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GeForce 8800 GTS (G92) vs Radeon HD 4850 1GB
Intro
The GeForce 8800 GTS (G92) has clock speeds of 650 MHz on the GPU, and 970 MHz on the 512 MB of GDDR3 RAM. It features 128 SPUs as well as 64 Texture Address Units and 16 Rasterization Operator Units.Compare all of that to the Radeon HD 4850 1GB, which comes with a GPU core clock speed of 625 MHz, and 1024 MB of GDDR4 RAM running at 993 MHz through a 256-bit bus. It also is made up of 800(160x5) SPUs, 40 Texture Address Units, and 16 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 4850 1GB |
|
110 Watts |
| GeForce 8800 GTS (G92) |
|
135 Watts |
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Memory Bandwidth
Theoretically speaking, the Radeon HD 4850 1GB is 2% faster than the GeForce 8800 GTS (G92) overall, due to its higher bandwidth. (explain)
| Radeon HD 4850 1GB |
|
63552 MB/sec |
| GeForce 8800 GTS (G92) |
|
62080 MB/sec |
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Texel Rate
The GeForce 8800 GTS (G92) is a lot (about 66%) more effective at AF than the Radeon HD 4850 1GB. (explain)| GeForce 8800 GTS (G92) |
|
41600 Mtexels/sec |
| Radeon HD 4850 1GB |
|
25000 Mtexels/sec |
|
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Pixel Rate
The GeForce 8800 GTS (G92) is a bit (about 4%) more effective at AA than the Radeon HD 4850 1GB, and should be capable of handling higher resolutions more effectively. (explain)| GeForce 8800 GTS (G92) |
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10400 Mpixels/sec |
| Radeon HD 4850 1GB |
|
10000 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 (G92)Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Radeon HD 4850 1GBAmazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Specifications
| Model | GeForce 8800 GTS (G92) | Radeon HD 4850 1GB |
|---|---|---|
| Manufacturer | nVidia | ATi |
| Year | Dec 2007 | Jun 25, 2008 |
| Code Name | G92 | RV770 PRO |
| Fab Process | 65 nm | 55 nm |
| Bus | PCIe x16 2.0 | PCIe 2.0 x16 |
| Memory | 512 MB | 1024 MB |
| Core Speed | 650 MHz | 625 MHz |
| Shader Speed | 1625 MHz | (N/A) MHz |
| Memory Speed | 970 MHz | 993 MHz |
| Unified Shaders | 128 | 800(160x5) |
| Texture Mapping Units | 64 | 40 |
| Render Output Units | 16 | 16 |
| Bus Type | GDDR3 | GDDR4 |
| Bus Width | 256-bit | 256-bit |
| DirectX Version | DirectX 10 | DirectX 10.1 |
| OpenGL Version | OpenGL 3.0 | OpenGL 3.0 |
| Power (Max TDP) | 135 watts | 110 watts |
| Shader Model | 4.0 | 4.1 |
| Bandwidth | 62080 MB/sec | 63552 MB/sec |
| Texel Rate | 41600 Mtexels/sec | 25000 Mtexels/sec |
| Pixel Rate | 10400 Mpixels/sec | 10000 Mpixels/sec |
Memory Bandwidth: Bandwidth is the maximum amount of data (measured in MB per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the bus width by the speed of its memory. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.
Pixel Rate: Pixel rate is the most pixels the video 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 number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.
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