GeForce GTX 560 Ti vs Radeon HD 7770

Intro

Compare those specifications to the Radeon HD 7770, which has a core clock speed of 1000 MHz and a GDDR5 memory speed of 1125 MHz. It also features a 128-bit bus, and makes use of a 28 nm design. It features 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

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

GeForce GTX 560 Ti		3466 points
Radeon HD 7770		3180 points
	Difference: 286 (9%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7770		80 Watts
GeForce GTX 560 Ti		170 Watts
	Difference: 90 Watts (113%)

Memory Bandwidth

Performance-wise, the GeForce GTX 560 Ti should in theory be quite a bit better than the Radeon HD 7770 in general. (explain)

GeForce GTX 560 Ti		128256 MB/sec
Radeon HD 7770		72000 MB/sec
	Difference: 56256 (78%)

Texel Rate

The GeForce GTX 560 Ti should be much (about 32%) more effective at anisotropic filtering than the Radeon HD 7770. (explain)

GeForce GTX 560 Ti		52608 Mtexels/sec
Radeon HD 7770		40000 Mtexels/sec
	Difference: 12608 (32%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 560 Ti is superior to the Radeon HD 7770, by far. (explain)

GeForce GTX 560 Ti		26304 Mpixels/sec
Radeon HD 7770		16000 Mpixels/sec
	Difference: 10304 (64%)

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 (in units of MB per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.