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Radeon HD 6950 vs Radeon HD 7950
Intro
The Radeon HD 6950 comes with a core clock speed of 800 MHz and a GDDR5 memory frequency of 1250 MHz. It also features a 256-bit bus, and makes use of a 40 nm design. It is comprised of 1408 SPUs, 88 TAUs, and 32 ROPs.Compare those specifications to the Radeon HD 7950, which features a GPU core clock speed of 800 MHz, and 1536 MB of GDDR5 RAM set to run at 1250 MHz through a 384-bit bus. It also is made up of 1792 Stream Processors, 112 Texture Address Units, and 32 ROPs.
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 7950 |
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7731 points |
| Radeon HD 6950 |
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3240 points |
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Power Usage and Theoretical Benchmarks
Both cards have the same power consumption.Memory Bandwidth
The Radeon HD 7950 should in theory be quite a bit faster than the Radeon HD 6950 in general. (explain)
| Radeon HD 7950 |
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240000 MB/sec |
| Radeon HD 6950 |
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160000 MB/sec |
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Texel Rate
The Radeon HD 7950 should be quite a bit (more or less 27%) better at anisotropic filtering than the Radeon HD 6950. (explain)| Radeon HD 7950 |
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89600 Mtexels/sec |
| Radeon HD 6950 |
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70400 Mtexels/sec |
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Pixel Rate
Both cards have exactly the same pixel fill rate, so theoretically they should be equally good at at AA, and be able to handle the same 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
Radeon HD 6950Amazon.com
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Radeon HD 7950Amazon.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
| Model | Radeon HD 6950 | Radeon HD 7950 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | December 2010 | January 2012 |
| Code Name | Cayman Pro | Tahiti Pro |
| Memory | 1024 MB | 1536 MB |
| Core Speed | 800 MHz | 800 MHz |
| Memory Speed | 5000 MHz | 5000 MHz |
| Power (Max TDP) | 200 watts | 200 watts |
| Bandwidth | 160000 MB/sec | 240000 MB/sec |
| Texel Rate | 70400 Mtexels/sec | 89600 Mtexels/sec |
| Pixel Rate | 25600 Mpixels/sec | 25600 Mpixels/sec |
| Unified Shaders | 1408 | 1792 |
| Texture Mapping Units | 88 | 112 |
| Render Output Units | 32 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 384-bit |
| Fab Process | 40 nm | 28 nm |
| Transistors | 2640 million | 4313 million |
| Bus | PCIe x16 | PCIe 3.0 x16 |
| DirectX Version | DirectX 11 | DirectX 11.1 |
| OpenGL Version | OpenGL 4.1 | OpenGL 4.2 |
Memory Bandwidth: Bandwidth is the max amount of information (in units of megabytes per second) that can be transferred across the external memory interface in a second. It's worked out by multiplying the interface width by its memory speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better 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 processed in one second. This figure 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 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 record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.
Radeon HD 6950Amazon.com
Check prices at:
|
Radeon HD 7950Amazon.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
3 Responses to “Radeon HD 6950 vs Radeon HD 7950”both are great cards with respect to their bandwith and raster operations
[...] Radeon HD 6950 vs Radeon HD 7950 – Performance Comparison Benchmarks @ Hardware Compare What applications are you using? Like others have said, if squeezing out out every last FPS you can and benchmarks are important to you, it'll be an improvement. Doubt you'll see much of a noticeable improvement outside of that in most real-world applications. But if you have money to burn, go for what makes you happy. [...]
yaa but who are the best ?!! Radeon HD 6950 vs Radeon HD 7950 ?!?!