GeForce GTX 580 3GB vs Radeon R7 370 2G

Intro

Compare those specifications to the Radeon R7 370 2G, which has core clock speeds of 975 MHz on the GPU, and 1400 MHz on the 2048 MB of GDDR5 memory. It features 1024 SPUs as well as 64 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 370 2G		110 Watts
GeForce GTX 580 3GB		244 Watts
	Difference: 134 Watts (122%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 580 3GB should be 7% quicker than the Radeon R7 370 2G overall, because of its higher bandwidth. (explain)

GeForce GTX 580 3GB		192384 MB/sec
Radeon R7 370 2G		179200 MB/sec
	Difference: 13184 (7%)

Texel Rate

The Radeon R7 370 2G should be quite a bit (about 26%) better at AF than the GeForce GTX 580 3GB. (explain)

Radeon R7 370 2G		62400 Mtexels/sec
GeForce GTX 580 3GB		49408 Mtexels/sec
	Difference: 12992 (26%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 580 3GB is a better choice, not by a very large margin though. (explain)

GeForce GTX 580 3GB		37056 Mpixels/sec
Radeon R7 370 2G		31200 Mpixels/sec
	Difference: 5856 (19%)

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 transferred past the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster 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 number of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.