GeForce GTX 480 vs Radeon HD 6750 1GB

Intro

Compare those specifications to the Radeon HD 6750 1GB, which features core speeds of 725 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 RAM. It features 720 SPUs as well as 36 TAUs 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 480		250 Watts
	Difference: 164 Watts (191%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 480 should perform a lot faster than the Radeon HD 6750 1GB in general. (explain)

GeForce GTX 480		177408 MB/sec
Radeon HD 6750 1GB		64000 MB/sec
	Difference: 113408 (177%)

Texel Rate

The GeForce GTX 480 is a lot (approximately 61%) more effective at anisotropic filtering than the Radeon HD 6750 1GB. (explain)

GeForce GTX 480		42000 Mtexels/sec
Radeon HD 6750 1GB		26100 Mtexels/sec
	Difference: 15900 (61%)

Pixel Rate

The GeForce GTX 480 should be a lot (more or less 190%) more effective at full screen anti-aliasing than the Radeon HD 6750 1GB, and capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 480		33600 Mpixels/sec
Radeon HD 6750 1GB		11600 Mpixels/sec
	Difference: 22000 (190%)

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 information (in units of megabytes per second) that can be transported over the external memory interface in a second. The number is worked out by multiplying the bus width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the 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 are applied in one second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.