GeForce GTX 560 vs Radeon HD 5770

Intro

Compare all of that to the Radeon HD 5770, which features core clock speeds of 850 MHz on the GPU, and 1200 MHz on the 1024 MB of GDDR5 RAM. It features 800(160x5) SPUs as well as 40 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5770		108 Watts
GeForce GTX 560		150 Watts
	Difference: 42 Watts (39%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 560 should perform much faster than the Radeon HD 5770 in general. (explain)

GeForce GTX 560		128128 MB/sec
Radeon HD 5770		76800 MB/sec
	Difference: 51328 (67%)

Texel Rate

The GeForce GTX 560 should be quite a bit (approximately 33%) more effective at anisotropic filtering than the Radeon HD 5770. (explain)

GeForce GTX 560		45360 Mtexels/sec
Radeon HD 5770		34000 Mtexels/sec
	Difference: 11360 (33%)

Pixel Rate

The GeForce GTX 560 will be much (more or less 91%) faster with regards to full screen anti-aliasing than the Radeon HD 5770, and should be capable of handling higher resolutions better. (explain)

GeForce GTX 560		25920 Mpixels/sec
Radeon HD 5770		13600 Mpixels/sec
	Difference: 12320 (91%)

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 data (in units of MB per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called 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, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.