GeForce GTX 260 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 is comprised 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 260		182 Watts
	Difference: 96 Watts (112%)

Memory Bandwidth

The GeForce GTX 260 should in theory be quite a bit faster than the Radeon HD 6750 1GB in general. (explain)

GeForce GTX 260		111888 MB/sec
Radeon HD 6750 1GB		64000 MB/sec
	Difference: 47888 (75%)

Texel Rate

The GeForce GTX 260 will be quite a bit (approximately 41%) more effective at texture filtering than the Radeon HD 6750 1GB. (explain)

GeForce GTX 260		36864 Mtexels/sec
Radeon HD 6750 1GB		26100 Mtexels/sec
	Difference: 10764 (41%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 260 is superior to the Radeon HD 6750 1GB, by far. (explain)

GeForce GTX 260		16128 Mpixels/sec
Radeon HD 6750 1GB		11600 Mpixels/sec
	Difference: 4528 (39%)

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 transported across the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better 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 are processed in one second. This number is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.