GeForce 8800 GTX vs Radeon HD 6750 1GB

Intro

Compare that to the Radeon HD 6750 1GB, which comes with a GPU core clock speed of 725 MHz, and 1024 MB of GDDR5 RAM running at 1000 MHz through a 128-bit bus. It also features 720 SPUs, 36 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 1GB		86 Watts
GeForce 8800 GTX		155 Watts
	Difference: 69 Watts (80%)

Memory Bandwidth

The GeForce 8800 GTX should theoretically perform a lot faster than the Radeon HD 6750 1GB overall. (explain)

GeForce 8800 GTX		86400 MB/sec
Radeon HD 6750 1GB		64000 MB/sec
	Difference: 22400 (35%)

Texel Rate

The GeForce 8800 GTX is much (approximately 41%) more effective at anisotropic filtering than the Radeon HD 6750 1GB. (explain)

GeForce 8800 GTX		36800 Mtexels/sec
Radeon HD 6750 1GB		26100 Mtexels/sec
	Difference: 10700 (41%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce 8800 GTX is a better choice, though not by far. (explain)

GeForce 8800 GTX		13800 Mpixels/sec
Radeon HD 6750 1GB		11600 Mpixels/sec
	Difference: 2200 (19%)

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 (in units of MB per second) that can be transported 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 type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the 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 most pixels that the graphics chip could possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant 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.