GeForce GTX 460 SE vs Radeon HD 6750 1GB

Intro

Compare those specs to the Radeon HD 6750 1GB, which uses a 40 nm design. AMD has set the core speed at 725 MHz. The GDDR5 RAM runs at a frequency of 1000 MHz on this specific card. It features 720 SPUs along with 36 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 1GB		86 Watts
GeForce GTX 460 SE		150 Watts
	Difference: 64 Watts (74%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 460 SE is 70% faster than the Radeon HD 6750 1GB overall, because of its greater bandwidth. (explain)

GeForce GTX 460 SE		108800 MB/sec
Radeon HD 6750 1GB		64000 MB/sec
	Difference: 44800 (70%)

Texel Rate

The GeForce GTX 460 SE will be a small bit (about 20%) faster with regards to texture filtering than the Radeon HD 6750 1GB. (explain)

GeForce GTX 460 SE		31200 Mtexels/sec
Radeon HD 6750 1GB		26100 Mtexels/sec
	Difference: 5100 (20%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 460 SE is the winner, by far. (explain)

GeForce GTX 460 SE		20800 Mpixels/sec
Radeon HD 6750 1GB		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: Memory bandwidth is the max amount of data (in units of MB per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.