GeForce GTX 260 216SP 55 nm vs Radeon R7 M265

Intro

Compare all of that to the Radeon R7 M265, which has GPU clock speed of 725 MHz, and 2048 MB of DDR3 RAM set to run at 1000 MHz through a 128-bit bus. It also is comprised of 384 SPUs, 24 TAUs, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the GeForce GTX 260 216SP 55 nm should perform quite a bit faster than the Radeon R7 M265 overall. (explain)

GeForce GTX 260 216SP 55 nm		111888 MB/sec
Radeon R7 M265		32000 MB/sec
	Difference: 79888 (250%)

Texel Rate

The GeForce GTX 260 216SP 55 nm should be quite a bit (more or less 138%) more effective at AF than the Radeon R7 M265. (explain)

GeForce GTX 260 216SP 55 nm		41472 Mtexels/sec
Radeon R7 M265		17400 Mtexels/sec
	Difference: 24072 (138%)

Pixel Rate

The GeForce GTX 260 216SP 55 nm should be quite a bit (more or less 178%) more effective at FSAA than the Radeon R7 M265, and should be able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX 260 216SP 55 nm		16128 Mpixels/sec
Radeon R7 M265		5800 Mpixels/sec
	Difference: 10328 (178%)

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 information (counted in MB per second) that can be transported past the external memory interface in a second. It is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total texture units by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.