GeForce GTX Titan vs Radeon HD 7970

Intro

Compare all of that to the Radeon HD 7970, which features clock speeds of 925 MHz on the GPU, and 1375 MHz on the 3072 MB of GDDR5 RAM. 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		10162 points
Radeon HD 7970		8225 points
	Difference: 1937 (24%)

Grand Theft Auto V | 1920x1080 | Very High

GeForce GTX Titan		52 FPS
Radeon HD 7970		37 FPS
	Difference: 15 (41%)

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Theoretically speaking, the GeForce GTX Titan should be 9% quicker than the Radeon HD 7970 in general, because of its greater data rate. (explain)

GeForce GTX Titan		288384 MB/sec
Radeon HD 7970		264000 MB/sec
	Difference: 24384 (9%)

Texel Rate

The GeForce GTX Titan will be much (about 58%) better at anisotropic filtering than the Radeon HD 7970. (explain)

GeForce GTX Titan		187488 Mtexels/sec
Radeon HD 7970		118400 Mtexels/sec
	Difference: 69088 (58%)

Pixel Rate

The GeForce GTX Titan will be much (approximately 36%) better at FSAA than the Radeon HD 7970, and also will be capable of handling higher resolutions while still performing well. (explain)

GeForce GTX Titan		40176 Mpixels/sec
Radeon HD 7970		29600 Mpixels/sec
	Difference: 10576 (36%)

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 maximum amount of data (counted in MB per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's 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 worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour 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 rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.