EMA"
As a technology that already uses multiple GPUs to increase performance (multi GPU), NVIDIASLI, AMD hasCrossFireXAlthough in any case you need to use the same kind of graphic board. For example, to use GeForce GTX 980 with SLI you need multiple GTX 980, you can not configure SLI using GTX 980 and GTX 970. Of course, it was impossible to improve performance by mixing NVIDIA graphic board and AMD graphic board.


However, with DirectX 12 EMA, you can combine graphics boards of different models called GTX 980 + GTX 970, as well as NVIDIA GeForce + AMD Radeon, to work with different brand graphics boards of different manufacturers and to increase graphics performance It is.

Furthermore, DirectX 12 has a function called "Split frame rendering (SFR)", which makes it possible to maximize use of GPU memory of graphic board in multi GPU environment. In the conventional multi-GPU, it is necessary to mirror (synchronize) the frame buffer of the GPU memory, so even if you use two 8 GB R9 390 with CrossFire, GPU memory can only be used as 8 GB and you can use 16 GB It is not. On the other hand, in SFR, it is not necessary to synchronize the memory because each GPU draws each screen after splitting the screen, so if you use a 4 GB memory graphic board and a 6 GB memory graphic board with EMA you get 10 GB It can be handled as a graphic board with memory of.


◆ GeForce + Radeon hybrid benchmark
Game which corresponded to DirectX 12 early "Ashes of the Singularity"Formally responds to EMA with the in-game benchmark function" DirectX 12 Benchmark Version 2 ". Finally, as the collaboration between GeForce and Radeon's dream has come true, as early as possible, benchmark measurements are being carried out using "EMA composition of different graphic boards".

· Test results of Gamers Nexus
Gamers NexusThe motherboard "EVGA X99 Classified",CPU"Intel Core i7-5930K",memory"Kingston 16GB DDR4 Predator", SSD" (PDF file)Kingston HyperX Savage SSD"We measure the benchmark with the configuration of. In addition, Gamers Nexus seems to name the composition of GeForce + Radeon "SLIFire".

The result of benchmark by Gamers Nexus can be confirmed in the following movie.

SLIFIRE: 390X + GTX 970 in DirectX 12 Benchmark - YouTube


The frame rates using GeForce GTX 970 and Radeon R 9 390 X are as follows. The GTX 970 + R 9 390 X is about 25% faster than the SLI configuration of the GTX 970.


TechSpot test results
continue,TechSpotResults of benchmark measurement by. The benchmark for the graphics board alone is as follows, and in comparison of GPU performance of the same grade, Radeon has a good result that surpasses GeForce by surprise. AlreadyIt is pointed out that AMD Radeon will be advantageous in DirectX 12There was, but it is the result of that exactly.


The benchmark results obtained by exchanging the primary GPU (main graphic board) and the secondary GPU (sub graphic board) in EMA are as follows. Even with the same combination, Radeon as the main · GeForce as a sub-sub is demonstrating higher performance than the opposite case. After all, I understand Radeon's predominance in the DirectX 12 environment well.


· PCWorld test result
PCWorldIn the benchmark test, results showing the high performance of DirectX 12 EMA are appearing.

It should be noted that the test results when using two GTX 980s. It is clear that the frame rate is higher and the higher graphic performance is demonstrated when the SLI is disabled and configured with EMA than when GTX 980 is configured with SLI.


Both benchmark tests proved the power of EMA to combine different GPUs under DirectX 12 environment, but at the same time it is also clear that AMD graphics boards are more likely to demonstrate higher effectiveness. Regarding this, Gamers Nexus points out that NVIDIA's graphics driver is due to immature matters.

DirectX 12's EMA can be combined with an external graphic board as well as graphic functions built in CPU such as AMD APU and Intel HD Graphics as well as graphic boards. If the number of games supporting DirectX 12 increases, the width of the GPU configuration seems to increase at once.