GeForce GTX 560 vs Radeon HD 7770

Intro

Compare all that to the Radeon HD 7770, which has core speeds of 1000 MHz on the GPU, and 1125 MHz on the 1024 MB of GDDR5 memory. It features 640 SPUs as well as 40 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon HD 7770		3180 points
GeForce GTX 560		3030 points
	Difference: 150 (5%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7770		80 Watts
GeForce GTX 560		150 Watts
	Difference: 70 Watts (88%)

Memory Bandwidth

In theory, the GeForce GTX 560 will be 78% faster than the Radeon HD 7770 overall, due to its higher bandwidth. (explain)

GeForce GTX 560		128128 MB/sec
Radeon HD 7770		72000 MB/sec
	Difference: 56128 (78%)

Texel Rate

The GeForce GTX 560 will be a bit (approximately 13%) better at texture filtering than the Radeon HD 7770. (explain)

GeForce GTX 560		45360 Mtexels/sec
Radeon HD 7770		40000 Mtexels/sec
	Difference: 5360 (13%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 560 is superior to the Radeon HD 7770, by a large margin. (explain)

GeForce GTX 560		25920 Mpixels/sec
Radeon HD 7770		16000 Mpixels/sec
	Difference: 9920 (62%)

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 max amount of data (in units of MB per second) that can be moved over the external memory interface in one second. It's worked out by multiplying the interface width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated 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 filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.