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GeForce 9800 GTX+ vs GeForce GTS 250 1GB
Intro
The GeForce 9800 GTX+ has a clock speed of 738 MHz and a GDDR3 memory speed of 1100 MHz. It also uses a 256-bit memory bus, and makes use of a 55 nm design. It is made up of 128 SPUs, 64 TAUs, and 16 Raster Operation Units.Compare all that to the GeForce GTS 250 1GB, which comes with a core clock speed of 738 MHz and a GDDR3 memory frequency of 1100 MHz. It also makes use of a 256-bit memory bus, and uses a 65/55 nm design. It is comprised of 128 SPUs, 64 Texture Address Units, and 16 ROPs.
Power Usage and Theoretical Benchmarks
Both cards have the same power consumption.Memory Bandwidth
Both cards have exactly the same bandwidth, so theoretically they should have the same performance. (explain)
Texel Rate
Both cards have exactly the same texel fill rate, so theoretically they should perform equally good at at AF. (explain)Pixel Rate
Both cards have the exact same pixel fill rate, so theoretically they should perform equally good at at FSAA, and be capable of handling 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 9800 GTX+Amazon.com
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GeForce GTS 250 1GBAmazon.com
Check prices at:
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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 9800 GTX+ | GeForce GTS 250 1GB |
|---|---|---|
| Manufacturer | nVidia | nVidia |
| Year | July 2008 | March 3, 2009 |
| Code Name | G92b | G92a/b |
| Memory | 512 MB | 1024 MB |
| Core Speed | 738 MHz | 738 MHz |
| Memory Speed | 2200 MHz | 2200 MHz |
| Power (Max TDP) | 145 watts | 145 watts |
| Bandwidth | 70400 MB/sec | 70400 MB/sec |
| Texel Rate | 47232 Mtexels/sec | 47232 Mtexels/sec |
| Pixel Rate | 11808 Mpixels/sec | 11808 Mpixels/sec |
| Unified Shaders | 128 | 128 |
| Texture Mapping Units | 64 | 64 |
| Render Output Units | 16 | 16 |
| Bus Type | GDDR3 | GDDR3 |
| Bus Width | 256-bit | 256-bit |
| Fab Process | 55 nm | 65/55 nm |
| Transistors | 754 million | 754 million |
| Bus | PCIe x16 2.0 | PCIe x16 2.0 |
| DirectX Version | DirectX 10 | DirectX 10 |
| OpenGL Version | OpenGL 3.0 | OpenGL 3.1 |
Memory Bandwidth: Bandwidth is the max amount of information (measured in megabytes per second) that can be transferred over the external memory interface within a second. The number is worked out by multiplying the bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 processed in one second. This is calculated by multiplying the total texture units by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.
Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.
GeForce 9800 GTX+Amazon.com
Check prices at:
|
GeForce GTS 250 1GBAmazon.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.
|
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