GeForce GTX 460 SE vs Radeon R7 250X 2GB

Intro

Compare those specs to the Radeon R7 250X 2GB, which has core clock speeds of 1000 MHz on the GPU, and 1125 MHz on the 2048 MB of GDDR5 RAM. It features 640 SPUs along with 40 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X 2GB		95 Watts
GeForce GTX 460 SE		150 Watts
	Difference: 55 Watts (58%)

Memory Bandwidth

In theory, the GeForce GTX 460 SE should be 51% quicker than the Radeon R7 250X 2GB in general, due to its higher data rate. (explain)

GeForce GTX 460 SE		108800 MB/sec
Radeon R7 250X 2GB		72000 MB/sec
	Difference: 36800 (51%)

Texel Rate

The Radeon R7 250X 2GB is much (more or less 28%) faster with regards to AF than the GeForce GTX 460 SE. (explain)

Radeon R7 250X 2GB		40000 Mtexels/sec
GeForce GTX 460 SE		31200 Mtexels/sec
	Difference: 8800 (28%)

Pixel Rate

The GeForce GTX 460 SE will be quite a bit (approximately 30%) faster with regards to anti-aliasing than the Radeon R7 250X 2GB, and capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 460 SE		20800 Mpixels/sec
Radeon R7 250X 2GB		16000 Mpixels/sec
	Difference: 4800 (30%)

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: Bandwidth is the maximum amount of information (measured in MB per second) that can be transferred past the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory speed. If it uses DDR type RAM, 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 AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total number of texture units 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 applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs 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 fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.