AMD Radeon Fury X beats Titan X in OpenCL

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So the funny thing about people is that once they have cool hardware, they test stuff and sometimes forget that the results of a benchmark can be inserted into an online database, which is publicly available. AMD Radeon Fury (Fiji) just popped up in an OpenCL benchmark, confirming a number of things.



The leak shows that the HBM based Fiji XT aka Radeon Fury X slaps around the NVIDIA GeForce GTX Titan X, with a good margin as well. It is OpenCL though, compute stuff. And then again, the R9 280X is not be that far behind the Titan X either - so here you immediately see why we don't do OpenCL benchmarks in our benchmarks as they say very little.
 


The card shown as "AMD Radeon Graphics Processor" would be Fiji / Fury X. The Fury X drops the ball to the Titan X in a 'face detection' test on CompuBench, yet beats the Titan X once again in the 'TV-L1 Optical Flow' test. AMD Radeon Fury X scores 102FPS on the Manhattan benchmark found in GFXBench where Titan X it doing 137FPS. 
 

Now there is something else quite intersting you can extrapolate from these results, the GPGPU Info app registers how many compute units (CUs) a GPU has as well as the GPU codename hence we can verify this was the real thing.

  • Name: Fiji
  • max_clock_frequency 1000
  • max_compute_units 64

GFXBench shows a Compute Unit count of 64 multiply that with GCN architecture, thus per compute unit you will see 64 stream processors, and we now know the number of shader processors for Fiji, 64 shader processors x 64 CUs = 4096 shader processors.

It also is listing the maximum clock frequency at 1 GHz. If we chart things up it would look something like this:
 

  AMD Radeon Fiji AMD Radeon R9 390
Fabrication Process 28nm 28nm
GPU Fiji Hawaii renamed to Grenada
Streaming Processors 4096 2816
Graphics memory 4 GB HBM 8 GB GDDR5
Memory Clock up-to 500 MHz per stack (x4) 5.0 GHz
Core Clock > 1.00 GHz > 1.00 GHz
Memory Bandwidth >640 GB/s 320 GB/s
Power Connectors 1 x 6-pin - 1 x 8-pin 1 x 6-pin - 1 x 8-pin
Form Factor Full Height, Dual slot Full Height, Dual slot
Freesync  Yes Yes
DirectX 12 Support  Yes Yes


Can I just say one thing ? OpenCL Compubench means very little ... real games with real DX11/DX12 software is where the money shot is to be found of course. AMD Radeon Fury X and Radeon R9 390X will be unveiled next week at E3 2015.


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