GeForce GTX 560 Ti 448 vs Radeon HD 7970

Intro

Compare those specifications to the Radeon HD 7970, which comes with clock speeds of 925 MHz on the GPU, and 1375 MHz on the 3072 MB of GDDR5 memory. It features 2048 SPUs along with 128 Texture Address Units and 32 ROPs.

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 7970		8225 points
GeForce GTX 560 Ti 448		4200 points
	Difference: 4025 (96%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 560 Ti 448		210 Watts
Radeon HD 7970		250 Watts
	Difference: 40 Watts (19%)

Memory Bandwidth

In theory, the Radeon HD 7970 will be 83% faster than the GeForce GTX 560 Ti 448 overall, due to its greater data rate. (explain)

Radeon HD 7970		264000 MB/sec
GeForce GTX 560 Ti 448		144000 MB/sec
	Difference: 120000 (83%)

Texel Rate

The Radeon HD 7970 is much (more or less 189%) more effective at texture filtering than the GeForce GTX 560 Ti 448. (explain)

Radeon HD 7970		118400 Mtexels/sec
GeForce GTX 560 Ti 448		40992 Mtexels/sec
	Difference: 77408 (189%)

Pixel Rate

The Radeon HD 7970 should be a bit (approximately 1%) more effective at FSAA than the GeForce GTX 560 Ti 448, and also should be capable of handling higher resolutions more effectively. (explain)

Radeon HD 7970		29600 Mpixels/sec
GeForce GTX 560 Ti 448		29280 Mpixels/sec
	Difference: 320 (1%)

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 information (counted in megabytes per second) that can be moved across the external memory interface in one second. The number is worked out by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the 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 are applied per second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

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