GeForce GTX 460 SE vs Radeon R9 M265X

Intro

Compare all of that to the Radeon R9 M265X, which features core speeds of 575 MHz on the GPU, and 1125 MHz on the 2048 MB of GDDR5 RAM. It features 640 SPUs as well as 40 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the GeForce GTX 460 SE should theoretically be much superior to the Radeon R9 M265X overall. (explain)

GeForce GTX 460 SE		108800 MB/sec
Radeon R9 M265X		72000 MB/sec
	Difference: 36800 (51%)

Texel Rate

The GeForce GTX 460 SE should be quite a bit (more or less 36%) more effective at anisotropic filtering than the Radeon R9 M265X. (explain)

GeForce GTX 460 SE		31200 Mtexels/sec
Radeon R9 M265X		23000 Mtexels/sec
	Difference: 8200 (36%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 460 SE is superior to the Radeon R9 M265X, by far. (explain)

GeForce GTX 460 SE		20800 Mpixels/sec
Radeon R9 M265X		9200 Mpixels/sec
	Difference: 11600 (126%)

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 megabytes per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. 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 texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.