AMD made a short Ashes of Singularity demonstration of Radeon RX 480 during Computex Polaris announcement. According to AMD, RX 480 CF offers better frame rate while being utilized at 183% compared to NVIDIA’s GeForce GTX 1080.
Currently RX 480 is $199 and GTX 1080 is $599/$699.
Head of Global Technical Marketing at AMD Robert Hallock shared more details about this demonstration and explained the ‘controversy’ over different image quality using competing hardware:
At present the GTX 1080 is incorrectly executing the terrain shaders responsible for populating the environment with the appropriate amount of snow. The GTX 1080 is doing less work to render AOTS than it otherwise would if the shader were being run properly.
- CPU: i7 5930K
- RAM: 32GB DDR4-2400Mhz
- Motherboard: Asrock X99M Killer
- GPU config 1: 2x Radeon RX 480 @ PCIE 3.0 x16 for each GPU
- GPU config 2: Founders Edition GTX 1080
- OS: Win 10 64bit
- AMD Driver: 16.30-160525n-230356E
- NV Driver: 368.1
In Game Settings for both configs: Crazy Settings | 1080P | 8x MSAA | VSYNC OFF
2x Radeon RX 480 – 62.5 fps | Single Batch GPU Util: 51% | Med Batch GPU Util: 71.9 | Heavy Batch GPU Util: 92.3% GTX 1080 – 58.7 fps | Single Batch GPU Util: 98.7%| Med Batch GPU Util: 97.9% | Heavy Batch GPU Util: 98.7%
At present the GTX 1080 is incorrectly executing the terrain shaders responsible for populating the environment with the appropriate amount of snow. The GTX 1080 is doing less work to render AOTS than it otherwise would if the shader were being run properly. Snow is somewhat flat and boring in color compared to shiny rocks, which gives the illusion that less is being rendered, but this is an incorrect interpretation of how the terrain shaders are functioning in this title.
So, even with fudgy image quality on the GTX 1080 that could improve their performance a few percent, dual RX 480 still came out ahead.