GeForce GTX 660 vs Radeon R7 370 4G

Intro

Compare all that to the Radeon R7 370 4G, which features GPU clock speed of 975 MHz, and 4096 MB of GDDR5 memory set to run at 1400 MHz through a 256-bit bus. It also is made up 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 660		140 Watts
	Difference: 30 Watts (27%)

Memory Bandwidth

The Radeon R7 370 4G should theoretically perform much faster than the GeForce GTX 660 in general. (explain)

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

Texel Rate

The GeForce GTX 660 should be quite a bit (more or less 26%) better at anisotropic 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 high levels of AA is important to you, then the Radeon R7 370 4G is the winner, by a large margin. (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: Memory bandwidth is the maximum amount of data (in units of MB per second) that can be transferred across the external memory interface within a second. It's calculated by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total number of 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 applied per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units 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 is also dependant on many 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.