 |
 |
Submit Benchmarks!
Radeon HD 7870 vs Radeon HD 7950 3GB
Intro
The Radeon HD 7870 has a core clock frequency of 1000 MHz and a GDDR5 memory frequency of 1200 MHz. It also uses a 256-bit memory bus, and makes use of a 28 nm design. It is made up of 1280 SPUs, 80 Texture Address Units, and 32 ROPs.Compare those specs to the Radeon HD 7950 3GB, which comes with a clock frequency of 800 MHz and a GDDR5 memory speed of 1250 MHz. It also uses a 384-bit bus, and uses a 28 nm design. It features 1792 SPUs, 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.
Zcash Mining Hash Rate
| Radeon HD 7950 3GB |
|
229 Sol/s |
| Radeon HD 7870 |
|
172 Sol/s |
|
|
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 7870 |
|
175 Watts |
| Radeon HD 7950 3GB |
|
200 Watts |
|
|
Memory Bandwidth
In theory, the Radeon HD 7950 3GB should perform much faster than the Radeon HD 7870 overall. (explain)
| Radeon HD 7950 3GB |
|
240000 MB/sec |
| Radeon HD 7870 |
|
153600 MB/sec |
|
|
Texel Rate
The Radeon HD 7950 3GB is a little bit (about 12%) faster with regards to texture filtering than the Radeon HD 7870. (explain)| Radeon HD 7950 3GB |
|
89600 Mtexels/sec |
| Radeon HD 7870 |
|
80000 Mtexels/sec |
|
|
Pixel Rate
The Radeon HD 7870 will be quite a bit (approximately 25%) better at FSAA than the Radeon HD 7950 3GB, and also able to handle higher screen resolutions without losing too much performance. (explain)| Radeon HD 7870 |
|
32000 Mpixels/sec |
| Radeon HD 7950 3GB |
|
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 7870Amazon.com
Check prices at:
|
Radeon HD 7950 3GBAmazon.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 7870 | Radeon HD 7950 3GB |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | March 2012 | January 2012 |
| Code Name | Pitcairn XT | Tahiti Pro |
| Memory | 2048 MB | 3072 MB |
| Core Speed | 1000 MHz | 800 MHz |
| Memory Speed | 4800 MHz | 5000 MHz |
| Power (Max TDP) | 175 watts | 200 watts |
| Bandwidth | 153600 MB/sec | 240000 MB/sec |
| Texel Rate | 80000 Mtexels/sec | 89600 Mtexels/sec |
| Pixel Rate | 32000 Mpixels/sec | 25600 Mpixels/sec |
| Unified Shaders | 1280 | 1792 |
| Texture Mapping Units | 80 | 112 |
| Render Output Units | 32 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 384-bit |
| Fab Process | 28 nm | 28 nm |
| Transistors | 2800 million | 4313 million |
| Bus | PCIe 3.0 x16 | PCIe 3.0 x16 |
| DirectX Version | DirectX 11.1 | DirectX 11.1 |
| OpenGL Version | OpenGL 4.2 | OpenGL 4.2 |
Memory Bandwidth: Bandwidth is the max amount of data (measured in MB per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 once 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 anti-aliasing, High Dynamic Range and higher screen resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the video 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 the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core 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 many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.
Radeon HD 7870Amazon.com
Check prices at:
|
Radeon HD 7950 3GBAmazon.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 7870 vs Radeon HD 7950 3GB”[...] be oc'ed around 1100/1600 to get 60 fps (Ultra Settings) in BF3 and your card is < than a 7950 Radeon HD 7870 vs Radeon HD 7950 3GB – Performance Comparison Benchmarks @ Hardware Compare Reply With Quote « Previous Thread | Next Thread [...]
Alright, so I have a single 1080p display. I want the better video card to max out any games with. I'm not really that interested in AA but I'd sure like to max it out. I'm ready to pay up anything for any build/model of those 2 cards (DD, GHz etc).
Thanks a lot in advance!