 |
 |
Radeon HD 6870 vs Radeon HD 6950 2GB
Intro
The Radeon HD 6870 uses a 40 nm design. AMD has clocked the core frequency at 900 MHz. The GDDR5 memory runs at a speed of 1050 MHz on this model. It features 1120 SPUs along with 56 TAUs and 32 Rasterization Operator Units.Compare those specs to the Radeon HD 6950 2GB, which comes with GPU core speed of 800 MHz, and 2048 MB of GDDR5 memory set to run at 1250 MHz through a 256-bit bus. It also features 1408 Stream Processors, 88 TAUs, and 32 Raster Operation Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6870 |
|
151 Watts |
| Radeon HD 6950 2GB |
|
200 Watts |
|
|
Memory Bandwidth
Theoretically speaking, the Radeon HD 6950 2GB is 19% faster than the Radeon HD 6870 in general, due to its greater bandwidth. (explain)
| Radeon HD 6950 2GB |
|
160000 MB/sec |
| Radeon HD 6870 |
|
134400 MB/sec |
|
|
Texel Rate
The Radeon HD 6950 2GB is a lot (approximately 40%) faster with regards to anisotropic filtering than the Radeon HD 6870. (explain)| Radeon HD 6950 2GB |
|
70400 Mtexels/sec |
| Radeon HD 6870 |
|
50400 Mtexels/sec |
|
|
Pixel Rate
If using a high resolution is important to you, then the Radeon HD 6870 is the winner, but it probably won't make a huge difference. (explain)| Radeon HD 6870 |
|
28800 Mpixels/sec |
| Radeon HD 6950 2GB |
|
25600 Mpixels/sec |
|
|
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 6870Amazon.com
Check prices at:
|
Radeon HD 6950 2GBAmazon.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.
Specifications
| Model | Radeon HD 6870 | Radeon HD 6950 2GB |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | October 2010 | December 2010 |
| Code Name | Barts XT | Cayman Pro |
| Memory | 1024 MB | 2048 MB |
| Core Speed | 900 MHz | 800 MHz |
| Memory Speed | 4200 MHz | 5000 MHz |
| Power (Max TDP) | 151 watts | 200 watts |
| Bandwidth | 134400 MB/sec | 160000 MB/sec |
| Texel Rate | 50400 Mtexels/sec | 70400 Mtexels/sec |
| Pixel Rate | 28800 Mpixels/sec | 25600 Mpixels/sec |
| Unified Shaders | 1120 | 1408 |
| Texture Mapping Units | 56 | 88 |
| Render Output Units | 32 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 256-bit |
| Fab Process | 40 nm | 40 nm |
| Transistors | 1700 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 largest amount of data (counted in MB per second) that can be transferred past the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.
Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.
Radeon HD 6870Amazon.com
Check prices at:
|
Radeon HD 6950 2GBAmazon.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
2 Responses to “Radeon HD 6870 vs Radeon HD 6950 2GB”[...] Radeon HD 6870 vs Radeon HD 6950 2GB – Performance Comparison Benchmarks @ Hardware Compare Ansich ist sie etwa 5-10% besser (die 6950). Aber du wirst den Unterschied nicht sehen weil du mit [...]
[...] 6950 is better ofcourse.. but just marginally. Here's a real comparisson.. 6870 1gb Vs 6950 2gb : Radeon HD 6870 vs Radeon HD 6950 2GB – Performance Comparison Benchmarks @ Hardware Compare the 6950 seems to be appox 10% better for appox 25% more in price In Aliens Vs Predator.. it's [...]