GeForce GTX Titan Black vs Radeon HD 7970

Intro

Compare those specs to the Radeon HD 7970, which features clock speeds of 925 MHz on the GPU, and 1375 MHz on the 3072 MB of GDDR5 memory. It features 2048 SPUs as well as 128 TAUs and 32 Rasterization Operator 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

GeForce GTX Titan Black		11666 points
Radeon HD 7970		8225 points
	Difference: 3441 (42%)

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

In theory, the GeForce GTX Titan Black should be 27% quicker than the Radeon HD 7970 overall, due to its greater bandwidth. (explain)

GeForce GTX Titan Black		336000 MB/sec
Radeon HD 7970		264000 MB/sec
	Difference: 72000 (27%)

Texel Rate

The GeForce GTX Titan Black should be much (approximately 80%) more effective at AF than the Radeon HD 7970. (explain)

GeForce GTX Titan Black		213360 Mtexels/sec
Radeon HD 7970		118400 Mtexels/sec
	Difference: 94960 (80%)

Pixel Rate

The GeForce GTX Titan Black will be a lot (about 44%) better at anti-aliasing than the Radeon HD 7970, and should be able to handle higher screen resolutions better. (explain)

GeForce GTX Titan Black		42672 Mpixels/sec
Radeon HD 7970		29600 Mpixels/sec
	Difference: 13072 (44%)

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 max amount of information (in units of megabytes per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the interface width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total number of texture units of the card by the core clock 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 applied in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.