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GeForce GT 320 vs Radeon HD 4890 2GB
Intro
The GeForce GT 320 comes with core clock speeds of 540 MHz on the GPU, and 790 MHz on the 1024 MB of GDDR3 memory. It features 72 SPUs along with 24 TAUs and 8 Rasterization Operator Units.Compare that to the Radeon HD 4890 2GB, which makes use of a 55 nm design. AMD has set the core speed at 1000 MHz. The GDDR5 RAM is set to run at a speed of 975 MHz on this model. It features 800(160x5) SPUs along with 40 Texture Address Units and 16 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GT 320 |
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43 Watts |
| Radeon HD 4890 2GB |
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190 Watts |
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Memory Bandwidth
The Radeon HD 4890 2GB, in theory, should perform quite a bit faster than the GeForce GT 320 in general. (explain)
| Radeon HD 4890 2GB |
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124800 MB/sec |
| GeForce GT 320 |
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25280 MB/sec |
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Texel Rate
The Radeon HD 4890 2GB will be much (about 209%) faster with regards to AF than the GeForce GT 320. (explain)| Radeon HD 4890 2GB |
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40000 Mtexels/sec |
| GeForce GT 320 |
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12960 Mtexels/sec |
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Pixel Rate
If running with a high resolution is important to you, then the Radeon HD 4890 2GB is superior to the GeForce GT 320, by far. (explain)| Radeon HD 4890 2GB |
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16000 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 4890 2GBAmazon.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 4890 2GB |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | February 2010 | Apr 2, 2009 |
| Code Name | GT215 | RV790 XT |
| Memory | 1024 MB | 2048 MB |
| Core Speed | 540 MHz | 1000 MHz |
| Memory Speed | 1580 MHz | 3900 MHz |
| Power (Max TDP) | 43 watts | 190 watts |
| Bandwidth | 25280 MB/sec | 124800 MB/sec |
| Texel Rate | 12960 Mtexels/sec | 40000 Mtexels/sec |
| Pixel Rate | 4320 Mpixels/sec | 16000 Mpixels/sec |
| Unified Shaders | 72 | 800(160x5) |
| Texture Mapping Units | 24 | 40 |
| Render Output Units | 8 | 16 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 128-bit | 256-bit |
| Fab Process | 40 nm | 55 nm |
| Transistors | 727 million | 959 million |
| Bus | PCIe x16 | PCIe 2.0 x16 |
| DirectX Version | DirectX 10.1 | DirectX 10.1 |
| OpenGL Version | OpenGL 3.3 | OpenGL 3.0 |
Memory Bandwidth: Bandwidth is the largest amount of data (counted in MB per second) that can be transported over the external memory interface within a second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is calculated by multiplying the total amount of texture units by the core 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 in a second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.
GeForce GT 320Amazon.com
Check prices at:
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Radeon HD 4890 2GBAmazon.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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