GeForce GTX 460 SE vs Radeon HD 5770

Intro

Compare those specs to the Radeon HD 5770, which features GPU clock speed of 850 MHz, and 1024 MB of GDDR5 RAM set to run at 1200 MHz through a 128-bit bus. It also features 800(160x5) Stream Processors, 40 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5770		108 Watts
GeForce GTX 460 SE		150 Watts
	Difference: 42 Watts (39%)

Memory Bandwidth

Theoretically, the GeForce GTX 460 SE should be a lot faster than the Radeon HD 5770 overall. (explain)

GeForce GTX 460 SE		108800 MB/sec
Radeon HD 5770		76800 MB/sec
	Difference: 32000 (42%)

Texel Rate

The Radeon HD 5770 will be a small bit (more or less 9%) faster with regards to anisotropic filtering than the GeForce GTX 460 SE. (explain)

Radeon HD 5770		34000 Mtexels/sec
GeForce GTX 460 SE		31200 Mtexels/sec
	Difference: 2800 (9%)

Pixel Rate

If using a high 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 5770		13600 Mpixels/sec
	Difference: 7200 (53%)

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 data (in units of MB per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory clock speed. In the case of 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 AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.