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Radeon HD 6950 vs Radeon HD 6950 2GB

Intro

The Radeon HD 6950 has a GPU clock speed of 800 MHz, and the 1024 MB of GDDR5 memory is set to run at 1250 MHz through a 256-bit bus. It also is made up of 1408 Stream Processors, 88 Texture Address Units, and 32 Raster Operation Units.

Compare that to the Radeon HD 6950 2GB, which uses a 40 nm design. AMD has clocked the core frequency at 800 MHz. The GDDR5 RAM is set to run at a speed of 1250 MHz on this specific card. It features 1408 SPUs along with 88 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Both cards have the exact same memory bandwidth, so in theory they should perform the same. (explain)

Texel Rate

Both cards have exactly the same texel fill rate, so in theory they should be equally good at at anisotropic filtering. (explain)

Pixel Rate

Both cards have the exact same pixel rate, so in theory they should be equally good at at full screen anti-aliasing, and be able to handle the same screen resolutions. (explain)

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

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Radeon HD 6950

Amazon.com

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Radeon HD 6950 2GB

Amazon.com

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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

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Model Radeon HD 6950 Radeon HD 6950 2GB
Manufacturer AMD AMD
Year December 2010 December 2010
Code Name Cayman Pro Cayman Pro
Memory 1024 MB 2048 MB
Core Speed 800 MHz 800 MHz
Memory Speed 5000 MHz 5000 MHz
Power (Max TDP) 200 watts 200 watts
Bandwidth 160000 MB/sec 160000 MB/sec
Texel Rate 70400 Mtexels/sec 70400 Mtexels/sec
Pixel Rate 25600 Mpixels/sec 25600 Mpixels/sec
Unified Shaders 1408 1408
Texture Mapping Units 88 88
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 2640 million 2640 million
Bus PCIe x16 PCIe x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Bandwidth is the maximum amount of data (measured in megabytes per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total number of texture units by the core 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 amount of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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Radeon HD 6950

Amazon.com

Check prices at:

Radeon HD 6950 2GB

Amazon.com

Check prices at:

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.

Comments

12 Responses to “Radeon HD 6950 vs Radeon HD 6950 2GB”
Anonymous says:

[...] [...]

Anonymous says:

1 fps isnt much of a difference.

djzorlag says:

Remember that 2gb -version can be modded into 6970 so then it is much faster than 6950. 🙂

roflzor says:

hahaha it's obvious this site is soooo pro nvidia!!!!

because these benchmarks are pure bullsh*t!!! you go on other sites and you clearly see the 6950 is better on these games except for dirt 2 the 560ti does ~2 fps better than the 560ti

so this is really bullsh*t!

Gigabyte Radeon HD 6950 Core 870MHz VS Club 3d Radeon HD 6950 Core 800MHz says:

[...] 870MHz VS Club 3d Radeon HD 6950 Core 800M Maggiori GB non vuol dire maggiori prestazioni (Click) Coming Soon... Rispondi [...]

zack says:

This is a load of CRAP!!!

I Own both cards & 6950 is way better in performance than 560ti PLUS you can also bios hack 6950 into a 6970.

Compare it with a 570 will rather be a very different Story.

MXM says:

ati is the best >> 😀 >

MXM says:

ati 6950 2gb faster than card of 1gp i have 1gp lol hhh xd >>>:D

jimmy9082 says:

2gb is faster ,when the resolution is higher

bf3 use 1.5 gb videomemory---->
with 1gb version lagging the game with higher res

فروش فوقالعاده یک فروند 6950 says:

[...] AA = very hgih دز ضمن حداقل 80 تومن بین 1gb , 2gb اختلاف قیمت هستش Radeon HD 6950 vs Radeon HD 6950 2GB – Performance Comparison Benchmarks @ Hardware Compare قابل توجه شما دوست عزیز تمام تست ها هم در رزولوشن [...]

larsv12 says:

HWCompare has created a site that is based on half-truths, skewed data / cherry-picked data and misinformation. Benchmarks are false measures of true performance. These cards will NOT behave the same performance (as this HWC page wrongly concludes) in real world scenarios. The 1GB version will bottleneck at high-resolutions, while the 6950 2GB will be able to easily buffer more graphical data without raw (fps) performance degradation.

larsv12 says:

EDIT previous post: should read, "without the same level of raw (fps) performance degradation." ;P

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