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GeForce GTX 550 Ti vs Radeon HD 6870
Intro
The GeForce GTX 550 Ti has a GPU core speed of 900 MHz, and the 1024 MB of GDDR5 memory is set to run at 1026 MHz through a 192-bit bus. It also is made up of 192 SPUs, 32 TAUs, and 24 ROPs.Compare those specs to the Radeon HD 6870, which has core clock speeds of 900 MHz on the GPU, and 1050 MHz on the 1024 MB of GDDR5 memory. It features 1120 SPUs along with 56 TAUs 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.
3DMark Fire Strike Graphics Score
| Radeon HD 6870 |
|
2870 points |
| GeForce GTX 550 Ti |
|
1910 points |
|
|
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GTX 550 Ti |
|
116 Watts |
| Radeon HD 6870 |
|
151 Watts |
|
|
Memory Bandwidth
As far as performance goes, the Radeon HD 6870 should in theory be much better than the GeForce GTX 550 Ti in general. (explain)
| Radeon HD 6870 |
|
134400 MB/sec |
| GeForce GTX 550 Ti |
|
98496 MB/sec |
|
|
Texel Rate
The Radeon HD 6870 will be quite a bit (approximately 75%) better at AF than the GeForce GTX 550 Ti. (explain)| Radeon HD 6870 |
|
50400 Mtexels/sec |
| GeForce GTX 550 Ti |
|
28800 Mtexels/sec |
|
|
Pixel Rate
The Radeon HD 6870 is quite a bit (about 33%) more effective at FSAA than the GeForce GTX 550 Ti, and should be capable of handling higher resolutions without slowing down too much. (explain)| Radeon HD 6870 |
|
28800 Mpixels/sec |
| GeForce GTX 550 Ti |
|
21600 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
GeForce GTX 550 Ti
Radeon HD 6870
Specifications
| Model | GeForce GTX 550 Ti | Radeon HD 6870 |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | March 2011 | October 2010 |
| Code Name | GF116 | Barts XT |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 900 MHz | 900 MHz |
| Memory Speed | 4104 MHz | 4200 MHz |
| Power (Max TDP) | 116 watts | 151 watts |
| Bandwidth | 98496 MB/sec | 134400 MB/sec |
| Texel Rate | 28800 Mtexels/sec | 50400 Mtexels/sec |
| Pixel Rate | 21600 Mpixels/sec | 28800 Mpixels/sec |
| Unified Shaders | 192 | 1120 |
| Texture Mapping Units | 32 | 56 |
| Render Output Units | 24 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 192-bit | 256-bit |
| Fab Process | 40 nm | 40 nm |
| Transistors | 1170 million | 1700 million |
| Bus | PCIe 2.1 x16 | PCIe x16 |
| DirectX Version | DirectX 11 | DirectX 11 |
| OpenGL Version | OpenGL 4.1 | OpenGL 4.1 |
Memory Bandwidth: Memory bandwidth is the max amount of data (in units of MB per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the bus width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.
GeForce GTX 550 Ti
Radeon HD 6870
Comments
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