Geforce GTX 770 vs Radeon HD 5570

Intro

Compare those specifications to the Radeon HD 5570, which has a core clock frequency of 650 MHz and a DDR3 memory frequency of 900 MHz. It also features a 128-bit memory bus, and makes use of a 40 nm design. It is made up of 400(80x5) SPUs, 20 Texture Address Units, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570		43 Watts
Geforce GTX 770		230 Watts
	Difference: 187 Watts (435%)

Memory Bandwidth

As far as performance goes, the Geforce GTX 770 should in theory be a lot better than the Radeon HD 5570 in general. (explain)

Geforce GTX 770		224384 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 195584 (679%)

Texel Rate

The Geforce GTX 770 should be a lot (more or less 930%) more effective at texture filtering than the Radeon HD 5570. (explain)

Geforce GTX 770		133888 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 120888 (930%)

Pixel Rate

The Geforce GTX 770 should be quite a bit (more or less 544%) more effective at anti-aliasing than the Radeon HD 5570, and will be able to handle higher resolutions while still performing well. (explain)

Geforce GTX 770		33472 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 28272 (544%)

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 max amount of data (counted in megabytes per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the interface width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 once again. If it uses 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 high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This number is calculated by multiplying the total number of texture units 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 video card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called 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, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.