GeForce GTX 460 vs Radeon HD 5670

Intro

Compare all that to the Radeon HD 5670, which uses a 40 nm design. AMD has clocked the core speed at 775 MHz. The GDDR5 memory is set to run at a speed of 1000 MHz on this specific model. It features 400(80x5) SPUs along with 20 TAUs and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670		61 Watts
GeForce GTX 460		150 Watts
	Difference: 89 Watts (146%)

Memory Bandwidth

In theory, the GeForce GTX 460 will be 35% quicker than the Radeon HD 5670 in general, because of its higher data rate. (explain)

GeForce GTX 460		86400 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 22400 (35%)

Texel Rate

The GeForce GTX 460 will be much (about 144%) more effective at texture filtering than the Radeon HD 5670. (explain)

GeForce GTX 460		37800 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 22300 (144%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 460 is superior to the Radeon HD 5670, by far. (explain)

GeForce GTX 460		16200 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 10000 (161%)

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 maximum amount of information (counted in MB per second) that can be moved across the external memory interface within a second. The number is worked out by multiplying the bus width by its memory speed. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

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