GeForce GTX 780 Ti vs Radeon HD 5670

Intro

Compare those specs to the Radeon HD 5670, which uses a 40 nm design. AMD has set the core frequency at 775 MHz. The GDDR5 RAM runs at a frequency of 1000 MHz on this card. It features 400(80x5) SPUs along with 20 TAUs and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670		61 Watts
GeForce GTX 780 Ti		250 Watts
	Difference: 189 Watts (310%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 780 Ti should theoretically be quite a bit better than the Radeon HD 5670 in general. (explain)

GeForce GTX 780 Ti		336000 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 272000 (425%)

Texel Rate

The GeForce GTX 780 Ti is much (about 1255%) faster with regards to AF than the Radeon HD 5670. (explain)

GeForce GTX 780 Ti		210000 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 194500 (1255%)

Pixel Rate

The GeForce GTX 780 Ti is much (more or less 577%) faster with regards to FSAA than the Radeon HD 5670, and also capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 780 Ti		42000 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 35800 (577%)

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: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be transported over the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory speed. If the card has DDR type RAM, the result should 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 are applied per second. This figure is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher 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 video card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core clock speed. 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 lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.