GeForce GTX 460 SE vs Radeon HD 6770 1GB

Intro

Compare those specs to the Radeon HD 6770 1GB, which makes use of a 40 nm design. AMD has clocked the core frequency at 900 MHz. The GDDR5 memory is set to run at a speed of 1050 MHz on this specific model. 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 SE		150 Watts
	Difference: 42 Watts (39%)

Memory Bandwidth

In theory, the GeForce GTX 460 SE should be quite a bit faster than the Radeon HD 6770 1GB overall. (explain)

GeForce GTX 460 SE		108800 MB/sec
Radeon HD 6770 1GB		67200 MB/sec
	Difference: 41600 (62%)

Texel Rate

The Radeon HD 6770 1GB should be a bit (approximately 15%) faster with regards to anisotropic filtering than the GeForce GTX 460 SE. (explain)

Radeon HD 6770 1GB		36000 Mtexels/sec
GeForce GTX 460 SE		31200 Mtexels/sec
	Difference: 4800 (15%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 460 SE is a better choice, by a large margin. (explain)

GeForce GTX 460 SE		20800 Mpixels/sec
Radeon HD 6770 1GB		14400 Mpixels/sec
	Difference: 6400 (44%)

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 (measured in megabytes per second) that can be moved over the external memory interface within a second. It is worked out by multiplying the interface width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the 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 maximum number of pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.