Radeon HD 6570 (OEM) 1GB vs Radeon HD 6850

Intro

Compare those specs to the Radeon HD 6850, which features GPU clock speed of 775 MHz, and 1024 MB of GDDR5 memory running at 1000 MHz through a 256-bit bus. It also is made up of 960 Stream Processors, 48 Texture Address Units, and 32 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon HD 6850		2395 points
Radeon HD 6570 (OEM) 1GB		850 points
	Difference: 1545 (182%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 1GB		50 Watts
Radeon HD 6850		127 Watts
	Difference: 77 Watts (154%)

Memory Bandwidth

As far as performance goes, the Radeon HD 6850 should in theory be quite a bit superior to the Radeon HD 6570 (OEM) 1GB in general. (explain)

Radeon HD 6850		128000 MB/sec
Radeon HD 6570 (OEM) 1GB		28800 MB/sec
	Difference: 99200 (344%)

Texel Rate

The Radeon HD 6850 is quite a bit (approximately 138%) more effective at AF than the Radeon HD 6570 (OEM) 1GB. (explain)

Radeon HD 6850		37200 Mtexels/sec
Radeon HD 6570 (OEM) 1GB		15600 Mtexels/sec
	Difference: 21600 (138%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 6850 is superior to the Radeon HD 6570 (OEM) 1GB, by far. (explain)

Radeon HD 6850		24800 Mpixels/sec
Radeon HD 6570 (OEM) 1GB		5200 Mpixels/sec
	Difference: 19600 (377%)

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 information (measured in megabytes per second) that can be moved over the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, 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 texture map elements (texels) that are processed per second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the card's clock speed. 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 is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.