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GeForce GT 320 vs Radeon HD 7970
Intro
The GeForce GT 320 comes with a clock frequency of 540 MHz and a GDDR3 memory frequency of 790 MHz. It also features a 128-bit memory bus, and makes use of a 40 nm design. It is comprised of 72 SPUs, 24 TAUs, and 8 ROPs.Compare those specs to the Radeon HD 7970, which comes with a clock speed of 925 MHz and a GDDR5 memory frequency of 1375 MHz. It also features a 384-bit bus, and uses a 28 nm design. It features 2048 SPUs, 128 Texture Address Units, and 32 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GT 320 |
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43 Watts |
| Radeon HD 7970 |
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250 Watts |
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Memory Bandwidth
The Radeon HD 7970 should in theory perform a lot faster than the GeForce GT 320 in general. (explain)
| Radeon HD 7970 |
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264000 MB/sec |
| GeForce GT 320 |
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25280 MB/sec |
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Texel Rate
The Radeon HD 7970 is quite a bit (about 814%) more effective at anisotropic filtering than the GeForce GT 320. (explain)| Radeon HD 7970 |
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118400 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 7970 is a better choice, by a large margin. (explain)| Radeon HD 7970 |
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29600 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 7970Amazon.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 7970 |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | February 2010 | January 2012 |
| Code Name | GT215 | Tahiti XT |
| Memory | 1024 MB | 3072 MB |
| Core Speed | 540 MHz | 925 MHz |
| Memory Speed | 1580 MHz | 5500 MHz |
| Power (Max TDP) | 43 watts | 250 watts |
| Bandwidth | 25280 MB/sec | 264000 MB/sec |
| Texel Rate | 12960 Mtexels/sec | 118400 Mtexels/sec |
| Pixel Rate | 4320 Mpixels/sec | 29600 Mpixels/sec |
| Unified Shaders | 72 | 2048 |
| Texture Mapping Units | 24 | 128 |
| Render Output Units | 8 | 32 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 128-bit | 384-bit |
| Fab Process | 40 nm | 28 nm |
| Transistors | 727 million | 4313 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: Memory bandwidth is the largest amount of data (in units of megabytes per second) that can be transferred over the external memory interface in one second. The number 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 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total number of texture units of the card by the core 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 per second.
Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs 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 rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.
GeForce GT 320Amazon.com
Check prices at:
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Radeon HD 7970Amazon.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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