GeForce GTX 580 3GB vs Radeon R7 370 4G

Intro

Compare those specs to the Radeon R7 370 4G, which comes with GPU clock speed of 975 MHz, and 4096 MB of GDDR5 RAM set to run at 1400 MHz through a 256-bit bus. It also is comprised of 1024 SPUs, 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 will be 7% quicker than the Radeon R7 370 4G in general, because of its greater data rate. (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 is quite a bit (about 26%) more effective at texture 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 will be just a bit (more or less 19%) better at FSAA than the Radeon R7 370 4G, and also should be capable of handling higher screen resolutions without slowing down too much. (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 maximum amount of information (in units of MB per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. If the card has 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, High Dynamic Range and higher screen resolutions.

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

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