GeForce GTX 460 (OEM) vs Radeon HD 7750

Intro

Compare those specs to the Radeon HD 7750, which comes with GPU clock speed of 800 MHz, and 1024 MB of GDDR5 memory running at 1125 MHz through a 128-bit bus. It also is made up of 512 Stream Processors, 32 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750		55 Watts
GeForce GTX 460 (OEM)		150 Watts
	Difference: 95 Watts (173%)

Memory Bandwidth

In theory, the GeForce GTX 460 (OEM) should perform much faster than the Radeon HD 7750 in general. (explain)

GeForce GTX 460 (OEM)		108800 MB/sec
Radeon HD 7750		72000 MB/sec
	Difference: 36800 (51%)

Texel Rate

The GeForce GTX 460 (OEM) will be quite a bit (more or less 42%) more effective at anisotropic filtering than the Radeon HD 7750. (explain)

GeForce GTX 460 (OEM)		36400 Mtexels/sec
Radeon HD 7750		25600 Mtexels/sec
	Difference: 10800 (42%)

Pixel Rate

The GeForce GTX 460 (OEM) should be much (approximately 63%) more effective at FSAA than the Radeon HD 7750, and also should be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 460 (OEM)		20800 Mpixels/sec
Radeon HD 7750		12800 Mpixels/sec
	Difference: 8000 (63%)

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 largest amount of information (measured in MB per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

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