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GeForce GTS 250 1GB vs Radeon HD 6770 1GB
Intro
The GeForce GTS 250 1GB uses a 65/55 nm design. nVidia has set the core frequency at 738 MHz. The GDDR3 RAM runs at a frequency of 1100 MHz on this particular card. It features 128 SPUs as well as 64 Texture Address Units and 16 Rasterization Operator Units.Compare those specifications to the Radeon HD 6770 1GB, which features clock speeds of 900 MHz on the GPU, and 1050 MHz on the 1024 MB of GDDR5 RAM. It features 800 SPUs along with 40 TAUs and 16 Rasterization Operator Units.
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
Theoretically speaking, the GeForce GTS 250 1GB should 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 should be much (more or less 31%) better at anisotropic filtering 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
The Radeon HD 6770 1GB is much (approximately 22%) better at AA than the GeForce GTS 250 1GB, and able to handle higher screen resolutions while still performing well. (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
Check prices at:
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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 data (counted in MB per second) that can be transported over the external memory interface in a second. The number is worked out by multiplying the bus width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.
Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max 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