GeForce GTX 460 vs Radeon HD 6770 1GB

Intro

Compare that to the Radeon HD 6770 1GB, which has core speeds of 900 MHz on the GPU, and 1050 MHz on the 1024 MB of GDDR5 RAM. It features 800 SPUs along with 40 TAUs and 16 ROPs.

Display Graphs

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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

In theory, the GeForce GTX 460 is 29% quicker than the Radeon HD 6770 1GB in general, due to its higher bandwidth. (explain)

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

Texel Rate

The GeForce GTX 460 will be just a bit (more or less 5%) faster with regards to texture filtering 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 should be a little bit (about 13%) faster with regards to anti-aliasing than the Radeon HD 6770 1GB, and will be capable of handling higher screen resolutions better. (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: Bandwidth is the largest amount of data (counted in MB per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the interface width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the 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 amount of texture map elements (texels) that are processed per second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines 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 rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.