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GeForce GTX 295 vs Geforce GTX 680
Intro
The GeForce GTX 295 makes use of a 55 nm design. nVidia has set the core speed at 576 MHz. The GDDR3 memory works at a speed of 999 MHz on this specific model. It features 240 SPUs along with 80 TAUs and 28 ROPs.Compare that to the Geforce GTX 680, which uses a 28 nm design. nVidia has set the core frequency at 1006 MHz. The GDDR5 RAM is set to run at a frequency of 1502 MHz on this model. It features 1536 SPUs along with 128 Texture Address Units and 32 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Geforce GTX 680 |
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195 Watts |
| GeForce GTX 295 |
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289 Watts |
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Memory Bandwidth
Theoretically speaking, the GeForce GTX 295 should be a small bit faster than the Geforce GTX 680 in general. (explain)
| GeForce GTX 295 |
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223776 MB/sec |
| Geforce GTX 680 |
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192256 MB/sec |
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Texel Rate
The Geforce GTX 680 should be much (approximately 40%) faster with regards to AF than the GeForce GTX 295. (explain)| Geforce GTX 680 |
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128768 Mtexels/sec |
| GeForce GTX 295 |
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92160 Mtexels/sec |
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Pixel Rate
The GeForce GTX 295 will be just a bit (about 0%) faster with regards to FSAA than the Geforce GTX 680, and also should be capable of handling higher resolutions without slowing down too much. (explain)| GeForce GTX 295 |
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32256 Mpixels/sec |
| Geforce GTX 680 |
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32192 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.
One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.
Price Comparison
GeForce GTX 295Amazon.com
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Geforce GTX 680Amazon.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 295 | Geforce GTX 680 |
|---|---|---|
| Manufacturer | nVidia | nVidia |
| Year | January 8, 2009 | March 2012 |
| Code Name | G200b | GK104 |
| Fab Process | 55 nm | 28 nm |
| Bus | PCIe x16 2.0 | PCIe 3.0 x16 |
| Memory | 896 MB (x2) | 2048 MB |
| Core Speed | 576 MHz (x2) | 1006 MHz |
| Shader Speed | 1242 MHz (x2) | 1006 MHz |
| Memory Speed | 999 MHz (1998 MHz effective) (x2) | 1502 MHz (6008 MHz effective) |
| Unified Shaders | 240 (x2) | 1536 |
| Texture Mapping Units | 80 (x2) | 128 |
| Render Output Units | 28 (x2) | 32 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 448-bit (x2) | 256-bit |
| DirectX Version | DirectX 10 | DirectX 11.0 |
| OpenGL Version | OpenGL 3.1 | OpenGL 4.2 |
| Power (Max TDP) | 289 watts | 195 watts |
| Shader Model | 4.0 | 5.0 |
| Bandwidth | 223776 MB/sec | 192256 MB/sec |
| Texel Rate | 92160 Mtexels/sec | 128768 Mtexels/sec |
| Pixel Rate | 32256 Mpixels/sec | 32192 Mpixels/sec |
Memory Bandwidth: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If it uses 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 are processed in one second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.
Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.
Comments
6 Responses to “GeForce GTX 295 vs Geforce GTX 680”Also it comes quite close to the GTX 680's general performance in high resolutions. But keep in mind, that a 680 is a single graphic chip, that needs less power and has the overall way better performance than an older GTX 295.
Theoretical BS.
here is realworld results:
http://www.evga.com/forums/tm.aspx?m=1519228
in general until 2015-2016 would be really good....then you will be able to buy from series : 9xx and 10xx...