GeForce GTX 560 Ti vs Radeon HD 7870

Intro

Compare all that to the Radeon HD 7870, which comes with a GPU core clock speed of 1000 MHz, and 2048 MB of GDDR5 memory set to run at 1200 MHz through a 256-bit bus. It also is comprised of 1280 Stream Processors, 80 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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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 7870		6230 points
GeForce GTX 560 Ti		3466 points
	Difference: 2764 (80%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 560 Ti		170 Watts
Radeon HD 7870		175 Watts
	Difference: 5 Watts (3%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 7870 should be a little bit faster than the GeForce GTX 560 Ti overall. (explain)

Radeon HD 7870		153600 MB/sec
GeForce GTX 560 Ti		128256 MB/sec
	Difference: 25344 (20%)

Texel Rate

The Radeon HD 7870 should be much (about 52%) faster with regards to AF than the GeForce GTX 560 Ti. (explain)

Radeon HD 7870		80000 Mtexels/sec
GeForce GTX 560 Ti		52608 Mtexels/sec
	Difference: 27392 (52%)

Pixel Rate

The Radeon HD 7870 should be a lot (approximately 22%) faster with regards to anti-aliasing than the GeForce GTX 560 Ti, and also capable of handling higher screen resolutions while still performing well. (explain)

Radeon HD 7870		32000 Mpixels/sec
GeForce GTX 560 Ti		26304 Mpixels/sec
	Difference: 5696 (22%)

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 information (counted in MB per second) that can be transferred across the external memory interface in a second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better 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 are processed in one second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the video 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 amount of pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of 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 fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.