 |
 |
Radeon HD 6870 vs Radeon HD 6950 2GB
Intro
The Radeon HD 6870 comes with a clock speed of 900 MHz and a GDDR5 memory speed of 1050 MHz. It also uses a 256-bit memory bus, and makes use of a 40 nm design. It features 1120 SPUs, 56 TAUs, and 32 Raster Operation Units.Compare all of that to the Radeon HD 6950 2GB, which uses a 40 nm design. AMD has clocked the core speed at 800 MHz. The GDDR5 RAM is set to run at a speed of 1250 MHz on this particular model. It features 1408 SPUs along with 88 TAUs and 32 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6870 |
|
151 Watts |
| Radeon HD 6950 2GB |
|
200 Watts |
|
|
Memory Bandwidth
As far as performance goes, the Radeon HD 6950 2GB should theoretically be just a bit better than the Radeon HD 6870 in general. (explain)
| Radeon HD 6950 2GB |
|
160000 MB/sec |
| Radeon HD 6870 |
|
134400 MB/sec |
|
|
Texel Rate
The Radeon HD 6950 2GB should be much (approximately 40%) more effective at texture filtering than the Radeon HD 6870. (explain)| Radeon HD 6950 2GB |
|
70400 Mtexels/sec |
| Radeon HD 6870 |
|
50400 Mtexels/sec |
|
|
Pixel Rate
The Radeon HD 6870 is a small bit (approximately 13%) better at anti-aliasing than the Radeon HD 6950 2GB, and also should be able to handle higher screen resolutions while still performing well. (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: Memory bandwidth is the largest amount of data (measured in megabytes per second) that can be transferred over the external memory interface in a second. It is worked out by multiplying the bus width by its memory speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total texture units 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 maximum number of pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to 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 [...]