GeForce GTX 980 vs Radeon HD 5670

Intro

Compare those specifications to the Radeon HD 5670, which has GPU core speed of 775 MHz, and 1024 MB of GDDR5 memory running at 1000 MHz through a 128-bit bus. It also is comprised of 400(80x5) SPUs, 20 TAUs, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670		61 Watts
GeForce GTX 980		165 Watts
	Difference: 104 Watts (170%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 980 should perform a lot faster than the Radeon HD 5670 in general. (explain)

GeForce GTX 980		224000 MB/sec
Radeon HD 5670		64000 MB/sec
	Difference: 160000 (250%)

Texel Rate

The GeForce GTX 980 is much (approximately 830%) more effective at anisotropic filtering than the Radeon HD 5670. (explain)

GeForce GTX 980		144128 Mtexels/sec
Radeon HD 5670		15500 Mtexels/sec
	Difference: 128628 (830%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 980 is the winner, by a large margin. (explain)

GeForce GTX 980		72064 Mpixels/sec
Radeon HD 5670		6200 Mpixels/sec
	Difference: 65864 (1062%)

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 largest amount of data (counted in megabytes per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 amount of texture map elements (texels) that are applied in one second. This is calculated 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 handling 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 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 ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.