GeForce GTX 275 vs Radeon HD 6750 1GB

Intro

Compare those specs to the Radeon HD 6750 1GB, which features a GPU core clock speed of 725 MHz, and 1024 MB of GDDR5 memory running at 1000 MHz through a 128-bit bus. It also is made up of 720 Stream Processors, 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 275		219 Watts
	Difference: 133 Watts (155%)

Memory Bandwidth

In theory, the GeForce GTX 275 should be a lot faster than the Radeon HD 6750 1GB overall. (explain)

GeForce GTX 275		127008 MB/sec
Radeon HD 6750 1GB		64000 MB/sec
	Difference: 63008 (98%)

Texel Rate

The GeForce GTX 275 is a lot (about 94%) better at anisotropic filtering than the Radeon HD 6750 1GB. (explain)

GeForce GTX 275		50640 Mtexels/sec
Radeon HD 6750 1GB		26100 Mtexels/sec
	Difference: 24540 (94%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 275 is superior to the Radeon HD 6750 1GB, by far. (explain)

GeForce GTX 275		17724 Mpixels/sec
Radeon HD 6750 1GB		11600 Mpixels/sec
	Difference: 6124 (53%)

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 megabytes per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.