GeForce GTX 580 3GB vs Radeon R9 M375X

Intro

Compare all that to the Radeon R9 M375X, which features a clock frequency of 1015 MHz and a GDDR5 memory frequency of 1125 MHz. It also features a 128-bit memory bus, and uses a 28 nm design. It is made up of 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GTX 580 3GB should perform much faster 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 much (approximately 22%) more effective 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

The GeForce GTX 580 3GB should be a lot (about 128%) faster with regards to anti-aliasing than the Radeon R9 M375X, and also should be able to handle higher screen resolutions while still performing well. (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 largest amount of data (counted in megabytes per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This figure 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 graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.