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Radeon HD 6950 2GB vs Radeon HD 7870
Intro
The Radeon HD 6950 2GB features a GPU core clock speed of 800 MHz, and the 2048 MB of GDDR5 memory is set to run at 1250 MHz through a 256-bit bus. It also is comprised of 1408 SPUs, 88 Texture Address Units, and 32 ROPs.Compare those specifications to the Radeon HD 7870, which features core speeds of 1000 MHz on the GPU, and 1200 MHz on the 2048 MB of GDDR5 memory. It features 1280 SPUs as well as 80 TAUs and 32 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 7870 |
|
175 Watts |
| Radeon HD 6950 2GB |
|
200 Watts |
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Memory Bandwidth
The Radeon HD 6950 2GB, in theory, should perform a small bit faster than the Radeon HD 7870 in general. (explain)
| Radeon HD 6950 2GB |
|
160000 MB/sec |
| Radeon HD 7870 |
|
153600 MB/sec |
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Texel Rate
The Radeon HD 7870 will be a little bit (about 14%) faster with regards to anisotropic filtering than the Radeon HD 6950 2GB. (explain)| Radeon HD 7870 |
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80000 Mtexels/sec |
| Radeon HD 6950 2GB |
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70400 Mtexels/sec |
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Pixel Rate
The Radeon HD 7870 will be quite a bit (more or less 25%) more effective at FSAA than the Radeon HD 6950 2GB, and also capable of handling higher resolutions without losing too much performance. (explain)| Radeon HD 7870 |
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32000 Mpixels/sec |
| Radeon HD 6950 2GB |
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25600 Mpixels/sec |
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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 2GBAmazon.com
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Radeon HD 7870Amazon.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 2GB | Radeon HD 7870 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | December 2010 | March 2012 |
| Code Name | Cayman Pro | Pitcairn XT |
| Memory | 2048 MB | 2048 MB |
| Core Speed | 800 MHz | 1000 MHz |
| Memory Speed | 5000 MHz | 4800 MHz |
| Power (Max TDP) | 200 watts | 175 watts |
| Bandwidth | 160000 MB/sec | 153600 MB/sec |
| Texel Rate | 70400 Mtexels/sec | 80000 Mtexels/sec |
| Pixel Rate | 25600 Mpixels/sec | 32000 Mpixels/sec |
| Unified Shaders | 1408 | 1280 |
| Texture Mapping Units | 88 | 80 |
| Render Output Units | 32 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 256-bit |
| Fab Process | 40 nm | 28 nm |
| Transistors | 2640 million | 2800 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 moved past the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are 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 this number, the better the graphics card will be at 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 record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel 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 max fill rate.
Radeon HD 6950 2GBAmazon.com
Check prices at:
|
Radeon HD 7870Amazon.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
One Response to “Radeon HD 6950 2GB vs Radeon HD 7870”With the 7870s OC abilities it does surpass the 6950 by large margins, granted it has less TPU and SPUs but it can clock to 1250 mhz mem and 1200+ Core Clocks. I got a 7870 as an upgrade to my 6950, and I'm happy :3