GeForce GTX 660 vs Radeon R7 M260

Intro

Compare that to the Radeon R7 M260, which has GPU clock speed of 715 MHz, and 2048 MB of DDR3 RAM set to run at 1000 MHz through a 64-bit bus. It also is made up of 384 SPUs, 24 TAUs, and 8 Raster Operation Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 660		5063 points
Radeon R7 M260		1120 points
	Difference: 3943 (352%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce GTX 660 should theoretically perform much faster than the Radeon R7 M260 overall. (explain)

GeForce GTX 660		144192 MB/sec
Radeon R7 M260		16000 MB/sec
	Difference: 128192 (801%)

Texel Rate

The GeForce GTX 660 should be quite a bit (approximately 357%) more effective at AF than the Radeon R7 M260. (explain)

GeForce GTX 660		78400 Mtexels/sec
Radeon R7 M260		17160 Mtexels/sec
	Difference: 61240 (357%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 660 is the winner, by a large margin. (explain)

GeForce GTX 660		23520 Mpixels/sec
Radeon R7 M260		5720 Mpixels/sec
	Difference: 17800 (311%)

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 largest amount of data (counted in MB per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total texture units by the core clock 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 per second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.