GeForce GTX 275 vs Radeon HD 6750 1GB

Intro

Compare those specifications to the Radeon HD 6750 1GB, which features a clock frequency of 725 MHz and a GDDR5 memory speed of 1000 MHz. It also features a 128-bit bus, and uses a 40 nm design. It features 720 SPUs, 36 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

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 98% quicker than the Radeon HD 6750 1GB in general, due to its higher data rate. (explain)

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

Texel Rate

The GeForce GTX 275 is much (about 94%) faster with regards to 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 running with high levels of AA is important to you, then the GeForce GTX 275 is a better choice, by a large margin. (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: Memory bandwidth is the maximum amount of data (in units of MB per second) that can be transported across the external memory interface in one second. It's calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, 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 number of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the card's clock speed. 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 output rate also depends on many 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.