GeForce GTX 460 2GB vs Radeon HD 6750 1GB

Intro

Compare those specifications to the Radeon HD 6750 1GB, which makes use of a 40 nm design. AMD has set the core speed at 725 MHz. The GDDR5 RAM runs at a speed of 1000 MHz on this particular card. It features 720 SPUs along with 36 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 1GB		86 Watts
GeForce GTX 460 2GB		160 Watts
	Difference: 74 Watts (86%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 460 2GB should theoretically be much better than the Radeon HD 6750 1GB in general. (explain)

GeForce GTX 460 2GB		115200 MB/sec
Radeon HD 6750 1GB		64000 MB/sec
	Difference: 51200 (80%)

Texel Rate

The GeForce GTX 460 2GB is much (about 45%) better at texture filtering than the Radeon HD 6750 1GB. (explain)

GeForce GTX 460 2GB		37800 Mtexels/sec
Radeon HD 6750 1GB		26100 Mtexels/sec
	Difference: 11700 (45%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 460 2GB is superior to the Radeon HD 6750 1GB, and very much so. (explain)

GeForce GTX 460 2GB		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 largest amount of data (measured in MB per second) that can be transferred past 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 RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.