GeForce GTX 560 Ti 448 vs Radeon HD 7970

Intro

Compare those specifications to the Radeon HD 7970, which comes with a clock frequency of 925 MHz and a GDDR5 memory frequency of 1375 MHz. It also features a 384-bit bus, and makes use of a 28 nm design. It is comprised of 2048 SPUs, 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

The Radeon HD 7970, in theory, should be quite a bit faster than the GeForce GTX 560 Ti 448 overall. (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 quite a bit (more or less 189%) faster with regards to AF 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

If using a high screen resolution is important to you, then the Radeon HD 7970 is superior to the GeForce GTX 560 Ti 448, though not by far. (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 max amount of data (in units of MB per second) that can be transferred across the external memory interface in one second. It's calculated by multiplying the interface width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated 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 outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.