GeForce GTX 460 (OEM) vs Radeon R9 M280X

Intro

Compare those specs to the Radeon R9 M280X, which comes with clock speeds of 900 MHz on the GPU, and 1375 MHz on the 4096 MB of GDDR5 memory. It features 896 SPUs as well as 56 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M280X		75 Watts
GeForce GTX 460 (OEM)		150 Watts
	Difference: 75 Watts (100%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 460 (OEM) should perform much faster than the Radeon R9 M280X overall. (explain)

GeForce GTX 460 (OEM)		108800 MB/sec
Radeon R9 M280X		88000 MB/sec
	Difference: 20800 (24%)

Texel Rate

The Radeon R9 M280X will be a lot (about 38%) faster with regards to texture filtering than the GeForce GTX 460 (OEM). (explain)

Radeon R9 M280X		50400 Mtexels/sec
GeForce GTX 460 (OEM)		36400 Mtexels/sec
	Difference: 14000 (38%)

Pixel Rate

The GeForce GTX 460 (OEM) is quite a bit (approximately 44%) faster with regards to anti-aliasing than the Radeon R9 M280X, and also will be capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 460 (OEM)		20800 Mpixels/sec
Radeon R9 M280X		14400 Mpixels/sec
	Difference: 6400 (44%)

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 max amount of information (counted in MB per second) that can be transported past the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.