GeForce GTX 460 1GB vs Radeon HD 6750 1GB

Intro

Compare that to the Radeon HD 6750 1GB, which comes with GPU core speed of 725 MHz, and 1024 MB of GDDR5 memory set to run at 1000 MHz through a 128-bit bus. It also is comprised of 720 SPUs, 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 460 1GB		160 Watts
	Difference: 74 Watts (86%)

Memory Bandwidth

The GeForce GTX 460 1GB should theoretically be quite a bit faster than the Radeon HD 6750 1GB in general. (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 is much (more or less 45%) faster with regards to AF 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 (about 86%) better at full screen anti-aliasing than the Radeon HD 6750 1GB, and will be capable of handling higher screen resolutions without losing too much performance. (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: Memory bandwidth is the max amount of data (counted in MB per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the bus width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 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 amount of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total amount of texture units by the core clock 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 processed in one 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 worked out 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 filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.