GeForce GTX Titan vs Radeon HD 7950 3GB

Intro

Compare those specs to the Radeon HD 7950 3GB, which features core clock speeds of 800 MHz on the GPU, and 1250 MHz on the 3072 MB of GDDR5 memory. It features 1792 SPUs along with 112 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7950 3GB		200 Watts
GeForce GTX Titan		250 Watts
	Difference: 50 Watts (25%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX Titan should be a little bit faster than the Radeon HD 7950 3GB in general. (explain)

GeForce GTX Titan		288384 MB/sec
Radeon HD 7950 3GB		240000 MB/sec
	Difference: 48384 (20%)

Texel Rate

The GeForce GTX Titan will be quite a bit (approximately 109%) better at anisotropic filtering than the Radeon HD 7950 3GB. (explain)

GeForce GTX Titan		187488 Mtexels/sec
Radeon HD 7950 3GB		89600 Mtexels/sec
	Difference: 97888 (109%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX Titan is superior to the Radeon HD 7950 3GB, and very much so. (explain)

GeForce GTX Titan		40176 Mpixels/sec
Radeon HD 7950 3GB		25600 Mpixels/sec
	Difference: 14576 (57%)

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 (counted in MB per second) that can be transferred across the external memory interface within a second. It's worked out by multiplying the bus width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to its 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 clock 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 also depends on many 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.