GeForce GTX 580 3GB vs Radeon R7 370 4G

Intro

Compare that to the Radeon R7 370 4G, which features a GPU core clock speed of 975 MHz, and 4096 MB of GDDR5 memory running at 1400 MHz through a 256-bit bus. It also is comprised of 1024 Stream Processors, 64 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 370 4G		110 Watts
GeForce GTX 580 3GB		244 Watts
	Difference: 134 Watts (122%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 580 3GB should be a bit faster than the Radeon R7 370 4G in general. (explain)

GeForce GTX 580 3GB		192384 MB/sec
Radeon R7 370 4G		179200 MB/sec
	Difference: 13184 (7%)

Texel Rate

The Radeon R7 370 4G will be quite a bit (approximately 26%) better at anisotropic filtering than the GeForce GTX 580 3GB. (explain)

Radeon R7 370 4G		62400 Mtexels/sec
GeForce GTX 580 3GB		49408 Mtexels/sec
	Difference: 12992 (26%)

Pixel Rate

The GeForce GTX 580 3GB should be just a bit (approximately 19%) more effective at FSAA than the Radeon R7 370 4G, and capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 580 3GB		37056 Mpixels/sec
Radeon R7 370 4G		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 largest amount of data (measured in MB per second) that can be transported over the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount 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 filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.