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GeForce 8800 GTS (G80) 640MB vs Radeon HD 6570 (OEM) 2GB
Intro
The GeForce 8800 GTS (G80) 640MB comes with core clock speeds of 513 MHz on the GPU, and 792 MHz on the 640 MB of GDDR3 RAM. It features 96 SPUs as well as 48 TAUs and 20 Rasterization Operator Units.Compare that to the Radeon HD 6570 (OEM) 2GB, which has clock speeds of 650 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 RAM. It features 480 SPUs as well as 24 Texture Address Units and 8 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6570 (OEM) 2GB |
|
50 Watts |
| GeForce 8800 GTS (G80) 640MB |
|
143 Watts |
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Memory Bandwidth
The Radeon HD 6570 (OEM) 2GB should in theory be a little bit faster than the GeForce 8800 GTS (G80) 640MB in general. (explain)
| Radeon HD 6570 (OEM) 2GB |
|
64000 MB/sec |
| GeForce 8800 GTS (G80) 640MB |
|
63360 MB/sec |
|
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Texel Rate
The GeForce 8800 GTS (G80) 640MB is a lot (approximately 58%) better at anisotropic filtering than the Radeon HD 6570 (OEM) 2GB. (explain)| GeForce 8800 GTS (G80) 640MB |
|
24624 Mtexels/sec |
| Radeon HD 6570 (OEM) 2GB |
|
15600 Mtexels/sec |
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Pixel Rate
The GeForce 8800 GTS (G80) 640MB is a lot (approximately 97%) more effective at anti-aliasing than the Radeon HD 6570 (OEM) 2GB, and also will be able to handle higher resolutions while still performing well. (explain)| GeForce 8800 GTS (G80) 640MB |
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10260 Mpixels/sec |
| Radeon HD 6570 (OEM) 2GB |
|
5200 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
Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.
GeForce 8800 GTS (G80) 640MBAmazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Radeon HD 6570 (OEM) 2GBAmazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
|
Specifications
| Model | GeForce 8800 GTS (G80) 640MB | Radeon HD 6570 (OEM) 2GB |
|---|---|---|
| Manufacturer | nVidia | ATi |
| Year | Nov 2006 (640) | February 2011 |
| Code Name | G80 | Turks |
| Fab Process | 90 nm | 40 nm |
| Bus | PCIe x16 | PCIe 2.1 x16 |
| Memory | 640 MB | 1024 MB |
| Core Speed | 513 MHz | 650 MHz |
| Shader Speed | 1188 MHz | (N/A) MHz |
| Memory Speed | 792 MHz | 1000 MHz |
| Unified Shaders | 96 | 480 |
| Texture Mapping Units | 48 | 24 |
| Render Output Units | 20 | 8 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 320-bit | 128-bit |
| DirectX Version | DirectX 10 | DirectX 11 |
| OpenGL Version | OpenGL 3.0 | OpenGL 4.1 |
| Power (Max TDP) | 143 watts | 50 watts |
| Shader Model | 4.0 | 5.0 |
| Bandwidth | 63360 MB/sec | 64000 MB/sec |
| Texel Rate | 24624 Mtexels/sec | 15600 Mtexels/sec |
| Pixel Rate | 10260 Mpixels/sec | 5200 Mpixels/sec |
Memory Bandwidth: Memory bandwidth is the max amount of data (counted in megabytes per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the interface width by its memory speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This is worked out by multiplying the total amount of texture units of the card by the core clock 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 in a second.
Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant 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 maximum fill rate.
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