GeForce GTX 280 vs Radeon HD 6750

Intro

Compare that to the Radeon HD 6750, which has GPU clock speed of 725 MHz, and 512 MB of GDDR5 RAM set to run at 1000 MHz through a 128-bit bus. It also features 720 Stream Processors, 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		86 Watts
GeForce GTX 280		236 Watts
	Difference: 150 Watts (174%)

Memory Bandwidth

The GeForce GTX 280 should in theory be quite a bit faster than the Radeon HD 6750 in general. (explain)

GeForce GTX 280		141696 MB/sec
Radeon HD 6750		64000 MB/sec
	Difference: 77696 (121%)

Texel Rate

The GeForce GTX 280 is quite a bit (more or less 85%) more effective at anisotropic filtering than the Radeon HD 6750. (explain)

GeForce GTX 280		48160 Mtexels/sec
Radeon HD 6750		26100 Mtexels/sec
	Difference: 22060 (85%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 280 is a better choice, and very much so. (explain)

GeForce GTX 280		19264 Mpixels/sec
Radeon HD 6750		11600 Mpixels/sec
	Difference: 7664 (66%)

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 data (in units of megabytes per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher 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 per second. This figure is calculated by multiplying the total texture units of the card by the core 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 in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.