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GeForce GTX 260 vs Radeon HD 6770 1GB
Intro
The GeForce GTX 260 makes use of a 65 nm design. nVidia has clocked the core frequency at 576 MHz. The GDDR3 memory works at a speed of 999 MHz on this particular model. It features 192 SPUs as well as 64 TAUs and 28 ROPs.Compare all of that 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 as well as 40 Texture Address Units 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 GTX 260 |
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182 Watts |
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Memory Bandwidth
The GeForce GTX 260, in theory, should be a lot faster than the Radeon HD 6770 1GB in general. (explain)
| GeForce GTX 260 |
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111888 MB/sec |
| Radeon HD 6770 1GB |
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67200 MB/sec |
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Texel Rate
The GeForce GTX 260 will be a small bit (more or less 2%) faster with regards to AF than the Radeon HD 6770 1GB. (explain)| GeForce GTX 260 |
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36864 Mtexels/sec |
| Radeon HD 6770 1GB |
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36000 Mtexels/sec |
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Pixel Rate
If using high levels of AA is important to you, then the GeForce GTX 260 is superior to the Radeon HD 6770 1GB, though not by far. (explain)| GeForce GTX 260 |
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16128 Mpixels/sec |
| Radeon HD 6770 1GB |
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14400 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 GTX 260Amazon.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 GTX 260 | Radeon HD 6770 1GB |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | June 16, 2008 | January 2011 |
| Code Name | G200 | Juniper XT |
| Memory | 896 MB | 1024 MB |
| Core Speed | 576 MHz | 900 MHz |
| Memory Speed | 1998 MHz | 4200 MHz |
| Power (Max TDP) | 182 watts | 108 watts |
| Bandwidth | 111888 MB/sec | 67200 MB/sec |
| Texel Rate | 36864 Mtexels/sec | 36000 Mtexels/sec |
| Pixel Rate | 16128 Mpixels/sec | 14400 Mpixels/sec |
| Unified Shaders | 192 | 800 |
| Texture Mapping Units | 64 | 40 |
| Render Output Units | 28 | 16 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 448-bit | 128-bit |
| Fab Process | 65 nm | 40 nm |
| Transistors | 1400 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: Memory bandwidth is the largest amount of data (in units of MB per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 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 higher screen resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total number of texture units by the core 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 in one second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.
GeForce GTX 260Amazon.com
Check prices at:
|
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
3 Responses to “GeForce GTX 260 vs Radeon HD 6770 1GB”i got both cards.it seems like 6770 is better then gtx260 because of its less cost. high pixel shader.supports dx11 and power consuption is also low than gtx260.
Am gonna preffer 6770
I agree. I have both as well and the GTX seems no better performance wise.
i got 6670 2gb and 9500gt... not much different for medium games.!