GeForce GTX 460 vs Radeon HD 6770 1GB

Intro

Compare all of that to the Radeon HD 6770 1GB, which makes use of a 40 nm design. AMD has clocked the core speed at 900 MHz. The GDDR5 RAM runs at a frequency of 1050 MHz on this card. It features 800 SPUs along with 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6770 1GB		108 Watts
GeForce GTX 460		150 Watts
	Difference: 42 Watts (39%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 460 should theoretically be much better than the Radeon HD 6770 1GB in general. (explain)

GeForce GTX 460		86400 MB/sec
Radeon HD 6770 1GB		67200 MB/sec
	Difference: 19200 (29%)

Texel Rate

The GeForce GTX 460 should be a small bit (about 5%) more effective at AF than the Radeon HD 6770 1GB. (explain)

GeForce GTX 460		37800 Mtexels/sec
Radeon HD 6770 1GB		36000 Mtexels/sec
	Difference: 1800 (5%)

Pixel Rate

The GeForce GTX 460 is just a bit (approximately 13%) better at anti-aliasing than the Radeon HD 6770 1GB, and should be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 460		16200 Mpixels/sec
Radeon HD 6770 1GB		14400 Mpixels/sec
	Difference: 1800 (13%)

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 information (counted in MB per second) that can be moved over the external memory interface in one second. The number is calculated by multiplying the bus width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 texture map elements (texels) that are applied in one second. This number 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 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 the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.