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GeForce GTX 295 vs Geforce GTX 680
Intro
The GeForce GTX 295 has a clock frequency of 576 MHz and a GDDR3 memory frequency of 999 MHz. It also makes use of a 448-bit memory bus, and makes use of a 55 nm design. It features 240 SPUs, 80 Texture Address Units, and 28 ROPs.Compare all that to the Geforce GTX 680, which makes use of a 28 nm design. nVidia has set the core frequency at 1006 MHz. The GDDR5 memory runs at a frequency of 1502 MHz on this model. It features 1536 SPUs as well as 128 Texture Address Units and 32 Rasterization Operator Units.
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 16% faster than the Geforce GTX 680 overall, due to its higher bandwidth. (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 will be a lot (about 40%) faster with regards to anisotropic filtering 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 is just a bit (about 0%) faster with regards to FSAA than the Geforce GTX 680, and capable of handling higher resolutions while still performing well. (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
Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.
GeForce GTX 295Amazon.com
Other US-based stores
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Geforce GTX 680Amazon.com
Other US-based stores
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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 11.1 |
| 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 max amount of information (measured in MB per second) that can be transferred across the external memory interface in a second. It is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its 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 called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum 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...