GeForce GTX 660 vs Radeon R7 M265

Intro

Compare all of that to the Radeon R7 M265, which uses a 28 nm design. AMD has clocked the core speed at 725 MHz. The DDR3 memory runs at a speed of 1000 MHz on this specific card. It features 384 SPUs as well as 24 Texture Address Units and 8 ROPs.

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 M265		3256 points
	Difference: 1807 (55%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GTX 660 should be quite a bit faster than the Radeon R7 M265 in general. (explain)

GeForce GTX 660		144192 MB/sec
Radeon R7 M265		32000 MB/sec
	Difference: 112192 (351%)

Texel Rate

The GeForce GTX 660 should be much (more or less 351%) more effective at texture filtering than the Radeon R7 M265. (explain)

GeForce GTX 660		78400 Mtexels/sec
Radeon R7 M265		17400 Mtexels/sec
	Difference: 61000 (351%)

Pixel Rate

The GeForce GTX 660 should be quite a bit (about 306%) more effective at FSAA than the Radeon R7 M265, and also will be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 660		23520 Mpixels/sec
Radeon R7 M265		5800 Mpixels/sec
	Difference: 17720 (306%)

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 (measured in MB per second) that can be transported over the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 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, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at 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 its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called 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 - the lower the bandwidth is, the lower the potential to reach the max fill rate.