 |
 |
GeForce 8800 GT 256MB vs GeForce GTX 580
Intro
The GeForce 8800 GT 256MB has a GPU core clock speed of 600 MHz, and the 256 MB of GDDR3 RAM runs at 700 MHz through a 256-bit bus. It also is comprised of 112 SPUs, 56 Texture Address Units, and 16 Raster Operation Units.Compare those specs to the GeForce GTX 580, which has a core clock frequency of 772 MHz and a GDDR5 memory speed of 1002 MHz. It also uses a 384-bit bus, and uses a 40 nm design. It is made up of 512 SPUs, 64 TAUs, and 48 Raster Operation Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce 8800 GT 256MB |
|
105 Watts |
| GeForce GTX 580 |
|
244 Watts |
|
|
Memory Bandwidth
The GeForce GTX 580 should in theory perform quite a bit faster than the GeForce 8800 GT 256MB in general. (explain)
| GeForce GTX 580 |
|
192384 MB/sec |
| GeForce 8800 GT 256MB |
|
44800 MB/sec |
|
|
Texel Rate
The GeForce GTX 580 is quite a bit (more or less 47%) better at anisotropic filtering than the GeForce 8800 GT 256MB. (explain)| GeForce GTX 580 |
|
49408 Mtexels/sec |
| GeForce 8800 GT 256MB |
|
33600 Mtexels/sec |
|
|
Pixel Rate
If running with a high resolution is important to you, then the GeForce GTX 580 is the winner, by a large margin. (explain)| GeForce GTX 580 |
|
37056 Mpixels/sec |
| GeForce 8800 GT 256MB |
|
9600 Mpixels/sec |
|
|
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 8800 GT 256MBAmazon.com
Check prices at:
|
GeForce GTX 580Amazon.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.
Specifications
| Model | GeForce 8800 GT 256MB | GeForce GTX 580 |
|---|---|---|
| Manufacturer | nVidia | nVidia |
| Year | Dec 2007 | November 2010 |
| Code Name | G92 | GF110 |
| Memory | 256 MB | 1536 MB |
| Core Speed | 600 MHz | 772 MHz |
| Memory Speed | 1400 MHz | 4008 MHz |
| Power (Max TDP) | 105 watts | 244 watts |
| Bandwidth | 44800 MB/sec | 192384 MB/sec |
| Texel Rate | 33600 Mtexels/sec | 49408 Mtexels/sec |
| Pixel Rate | 9600 Mpixels/sec | 37056 Mpixels/sec |
| Unified Shaders | 112 | 512 |
| Texture Mapping Units | 56 | 64 |
| Render Output Units | 16 | 48 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 256-bit | 384-bit |
| Fab Process | 65 nm | 40 nm |
| Transistors | 754 million | 3000 million |
| Bus | PCIe x16 2.0 | PCIe x16 |
| DirectX Version | DirectX 10 | DirectX 11 |
| OpenGL Version | OpenGL 3.0 | OpenGL 4.1 |
Memory Bandwidth: Bandwidth is the largest amount of data (in units of megabytes per second) that can be moved past the external memory interface in one second. It's worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one 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 graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.
Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.
GeForce 8800 GT 256MBAmazon.com
Check prices at:
|
GeForce GTX 580Amazon.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
One Response to “GeForce 8800 GT 256MB vs GeForce GTX 580”The information I got here for the Nvidia 8800GT vs the GTX 580 is great. I do still wish I could get an idea of the "relative compute performance" that is advertised on the Nvidia site. Or, even more meaningful to me would be something along the lines of a frame rate for transcoding.