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GeForce 8800 GT 1GB vs Radeon HD 7970
Intro
The GeForce 8800 GT 1GB comes with a core clock frequency of 600 MHz and a GDDR3 memory frequency of 900 MHz. It also features a 256-bit bus, and makes use of a 65 nm design. It is made up of 112 SPUs, 56 TAUs, and 16 Raster Operation Units.Compare those specifications to the Radeon HD 7970, which comes with core speeds of 925 MHz on the GPU, and 1375 MHz on the 3072 MB of GDDR5 RAM. It features 2048 SPUs as well as 128 Texture Address Units and 32 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce 8800 GT 1GB |
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105 Watts |
| Radeon HD 7970 |
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250 Watts |
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Memory Bandwidth
The Radeon HD 7970 should theoretically be a lot faster than the GeForce 8800 GT 1GB in general. (explain)
| Radeon HD 7970 |
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264000 MB/sec |
| GeForce 8800 GT 1GB |
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57600 MB/sec |
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Texel Rate
The Radeon HD 7970 will be a lot (about 252%) more effective at AF than the GeForce 8800 GT 1GB. (explain)| Radeon HD 7970 |
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118400 Mtexels/sec |
| GeForce 8800 GT 1GB |
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33600 Mtexels/sec |
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Pixel Rate
The Radeon HD 7970 should be a lot (about 208%) more effective at anti-aliasing than the GeForce 8800 GT 1GB, and also capable of handling higher screen resolutions more effectively. (explain)| Radeon HD 7970 |
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29600 Mpixels/sec |
| GeForce 8800 GT 1GB |
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9600 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 8800 GT 1GBAmazon.com
Check prices at:
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Radeon HD 7970Amazon.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 8800 GT 1GB | Radeon HD 7970 |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | Dec 2007 | January 2012 |
| Code Name | G92 | Tahiti XT |
| Memory | 1024 MB | 3072 MB |
| Core Speed | 600 MHz | 925 MHz |
| Memory Speed | 1800 MHz | 5500 MHz |
| Power (Max TDP) | 105 watts | 250 watts |
| Bandwidth | 57600 MB/sec | 264000 MB/sec |
| Texel Rate | 33600 Mtexels/sec | 118400 Mtexels/sec |
| Pixel Rate | 9600 Mpixels/sec | 29600 Mpixels/sec |
| Unified Shaders | 112 | 2048 |
| Texture Mapping Units | 56 | 128 |
| Render Output Units | 16 | 32 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 256-bit | 384-bit |
| Fab Process | 65 nm | 28 nm |
| Transistors | 754 million | 4313 million |
| Bus | PCIe x16 2.0 | PCIe 3.0 x16 |
| DirectX Version | DirectX 10 | DirectX 11.1 |
| OpenGL Version | OpenGL 3.0 | OpenGL 4.2 |
Memory Bandwidth: Bandwidth is the maximum amount of data (in units of MB per second) that can be transferred across the external memory interface in one second. It's worked out by multiplying the interface width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.
Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.
GeForce 8800 GT 1GBAmazon.com
Check prices at:
|
Radeon HD 7970Amazon.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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