Radeon HD 5570 vs Radeon HD 7850

Intro

Compare those specifications to the Radeon HD 7850, which has core clock speeds of 860 MHz on the GPU, and 1200 MHz on the 2048 MB of GDDR5 memory. It features 1024 SPUs as well as 64 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570		43 Watts
Radeon HD 7850		130 Watts
	Difference: 87 Watts (202%)

Memory Bandwidth

As far as performance goes, the Radeon HD 7850 should theoretically be quite a bit better than the Radeon HD 5570 in general. (explain)

Radeon HD 7850		153600 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 124800 (433%)

Texel Rate

The Radeon HD 7850 should be quite a bit (about 323%) more effective at anisotropic filtering than the Radeon HD 5570. (explain)

Radeon HD 7850		55040 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 42040 (323%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 7850 is superior to the Radeon HD 5570, by a large margin. (explain)

Radeon HD 7850		27520 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 22320 (429%)

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: Bandwidth is the largest amount of data (counted in MB per second) that can be transferred past the external memory interface in one second. The number is worked out by multiplying the bus width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the 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 worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.