 |
 |
Radeon HD 5870 vs Radeon HD 7950
Intro
The Radeon HD 5870 comes with a core clock speed of 850 MHz and a GDDR5 memory frequency of 1200 MHz. It also features a 256-bit memory bus, and makes use of a 40 nm design. It is made up of 1600(320x5) SPUs, 80 Texture Address Units, and 32 Raster Operation Units.Compare all that to the Radeon HD 7950, which features a GPU core clock speed of 800 MHz, and 1536 MB of GDDR5 RAM running at 1250 MHz through a 384-bit bus. It also features 1792 Stream Processors, 112 Texture Address Units, and 32 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 5870 |
|
188 Watts |
| Radeon HD 7950 |
|
200 Watts |
|
|
Memory Bandwidth
Theoretically speaking, the Radeon HD 7950 should be 56% faster than the Radeon HD 5870 overall, because of its greater bandwidth. (explain)
| Radeon HD 7950 |
|
240000 MB/sec |
| Radeon HD 5870 |
|
153600 MB/sec |
|
|
Texel Rate
The Radeon HD 7950 will be a lot (about 32%) faster with regards to AF than the Radeon HD 5870. (explain)| Radeon HD 7950 |
|
89600 Mtexels/sec |
| Radeon HD 5870 |
|
68000 Mtexels/sec |
|
|
Pixel Rate
If using high levels of AA is important to you, then the Radeon HD 5870 is the winner, but it probably won't make a huge difference. (explain)| Radeon HD 5870 |
|
27200 Mpixels/sec |
| Radeon HD 7950 |
|
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 5870Amazon.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.
Specifications
| Model | Radeon HD 5870 | Radeon HD 7950 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | September 23, 2009 | January 2012 |
| Code Name | Cypress XT | Tahiti Pro |
| Memory | 1024 MB | 1536 MB |
| Core Speed | 850 MHz | 800 MHz |
| Memory Speed | 4800 MHz | 5000 MHz |
| Power (Max TDP) | 188 watts | 200 watts |
| Bandwidth | 153600 MB/sec | 240000 MB/sec |
| Texel Rate | 68000 Mtexels/sec | 89600 Mtexels/sec |
| Pixel Rate | 27200 Mpixels/sec | 25600 Mpixels/sec |
| Unified Shaders | 1600(320x5) | 1792 |
| Texture Mapping Units | 80 | 112 |
| Render Output Units | 32 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 384-bit |
| Fab Process | 40 nm | 28 nm |
| Transistors | 2154 million | 4313 million |
| Bus | PCIe 2.1 x16 | PCIe 3.0 x16 |
| DirectX Version | DirectX 11 | DirectX 11.1 |
| OpenGL Version | OpenGL 3.2 | OpenGL 4.2 |
Memory Bandwidth: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the bus width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's 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 texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.
Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.
Radeon HD 5870Amazon.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
One Response to “Radeon HD 5870 vs Radeon HD 7950”[...] que se arreglen las cosas si han pactado precios y fechas. A comparar 5870 vs 7950 por ejemplo Radeon HD 5870 vs Radeon HD 7950 – Performance Comparison Benchmarks @ Hardware Compare 5870 vs 6950 2gb Radeon HD 5870 vs Radeon HD 6950 2GB – Performance Comparison Benchmarks @ [...]