GeForce GTX 650 Ti vs Radeon HD 5970

Intro

Compare that to the Radeon HD 5970, which features GPU clock speed of 725 MHz, and 1024 MB of GDDR5 memory running at 1000 MHz through a 256-bit bus. It also features 1600 SPUs, 160 TAUs, and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti		110 Watts
Radeon HD 5970		294 Watts
	Difference: 184 Watts (167%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5970 is 196% faster than the GeForce GTX 650 Ti overall, due to its higher data rate. (explain)

Radeon HD 5970		256000 MB/sec
GeForce GTX 650 Ti		86400 MB/sec
	Difference: 169600 (196%)

Texel Rate

The Radeon HD 5970 is much (about 291%) faster with regards to anisotropic filtering than the GeForce GTX 650 Ti. (explain)

Radeon HD 5970		232000 Mtexels/sec
GeForce GTX 650 Ti		59392 Mtexels/sec
	Difference: 172608 (291%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon HD 5970 is the winner, by far. (explain)

Radeon HD 5970		92800 Mpixels/sec
GeForce GTX 650 Ti		14848 Mpixels/sec
	Difference: 77952 (525%)

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: Bandwidth is the max amount of information (measured in megabytes per second) that can be moved over the external memory interface in a second. The number is worked out by multiplying the bus width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.