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Geforce GTX 670 vs Radeon HD 7850
Intro
The Geforce GTX 670 uses a 28 nm design. nVidia has set the core frequency at 915 MHz. The GDDR5 RAM runs at a speed of 1500 MHz on this particular model. It features 1344 SPUs as well as 112 TAUs and 32 Rasterization Operator Units.Compare those specifications to the Radeon HD 7850, which features core clock speeds of 860 MHz on the GPU, and 1200 MHz on the 2048 MB of GDDR5 RAM. It features 1024 SPUs along with 64 TAUs and 32 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 7850 |
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130 Watts |
| Geforce GTX 670 |
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170 Watts |
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Memory Bandwidth
Theoretically speaking, the Geforce GTX 670 should perform much faster than the Radeon HD 7850 overall. (explain)
| Geforce GTX 670 |
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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 a lot (approximately 86%) faster with regards to 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
If running with lots of anti-aliasing is important to you, then the Geforce GTX 670 is the winner, but it probably won't make a huge difference. (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
Geforce GTX 670Amazon.com
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Radeon HD 7850Amazon.com
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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 | Geforce GTX 670 | Radeon HD 7850 |
|---|---|---|
| Manufacturer | nVidia | AMD |
| 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 11.0 | 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 (in units of MB per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher 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 number of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total number of texture units by the core 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 applied per second.
Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability 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!