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GeForce GT 320 vs Radeon HD 7850
Intro
The GeForce GT 320 has core clock speeds of 540 MHz on the GPU, and 790 MHz on the 1024 MB of GDDR3 memory. It features 72 SPUs as well as 24 Texture Address Units and 8 Rasterization Operator Units.Compare all of that to the Radeon HD 7850, which features a GPU core clock speed of 860 MHz, and 2048 MB of GDDR5 memory set to run at 1200 MHz through a 256-bit bus. It also is comprised of 1024 SPUs, 64 TAUs, and 32 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GT 320 |
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43 Watts |
| Radeon HD 7850 |
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130 Watts |
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Memory Bandwidth
As far as performance goes, the Radeon HD 7850 should in theory be much superior to the GeForce GT 320 overall. (explain)
| Radeon HD 7850 |
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153600 MB/sec |
| GeForce GT 320 |
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25280 MB/sec |
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Texel Rate
The Radeon HD 7850 will be a lot (more or less 325%) more effective at AF than the GeForce GT 320. (explain)| Radeon HD 7850 |
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55040 Mtexels/sec |
| GeForce GT 320 |
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12960 Mtexels/sec |
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Pixel Rate
If using a high resolution is important to you, then the Radeon HD 7850 is the winner, and very much so. (explain)| Radeon HD 7850 |
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27520 Mpixels/sec |
| GeForce GT 320 |
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4320 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 GT 320Amazon.com
Check prices at:
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Radeon HD 7850Amazon.com
Check prices at:
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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 GT 320 | Radeon HD 7850 |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | February 2010 | March 2012 |
| Code Name | GT215 | Pitcairn Pro |
| Memory | 1024 MB | 2048 MB |
| Core Speed | 540 MHz | 860 MHz |
| Memory Speed | 1580 MHz | 4800 MHz |
| Power (Max TDP) | 43 watts | 130 watts |
| Bandwidth | 25280 MB/sec | 153600 MB/sec |
| Texel Rate | 12960 Mtexels/sec | 55040 Mtexels/sec |
| Pixel Rate | 4320 Mpixels/sec | 27520 Mpixels/sec |
| Unified Shaders | 72 | 1024 |
| Texture Mapping Units | 24 | 64 |
| Render Output Units | 8 | 32 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 128-bit | 256-bit |
| Fab Process | 40 nm | 28 nm |
| Transistors | 727 million | 2800 million |
| Bus | PCIe x16 | PCIe 3.0 x16 |
| DirectX Version | DirectX 10.1 | DirectX 11.1 |
| OpenGL Version | OpenGL 3.3 | OpenGL 4.2 |
Memory Bandwidth: Bandwidth is the maximum amount of information (measured in MB per second) that can be transported over the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 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 high resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). 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 get to the max fill rate.
GeForce GT 320Amazon.com
Check prices at:
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Radeon HD 7850Amazon.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.
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