GeForce GTX 660 vs Radeon R7 370 4G

Intro

Compare all that to the Radeon R7 370 4G, which has core speeds of 975 MHz on the GPU, and 1400 MHz on the 4096 MB of GDDR5 memory. It features 1024 SPUs along with 64 Texture Address Units 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 660		140 Watts
	Difference: 30 Watts (27%)

Memory Bandwidth

In theory, the Radeon R7 370 4G is 24% faster than the GeForce GTX 660 in general, due to its greater bandwidth. (explain)

Radeon R7 370 4G		179200 MB/sec
GeForce GTX 660		144192 MB/sec
	Difference: 35008 (24%)

Texel Rate

The GeForce GTX 660 will be a lot (more or less 26%) more effective at texture filtering than the Radeon R7 370 4G. (explain)

GeForce GTX 660		78400 Mtexels/sec
Radeon R7 370 4G		62400 Mtexels/sec
	Difference: 16000 (26%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R7 370 4G is the winner, and very much so. (explain)

Radeon R7 370 4G		31200 Mpixels/sec
GeForce GTX 660		23520 Mpixels/sec
	Difference: 7680 (33%)

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 (counted in MB per second) that can be transferred over the external memory interface within a second. It's worked out by multiplying the bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 once 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 AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at handling 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 write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount 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 is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.