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GeForce GT 320 vs GeForce GT 450 (OEM)
Intro
The GeForce GT 320 has a core clock speed of 540 MHz and a GDDR3 memory speed of 790 MHz. It also makes use of a 128-bit bus, and makes use of a 40 nm design. It features 72 SPUs, 24 Texture Address Units, and 8 Raster Operation Units.Compare those specs to the GeForce GT 450 (OEM), which uses a 40 nm design. nVidia has clocked the core speed at 790 MHz. The GDDR5 RAM works at a frequency of 1000 MHz on this particular card. It features 144 SPUs along with 24 TAUs and 24 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GT 320 |
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43 Watts |
| GeForce GT 450 (OEM) |
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106 Watts |
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Memory Bandwidth
Performance-wise, the GeForce GT 450 (OEM) should theoretically be much better than the GeForce GT 320 in general. (explain)
| GeForce GT 450 (OEM) |
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96000 MB/sec |
| GeForce GT 320 |
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25280 MB/sec |
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Texel Rate
The GeForce GT 450 (OEM) is quite a bit (about 46%) faster with regards to anisotropic filtering than the GeForce GT 320. (explain)| GeForce GT 450 (OEM) |
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18960 Mtexels/sec |
| GeForce GT 320 |
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12960 Mtexels/sec |
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Pixel Rate
If running with high levels of AA is important to you, then the GeForce GT 450 (OEM) is a better choice, by a large margin. (explain)| GeForce GT 450 (OEM) |
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18960 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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GeForce GT 450 (OEM)Amazon.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 | GeForce GT 450 (OEM) |
|---|---|---|
| Manufacturer | nVidia | nVidia |
| Year | February 2010 | October 2010 |
| Code Name | GT215 | GF106 |
| Memory | 1024 MB | 1536 MB |
| Core Speed | 540 MHz | 790 MHz |
| Memory Speed | 1580 MHz | 4000 MHz |
| Power (Max TDP) | 43 watts | 106 watts |
| Bandwidth | 25280 MB/sec | 96000 MB/sec |
| Texel Rate | 12960 Mtexels/sec | 18960 Mtexels/sec |
| Pixel Rate | 4320 Mpixels/sec | 18960 Mpixels/sec |
| Unified Shaders | 72 | 144 |
| Texture Mapping Units | 24 | 24 |
| Render Output Units | 8 | 24 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 128-bit | 192-bit |
| Fab Process | 40 nm | 40 nm |
| Transistors | 727 million | 1170 million |
| Bus | PCIe x16 | PCIe x16 |
| DirectX Version | DirectX 10.1 | DirectX 11 |
| OpenGL Version | OpenGL 3.3 | OpenGL 4.1 |
Memory Bandwidth: Memory bandwidth is the max amount of data (counted in MB per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher 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 texture map elements (texels) that are processed per second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the graphics 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 amount of pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.
GeForce GT 320Amazon.com
Check prices at:
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GeForce GT 450 (OEM)Amazon.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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