Radeon HD 6570 (OEM) 1GB vs Radeon HD 6950

Intro

Compare those specs to the Radeon HD 6950, which makes use of a 40 nm design. AMD has clocked the core frequency at 800 MHz. The GDDR5 RAM works at a speed of 1250 MHz on this specific model. It features 1408 SPUs as well as 88 Texture Address Units and 32 Rasterization Operator Units.

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 6950		3240 points
Radeon HD 6570 (OEM) 1GB		850 points
	Difference: 2390 (281%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 1GB		50 Watts
Radeon HD 6950		200 Watts
	Difference: 150 Watts (300%)

Memory Bandwidth

In theory, the Radeon HD 6950 will be 456% faster than the Radeon HD 6570 (OEM) 1GB in general, because of its greater data rate. (explain)

Radeon HD 6950		160000 MB/sec
Radeon HD 6570 (OEM) 1GB		28800 MB/sec
	Difference: 131200 (456%)

Texel Rate

The Radeon HD 6950 is quite a bit (about 351%) faster with regards to anisotropic filtering than the Radeon HD 6570 (OEM) 1GB. (explain)

Radeon HD 6950		70400 Mtexels/sec
Radeon HD 6570 (OEM) 1GB		15600 Mtexels/sec
	Difference: 54800 (351%)

Pixel Rate

The Radeon HD 6950 should be a lot (more or less 392%) more effective at AA than the Radeon HD 6570 (OEM) 1GB, and also will be capable of handling higher screen resolutions better. (explain)

Radeon HD 6950		25600 Mpixels/sec
Radeon HD 6570 (OEM) 1GB		5200 Mpixels/sec
	Difference: 20400 (392%)

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 (measured in megabytes per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, 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 amount 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 higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.