GeForce GTX Titan vs Radeon HD 5970

Intro

Compare that to the Radeon HD 5970, which has GPU clock speed of 725 MHz, and 1024 MB of GDDR5 memory set to run at 1000 MHz through a 256-bit bus. It also features 1600 Stream Processors, 160 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX Titan		250 Watts
Radeon HD 5970		294 Watts
	Difference: 44 Watts (18%)

Memory Bandwidth

In theory, the GeForce GTX Titan will be 13% quicker than the Radeon HD 5970 overall, due to its greater data rate. (explain)

GeForce GTX Titan		288384 MB/sec
Radeon HD 5970		256000 MB/sec
	Difference: 32384 (13%)

Texel Rate

The Radeon HD 5970 will be a lot (approximately 24%) faster with regards to AF than the GeForce GTX Titan. (explain)

Radeon HD 5970		232000 Mtexels/sec
GeForce GTX Titan		187488 Mtexels/sec
	Difference: 44512 (24%)

Pixel Rate

The Radeon HD 5970 should be a lot (about 131%) better at AA than the GeForce GTX Titan, and should be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon HD 5970		92800 Mpixels/sec
GeForce GTX Titan		40176 Mpixels/sec
	Difference: 52624 (131%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be transported across the external memory interface within a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better 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 amount of texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.