GeForce GTX 560 Ti vs Radeon HD 7770

Intro

Compare all that to the Radeon HD 7770, which comes with GPU core speed of 1000 MHz, and 1024 MB of GDDR5 memory running at 1125 MHz through a 128-bit bus. It also is made up of 640 SPUs, 40 TAUs, 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

The GeForce GTX 560 Ti should theoretically be a lot faster than the Radeon HD 7770 overall. (explain)

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

Texel Rate

The GeForce GTX 560 Ti is quite a bit (approximately 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

The GeForce GTX 560 Ti is quite a bit (approximately 64%) faster with regards to anti-aliasing than the Radeon HD 7770, and also should be capable of handling higher screen resolutions while still performing well. (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: Memory bandwidth is the largest amount of data (in units of megabytes per second) that can be transported over the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.