GeForce GTX 460 SE vs Radeon HD 6750

Intro

Compare those specifications to the Radeon HD 6750, which comes with a clock speed of 725 MHz and a GDDR5 memory speed of 1000 MHz. It also features a 128-bit bus, and makes use of a 40 nm design. It is comprised of 720 SPUs, 36 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750		86 Watts
GeForce GTX 460 SE		150 Watts
	Difference: 64 Watts (74%)

Memory Bandwidth

The GeForce GTX 460 SE should in theory be a lot faster than the Radeon HD 6750 overall. (explain)

GeForce GTX 460 SE		108800 MB/sec
Radeon HD 6750		64000 MB/sec
	Difference: 44800 (70%)

Texel Rate

The GeForce GTX 460 SE should be a small bit (more or less 20%) more effective at texture filtering than the Radeon HD 6750. (explain)

GeForce GTX 460 SE		31200 Mtexels/sec
Radeon HD 6750		26100 Mtexels/sec
	Difference: 5100 (20%)

Pixel Rate

The GeForce GTX 460 SE is a lot (about 79%) more effective at AA than the Radeon HD 6750, and also should be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 460 SE		20800 Mpixels/sec
Radeon HD 6750		11600 Mpixels/sec
	Difference: 9200 (79%)

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 max amount of information (in units of MB per second) that can be moved past the external memory interface in a second. It is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video 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 amount of pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.