GeForce GTX 460 1GB vs Radeon HD 6750 1GB

Intro

Compare all of that to the Radeon HD 6750 1GB, which comes with a clock frequency of 725 MHz and a GDDR5 memory frequency of 1000 MHz. It also uses a 128-bit memory bus, and uses a 40 nm design. It is comprised of 720 SPUs, 36 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 1GB		86 Watts
GeForce GTX 460 1GB		160 Watts
	Difference: 74 Watts (86%)

Memory Bandwidth

In theory, the GeForce GTX 460 1GB should be much faster than the Radeon HD 6750 1GB overall. (explain)

GeForce GTX 460 1GB		115200 MB/sec
Radeon HD 6750 1GB		64000 MB/sec
	Difference: 51200 (80%)

Texel Rate

The GeForce GTX 460 1GB will be quite a bit (about 45%) more effective at anisotropic filtering than the Radeon HD 6750 1GB. (explain)

GeForce GTX 460 1GB		37800 Mtexels/sec
Radeon HD 6750 1GB		26100 Mtexels/sec
	Difference: 11700 (45%)

Pixel Rate

The GeForce GTX 460 1GB will be a lot (more or less 86%) faster with regards to anti-aliasing than the Radeon HD 6750 1GB, and should be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 460 1GB		21600 Mpixels/sec
Radeon HD 6750 1GB		11600 Mpixels/sec
	Difference: 10000 (86%)

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 data (in units of MB per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated 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 rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.