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GeForce GTS 250 512MB vs Radeon HD 5770
Intro
The GeForce GTS 250 512MB features a core clock speed of 738 MHz and a GDDR3 memory frequency of 1100 MHz. It also makes use of a 256-bit bus, and makes use of a 65/55 nm design. It is comprised of 128 SPUs, 64 TAUs, and 16 ROPs.Compare those specifications to the Radeon HD 5770, which comes with core speeds of 850 MHz on the GPU, and 1200 MHz on the 1024 MB of GDDR5 memory. It features 800(160x5) SPUs along with 40 Texture Address Units and 16 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 5770 |
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108 Watts |
| GeForce GTS 250 512MB |
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145 Watts |
|
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Memory Bandwidth
The Radeon HD 5770 should in theory perform a bit faster than the GeForce GTS 250 512MB overall. (explain)
| Radeon HD 5770 |
|
76800 MB/sec |
| GeForce GTS 250 512MB |
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70400 MB/sec |
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Texel Rate
The GeForce GTS 250 512MB is much (approximately 39%) faster with regards to anisotropic filtering than the Radeon HD 5770. (explain)| GeForce GTS 250 512MB |
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47232 Mtexels/sec |
| Radeon HD 5770 |
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34000 Mtexels/sec |
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Pixel Rate
The Radeon HD 5770 will be a small bit (about 15%) more effective at FSAA than the GeForce GTS 250 512MB, and also will be capable of handling higher screen resolutions better. (explain)| Radeon HD 5770 |
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13600 Mpixels/sec |
| GeForce GTS 250 512MB |
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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
GeForce GTS 250 512MBAmazon.com
|
Radeon HD 5770Amazon.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 GTS 250 512MB | Radeon HD 5770 |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | March 3, 2009 | October 13, 2009 |
| Code Name | G92a/b | Juniper XT |
| Memory | 512 MB | 1024 MB |
| Core Speed | 738 MHz | 850 MHz |
| Memory Speed | 2200 MHz | 4800 MHz |
| Power (Max TDP) | 145 watts | 108 watts |
| Bandwidth | 70400 MB/sec | 76800 MB/sec |
| Texel Rate | 47232 Mtexels/sec | 34000 Mtexels/sec |
| Pixel Rate | 11808 Mpixels/sec | 13600 Mpixels/sec |
| Unified Shaders | 128 | 800(160x5) |
| Texture Mapping Units | 64 | 40 |
| Render Output Units | 16 | 16 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 256-bit | 128-bit |
| Fab Process | 65/55 nm | 40 nm |
| Transistors | 754 million | 1040 million |
| Bus | PCIe x16 2.0 | PCIe 2.1 x16 |
| DirectX Version | DirectX 10 | DirectX 11 |
| OpenGL Version | OpenGL 3.1 | OpenGL 3.2 |
Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in megabytes per second) that can be transported across the external memory interface in one second. It's calculated by multiplying the bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.
Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.
GeForce GTS 250 512MBAmazon.com
|
Radeon HD 5770Amazon.com
|
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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