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GeForce GTS 250 1GB vs GeForce GTS 450 1GB
Intro
The GeForce GTS 250 1GB comes with a GPU clock speed of 738 MHz, and the 1024 MB of GDDR3 RAM runs at 1100 MHz through a 256-bit bus. It also is comprised of 128 SPUs, 64 Texture Address Units, and 16 Raster Operation Units.Compare all that to the GeForce GTS 450 1GB, which comes with a GPU core clock speed of 783 MHz, and 1024 MB of GDDR5 memory set to run at 902 MHz through a 128-bit bus. It also is made up of 192 Stream Processors, 32 Texture Address Units, and 16 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GTS 450 1GB |
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106 Watts |
| GeForce GTS 250 1GB |
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145 Watts |
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Memory Bandwidth
Theoretically, the GeForce GTS 250 1GB should perform a lot faster than the GeForce GTS 450 1GB overall. (explain)
| GeForce GTS 250 1GB |
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70400 MB/sec |
| GeForce GTS 450 1GB |
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57728 MB/sec |
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Texel Rate
The GeForce GTS 250 1GB is much (about 89%) better at anisotropic filtering than the GeForce GTS 450 1GB. (explain)| GeForce GTS 250 1GB |
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47232 Mtexels/sec |
| GeForce GTS 450 1GB |
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25056 Mtexels/sec |
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Pixel Rate
The GeForce GTS 450 1GB is just a bit (approximately 6%) faster with regards to anti-aliasing than the GeForce GTS 250 1GB, and also capable of handling higher screen resolutions more effectively. (explain)| GeForce GTS 450 1GB |
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12528 Mpixels/sec |
| GeForce GTS 250 1GB |
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11808 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
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 GTS 250 1GBAmazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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GeForce GTS 450 1GBAmazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Specifications
| Model | GeForce GTS 250 1GB | GeForce GTS 450 1GB |
|---|---|---|
| Manufacturer | nVidia | nVidia |
| Year | March 3, 2009 | September 2010 |
| Code Name | G92a/b | GF106 |
| Fab Process | 65/55 nm | 40 nm |
| Bus | PCIe x16 2.0 | PCIe x16 |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 738 MHz | 783 MHz |
| Shader Speed | 1836 MHz | 1566 MHz |
| Memory Speed | 1100 MHz | 902 MHz |
| Unified Shaders | 128 | 192 |
| Texture Mapping Units | 64 | 32 |
| Render Output Units | 16 | 16 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 256-bit | 128-bit |
| DirectX Version | DirectX 10 | DirectX 11 |
| OpenGL Version | OpenGL 3.1 | OpenGL 4.1 |
| Power (Max TDP) | 145 watts | 106 watts |
| Shader Model | 4.0 | 5.0 |
| Bandwidth | 70400 MB/sec | 57728 MB/sec |
| Texel Rate | 47232 Mtexels/sec | 25056 Mtexels/sec |
| Pixel Rate | 11808 Mpixels/sec | 12528 Mpixels/sec |
Memory Bandwidth: Bandwidth is the largest amount of data (in units of megabytes per second) that can be moved over the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.
Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.
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