Compare any two graphics cards:
GeForce 8800 GTS (G92) vs GeForce 9800 GT 512MB
Intro
The GeForce 8800 GTS (G92) uses a 65 nm design. nVidia has clocked the core frequency at 650 MHz. The GDDR3 memory works at a speed of 970 MHz on this particular model. It features 128 SPUs as well as 64 Texture Address Units and 16 Rasterization Operator Units.
Compare all of that to the GeForce 9800 GT 512MB, which has a core clock speed of 600 MHz and a GDDR3 memory speed of 900 MHz. It also makes use of a 256-bit memory bus, and uses a 65/55 nm design. It is made up of 112 SPUs, 56 TAUs, and 16 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce 9800 GT 512MB |
|
105 Watts |
| GeForce 8800 GTS (G92) |
|
135 Watts |
| |
Difference: 30 Watts (29%)
|
|
Memory Bandwidth
The GeForce 8800 GTS (G92) should in theory be a small bit faster than the GeForce 9800 GT 512MB overall. (explain)
| GeForce 8800 GTS (G92) |
|
62080 MB/sec |
| GeForce 9800 GT 512MB |
|
57600 MB/sec |
| |
Difference: 4480 (8%)
|
|
Texel Rate
The GeForce 8800 GTS (G92) will be quite a bit (about 24%) more effective at AF than the GeForce 9800 GT 512MB. (
explain)
| GeForce 8800 GTS (G92) |
|
41600 Mtexels/sec |
| GeForce 9800 GT 512MB |
|
33600 Mtexels/sec |
| |
Difference: 8000 (24%)
|
|
Pixel Rate
If running with high levels of AA is important to you, then the GeForce 8800 GTS (G92) is the winner, not by a very large margin though. (
explain)
| GeForce 8800 GTS (G92) |
|
10400 Mpixels/sec |
| GeForce 9800 GT 512MB |
|
9600 Mpixels/sec |
| |
Difference: 800 (8%)
|
|
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
|
GeForce 9800 GT 512MB
Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
|
Specifications
| Model
| GeForce 8800 GTS (G92) |
GeForce 9800 GT 512MB |
| Manufacturer
| nVidia |
nVidia |
| Year
| Dec 2007 |
July 2008 |
| Code Name
| G92 |
G92a/b |
| Fab Process
| 65 nm |
65/55 nm |
| Bus
| PCIe x16 2.0 |
PCIe x16 2.0 |
| Memory
| 512 MB |
512 MB |
| Core Speed
| 650 MHz |
600 MHz |
| Shader Speed
| 1625 MHz |
1500 MHz |
| Memory Speed
| 970 MHz |
900 MHz |
| Unified Shaders
| 128 |
112 |
| Texture Mapping Units
| 64 |
56 |
| Render Output Units
| 16 |
16 |
| Bus Type
| GDDR3 |
GDDR3 |
| Bus Width
| 256-bit |
256-bit |
| DirectX Version
| DirectX 10 |
DirectX 10 |
| OpenGL Version
| OpenGL 3.0 |
OpenGL 3.0 |
| Power (Max TDP)
| 135 watts |
105 watts |
| Shader Model
| 4.0 |
4.0 |
| Bandwidth
| 62080 MB/sec |
57600 MB/sec |
| Texel Rate
| 41600 Mtexels/sec |
33600 Mtexels/sec |
| Pixel Rate
| 10400 Mpixels/sec |
9600 Mpixels/sec |
Memory Bandwidth: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 again. If 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 high resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. The figure 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 outputting the pixels (image) to the screen.
The actual pixel output rate is also dependant on quite a few other factors, especially 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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