Radeon HD 5850 vs Radeon HD 6570 (OEM) 1GB

Intro

Compare that to the Radeon HD 6570 (OEM) 1GB, which uses a 40 nm design. AMD has set the core speed at 650 MHz. The GDDR3 RAM is set to run at a frequency of 900 MHz on this particular model. It features 480 SPUs along with 24 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 1GB		50 Watts
Radeon HD 5850		151 Watts
	Difference: 101 Watts (202%)

Memory Bandwidth

The Radeon HD 5850 should theoretically be a lot faster than the Radeon HD 6570 (OEM) 1GB in general. (explain)

Radeon HD 5850		128000 MB/sec
Radeon HD 6570 (OEM) 1GB		28800 MB/sec
	Difference: 99200 (344%)

Texel Rate

The Radeon HD 5850 will be quite a bit (approximately 235%) faster with regards to anisotropic filtering than the Radeon HD 6570 (OEM) 1GB. (explain)

Radeon HD 5850		52200 Mtexels/sec
Radeon HD 6570 (OEM) 1GB		15600 Mtexels/sec
	Difference: 36600 (235%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 5850 is the winner, and very much so. (explain)

Radeon HD 5850		23200 Mpixels/sec
Radeon HD 6570 (OEM) 1GB		5200 Mpixels/sec
	Difference: 18000 (346%)

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 moved across the external memory interface in one second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the 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 chip can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of 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 rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.