Radeon HD 7850 vs Radeon HD 7950 3GB

Intro

Compare all that to the Radeon HD 7950 3GB, which features core clock speeds of 800 MHz on the GPU, and 1250 MHz on the 3072 MB of GDDR5 memory. It features 1792 SPUs along with 112 TAUs 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.

Zcash Mining Hash Rate

Radeon HD 7950 3GB		229 Sol/s
Radeon HD 7850		171 Sol/s
	Difference: 58 (34%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7850		130 Watts
Radeon HD 7950 3GB		200 Watts
	Difference: 70 Watts (54%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 7950 3GB should perform much faster than the Radeon HD 7850 in general. (explain)

Radeon HD 7950 3GB		240000 MB/sec
Radeon HD 7850		153600 MB/sec
	Difference: 86400 (56%)

Texel Rate

The Radeon HD 7950 3GB should be a lot (more or less 63%) better at anisotropic filtering than the Radeon HD 7850. (explain)

Radeon HD 7950 3GB		89600 Mtexels/sec
Radeon HD 7850		55040 Mtexels/sec
	Difference: 34560 (63%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 7850 is the winner, but not by far. (explain)

Radeon HD 7850		27520 Mpixels/sec
Radeon HD 7950 3GB		25600 Mpixels/sec
	Difference: 1920 (8%)

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 max amount of data (counted in megabytes per second) that can be transported past the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

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