GeForce GTX 460 1GB vs Radeon HD 5670

Intro

Compare all of that to the Radeon HD 5670, which makes use of a 40 nm design. AMD has set the core frequency at 775 MHz. The GDDR5 memory is set to run at a frequency of 1000 MHz on this specific model. It features 400(80x5) SPUs along with 20 Texture Address Units and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670		61 Watts
GeForce GTX 460 1GB		160 Watts
	Difference: 99 Watts (162%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 460 1GB should be much faster than the Radeon HD 5670 overall. (explain)

GeForce GTX 460 1GB		115200 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 51200 (80%)

Texel Rate

The GeForce GTX 460 1GB is much (approximately 144%) better at anisotropic filtering than the Radeon HD 5670. (explain)

GeForce GTX 460 1GB		37800 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 22300 (144%)

Pixel Rate

The GeForce GTX 460 1GB should be quite a bit (about 248%) more effective at AA than the Radeon HD 5670, and should be capable of handling higher resolutions more effectively. (explain)

GeForce GTX 460 1GB		21600 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 15400 (248%)

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 data (measured in megabytes per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's 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 number of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, 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 number of pixels that the graphics chip could possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.