GeForce GTX 980 vs Radeon HD 5570

Intro

Compare those specs to the Radeon HD 5570, which has core speeds of 650 MHz on the GPU, and 900 MHz on the 512 MB of DDR3 RAM. It features 400(80x5) SPUs along with 20 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570		43 Watts
GeForce GTX 980		165 Watts
	Difference: 122 Watts (284%)

Memory Bandwidth

The GeForce GTX 980, in theory, should perform much faster than the Radeon HD 5570 overall. (explain)

GeForce GTX 980		224000 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 195200 (678%)

Texel Rate

The GeForce GTX 980 should be a lot (more or less 1009%) faster with regards to anisotropic filtering than the Radeon HD 5570. (explain)

GeForce GTX 980		144128 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 131128 (1009%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 980 is a better choice, and very much so. (explain)

GeForce GTX 980		72064 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 66864 (1286%)

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 information (counted in megabytes per second) that can be transferred over the external memory interface in a second. It's worked out by multiplying the bus width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better 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 number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.