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GeForce GTX 580 vs GeForce GTX 580 3GB
Intro
The GeForce GTX 580 makes use of a 40 nm design. nVidia has set the core frequency at 772 MHz. The GDDR5 memory runs at a frequency of 1002 MHz on this model. It features 512 SPUs along with 64 Texture Address Units and 48 ROPs.Compare that to the GeForce GTX 580 3GB, which has clock speeds of 772 MHz on the GPU, and 1002 MHz on the 3072 MB of GDDR5 RAM. It features 512 SPUs as well as 64 Texture Address Units and 48 ROPs.
Power Usage and Theoretical Benchmarks
Both cards have the same power consumption.Memory Bandwidth
Both cards have exactly the same memory bandwidth, so theoretically they should have the same performance. (explain)
Texel Rate
Both cards have the exact same texel rate, so in theory they should perform equally good at at anisotropic filtering. (explain)Pixel Rate
Both cards have the exact same pixel rate, so in theory they should perform equally good at at AA, and be able to handle the same screen resolutions. (explain)
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 580Amazon.com
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GeForce GTX 580 3GBAmazon.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 580 | GeForce GTX 580 3GB |
|---|---|---|
| Manufacturer | nVidia | nVidia |
| Year | November 2010 | November 2010 |
| Code Name | GF110 | GF110 |
| Memory | 1536 MB | 3072 MB |
| Core Speed | 772 MHz | 772 MHz |
| Memory Speed | 4008 MHz | 4008 MHz |
| Power (Max TDP) | 244 watts | 244 watts |
| Bandwidth | 192384 MB/sec | 192384 MB/sec |
| Texel Rate | 49408 Mtexels/sec | 49408 Mtexels/sec |
| Pixel Rate | 37056 Mpixels/sec | 37056 Mpixels/sec |
| Unified Shaders | 512 | 512 |
| Texture Mapping Units | 64 | 64 |
| Render Output Units | 48 | 48 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 384-bit | 384-bit |
| Fab Process | 40 nm | 40 nm |
| Transistors | 3000 million | 3000 million |
| Bus | PCIe x16 | PCIe x16 |
| DirectX Version | DirectX 11 | DirectX 11 |
| OpenGL Version | OpenGL 4.1 | OpenGL 4.1 |
Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in MB per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the interface width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher 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 amount of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the video 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 most pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.
GeForce GTX 580Amazon.com
Check prices at:
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GeForce GTX 580 3GBAmazon.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.
|
Comments
2 Responses to “GeForce GTX 580 vs GeForce GTX 580 3GB”So, uh, what's the difference? >_>
I couldn't get the difference because the site considers them both to have identical results. In real world terms, I doubt the difference is substantial unless you're running a multi-monitor setup anyway.