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Geforce GTX 670 vs Radeon HD 7850
Intro
The Geforce GTX 670 comes with a clock frequency of 915 MHz and a GDDR5 memory frequency of 1500 MHz. It also makes use of a 256-bit bus, and makes use of a 28 nm design. It is made up of 1344 SPUs, 112 TAUs, and 32 Raster Operation Units.Compare those specifications to the Radeon HD 7850, which uses a 28 nm design. ATi has set the core frequency at 860 MHz. The GDDR5 RAM runs at a frequency of 1200 MHz on this card. It features 1024 SPUs along with 64 Texture Address Units and 32 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 7850 |
|
130 Watts |
| Geforce GTX 670 |
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170 Watts |
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Memory Bandwidth
Performance-wise, the Geforce GTX 670 should theoretically be much superior to the Radeon HD 7850 overall. (explain)
| Geforce GTX 670 |
|
192000 MB/sec |
| Radeon HD 7850 |
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153600 MB/sec |
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Texel Rate
The Geforce GTX 670 will be much (approximately 86%) more effective at AF than the Radeon HD 7850. (explain)| Geforce GTX 670 |
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102480 Mtexels/sec |
| Radeon HD 7850 |
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55040 Mtexels/sec |
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Pixel Rate
The Geforce GTX 670 is a bit (more or less 6%) more effective at AA than the Radeon HD 7850, and also able to handle higher resolutions more effectively. (explain)| Geforce GTX 670 |
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29280 Mpixels/sec |
| Radeon HD 7850 |
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27520 Mpixels/sec |
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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
Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.
Geforce GTX 670Amazon.com
Other US-based stores
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Radeon HD 7850Amazon.com
Other US-based stores
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Specifications
| Model | Geforce GTX 670 | Radeon HD 7850 |
|---|---|---|
| Manufacturer | nVidia | ATi |
| Year | May 2012 | March 2012 |
| Code Name | GK104 | Pitcairn Pro |
| Fab Process | 28 nm | 28 nm |
| Bus | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Memory | 2048 MB | 2048 MB |
| Core Speed | 915 MHz | 860 MHz |
| Shader Speed | 915 MHz | (N/A) MHz |
| Memory Speed | 1500 MHz (6000 MHz effective) | 1200 MHz (4800 MHz effective) |
| Unified Shaders | 1344 | 1024 |
| Texture Mapping Units | 112 | 64 |
| Render Output Units | 32 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 256-bit |
| DirectX Version | DirectX 11.1 | DirectX 11.1 |
| OpenGL Version | OpenGL 4.2 | OpenGL 4.2 |
| Power (Max TDP) | 170 watts | 130 watts |
| Shader Model | 5.0 | 5.0 |
| Bandwidth | 192000 MB/sec | 153600 MB/sec |
| Texel Rate | 102480 Mtexels/sec | 55040 Mtexels/sec |
| Pixel Rate | 29280 Mpixels/sec | 27520 Mpixels/sec |
Memory Bandwidth: Bandwidth is the maximum amount of data (counted in megabytes per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 number of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.
Comments
One Response to “Geforce GTX 670 vs Radeon HD 7850”I was Between GTX 670 and HD 7970 but considering that GTX 670 is using much lower power consumption and have more overclock stabillity than HD 7970 was the reason that i bought GTX 670!!!
Both cards are great if you play sport/rpg/simulator/strategy games then go for AMD if you play games like Battlefield 3 or Crysis 3 or Batman Arkham city then nVidia all the way!
Moreover nVidia drivers are much better than ATi's is!