GeForce GTX 580 3GB vs Radeon R9 M375X

Intro

Compare all of that to the Radeon R9 M375X, which has core speeds of 1015 MHz on the GPU, and 1125 MHz on the 4096 MB of GDDR5 RAM. It features 640 SPUs along with 40 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the GeForce GTX 580 3GB should theoretically be a lot better than the Radeon R9 M375X overall. (explain)

GeForce GTX 580 3GB		192384 MB/sec
Radeon R9 M375X		72000 MB/sec
	Difference: 120384 (167%)

Texel Rate

The GeForce GTX 580 3GB is quite a bit (about 22%) better at AF than the Radeon R9 M375X. (explain)

GeForce GTX 580 3GB		49408 Mtexels/sec
Radeon R9 M375X		40600 Mtexels/sec
	Difference: 8808 (22%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 580 3GB is superior to the Radeon R9 M375X, and very much so. (explain)

GeForce GTX 580 3GB		37056 Mpixels/sec
Radeon R9 M375X		16240 Mpixels/sec
	Difference: 20816 (128%)

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 max amount of information (in units of megabytes per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the bus width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.