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GeForce GTS 250 1GB vs Radeon HD 6770 1GB
Intro
The GeForce GTS 250 1GB has core clock speeds of 738 MHz on the GPU, and 1100 MHz on the 1024 MB of GDDR3 memory. It features 128 SPUs as well as 64 Texture Address Units and 16 Rasterization Operator Units.Compare all of that to the Radeon HD 6770 1GB, which uses a 40 nm design. AMD has set the core speed at 900 MHz. The GDDR5 memory is set to run at a frequency of 1050 MHz on this specific card. It features 800 SPUs as well as 40 Texture Address Units and 16 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6770 1GB |
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108 Watts |
| GeForce GTS 250 1GB |
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145 Watts |
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Memory Bandwidth
The GeForce GTS 250 1GB should in theory be just a bit faster than the Radeon HD 6770 1GB in general. (explain)
| GeForce GTS 250 1GB |
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70400 MB/sec |
| Radeon HD 6770 1GB |
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67200 MB/sec |
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Texel Rate
The GeForce GTS 250 1GB will be much (more or less 31%) more effective at AF than the Radeon HD 6770 1GB. (explain)| GeForce GTS 250 1GB |
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47232 Mtexels/sec |
| Radeon HD 6770 1GB |
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36000 Mtexels/sec |
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Pixel Rate
If running with a high screen resolution is important to you, then the Radeon HD 6770 1GB is the winner, and very much so. (explain)| Radeon HD 6770 1GB |
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14400 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
GeForce GTS 250 1GBAmazon.com
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Radeon HD 6770 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 GTS 250 1GB | Radeon HD 6770 1GB |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | March 3, 2009 | January 2011 |
| Code Name | G92a/b | Juniper XT |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 738 MHz | 900 MHz |
| Memory Speed | 2200 MHz | 4200 MHz |
| Power (Max TDP) | 145 watts | 108 watts |
| Bandwidth | 70400 MB/sec | 67200 MB/sec |
| Texel Rate | 47232 Mtexels/sec | 36000 Mtexels/sec |
| Pixel Rate | 11808 Mpixels/sec | 14400 Mpixels/sec |
| Unified Shaders | 128 | 800 |
| 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 x16 |
| DirectX Version | DirectX 10 | DirectX 11 |
| OpenGL Version | OpenGL 3.1 | OpenGL 4.1 |
Memory Bandwidth: Bandwidth is the largest amount of information (measured in megabytes per second) that can be transported past the external memory interface in one second. It is calculated by multiplying the interface width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the video 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 video card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the clock 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 fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.
GeForce GTS 250 1GBAmazon.com
Check prices at:
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Radeon HD 6770 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.
|
Comments
One Response to “GeForce GTS 250 1GB vs Radeon HD 6770 1GB”this comparison is false, because the HD 6770 has a bandwidth greater than the old GTS 250, the HD 6670 is not 67.200mb/sec, has 76.8 Gb / s, and the GTS 250 loses to the HD 6770, the GTS 250 more could be compared to the HD 6750 or less