Geforce GTX 1080 Ti vs Radeon R9 M385X

Intro

Compare all of that to the Radeon R9 M385X, which uses a 28 nm design. AMD has clocked the core frequency at 1100 MHz. The GDDR5 memory works at a frequency of 1500 MHz on this particular card. It features 896 SPUs as well as 56 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Geforce GTX 1080 Ti, in theory, should perform quite a bit faster than the Radeon R9 M385X overall. (explain)

Geforce GTX 1080 Ti		495616 MB/sec
Radeon R9 M385X		96000 MB/sec
	Difference: 399616 (416%)

Texel Rate

The Geforce GTX 1080 Ti should be quite a bit (about 438%) faster with regards to texture filtering than the Radeon R9 M385X. (explain)

Geforce GTX 1080 Ti		331520 Mtexels/sec
Radeon R9 M385X		61600 Mtexels/sec
	Difference: 269920 (438%)

Pixel Rate

The Geforce GTX 1080 Ti is much (about 640%) better at full screen anti-aliasing than the Radeon R9 M385X, and should be capable of handling higher screen resolutions without losing too much performance. (explain)

Geforce GTX 1080 Ti		130240 Mpixels/sec
Radeon R9 M385X		17600 Mpixels/sec
	Difference: 112640 (640%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in MB per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.