Geforce GTX 1080 Ti vs Radeon R9 M385X

Intro

Compare those specifications to the Radeon R9 M385X, which has a core clock frequency of 1100 MHz and a GDDR5 memory frequency of 1500 MHz. It also features a 128-bit bus, and makes use of a 28 nm design. It is made up of 896 SPUs, 56 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Geforce GTX 1080 Ti should theoretically be quite a bit superior to the Radeon R9 M385X in general. (explain)

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

Texel Rate

The Geforce GTX 1080 Ti is much (more or less 438%) better at AF than the Radeon R9 M385X. (explain)

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

Pixel Rate

If using lots of anti-aliasing is important to you, then the Geforce GTX 1080 Ti is the winner, by a large margin. (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: Memory bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved over the external memory interface in a second. It is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.