Join Us On Facebook

Compare any two graphics cards:
VS

Radeon HD 6950 vs Radeon HD 7850

Intro

The Radeon HD 6950 makes use of a 40 nm design. AMD has clocked the core frequency at 800 MHz. The GDDR5 RAM runs 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.

Compare all of that to the Radeon HD 7850, which has a GPU core clock speed of 860 MHz, and 2048 MB of GDDR5 memory running at 1200 MHz through a 256-bit bus. It also is made up of 1024 Stream Processors, 64 Texture Address Units, and 32 ROPs.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7850 130 Watts
Radeon HD 6950 200 Watts
Difference: 70 Watts (54%)

Memory Bandwidth

The Radeon HD 6950 should in theory perform a small bit faster than the Radeon HD 7850 overall. (explain)

Radeon HD 6950 160000 MB/sec
Radeon HD 7850 153600 MB/sec
Difference: 6400 (4%)

Texel Rate

The Radeon HD 6950 will be quite a bit (more or less 28%) faster with regards to texture filtering than the Radeon HD 7850. (explain)

Radeon HD 6950 70400 Mtexels/sec
Radeon HD 7850 55040 Mtexels/sec
Difference: 15360 (28%)

Pixel Rate

The Radeon HD 7850 is just a bit (approximately 8%) more effective at anti-aliasing than the Radeon HD 6950, and capable of handling higher screen resolutions more effectively. (explain)

Radeon HD 7850 27520 Mpixels/sec
Radeon HD 6950 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

Radeon HD 6950

Amazon.com

Radeon HD 7850

Amazon.com

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

Model Radeon HD 6950 Radeon HD 7850
Manufacturer AMD AMD
Year December 2010 March 2012
Code Name Cayman Pro Pitcairn Pro
Fab Process 40 nm 28 nm
Bus PCIe x16 PCIe 3.0 x16
Memory 1024 MB 2048 MB
Core Speed 800 MHz 860 MHz
Shader Speed N/A MHz (N/A) MHz
Memory Speed 1250 MHz (5000 MHz effective) 1200 MHz (4800 MHz effective)
Unified Shaders 1408 1024
Texture Mapping Units 88 64
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 4.1 OpenGL 4.2
Power (Max TDP) 200 watts 130 watts
Shader Model 5.0 5.0
Bandwidth 160000 MB/sec 153600 MB/sec
Texel Rate 70400 Mtexels/sec 55040 Mtexels/sec
Pixel Rate 25600 Mpixels/sec 27520 Mpixels/sec

Memory Bandwidth: Bandwidth is the largest amount of data (in units of MB per second) that can be moved across the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 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 AA, High Dynamic Range and higher screen resolutions.

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

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

Comments

2 Responses to “Radeon HD 6950 vs Radeon HD 7850”
[...] im not gg to OC, so i will get the cheapest i found the comparison between HD6950 vs HD7850 here Radeon HD 6950 vs Radeon HD 7850 – Performance Comparison Benchmarks @ Hardware Compare seems like there are some pros and cons for each model, but the power consumption is kinda draw [...]
saad says:
nice graphics card amd hd 6950

Your email address will not be published.


You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

WP-SpamFree by Pole Position Marketing