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GeForce 9800 GT 1GB vs Radeon HD 4870 1GB
Intro
The GeForce 9800 GT 1GB features core clock speeds of 600 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR3 memory. It features 112 SPUs as well as 56 TAUs and 16 Rasterization Operator Units.Compare those specs to the Radeon HD 4870 1GB, which comes with core speeds of 750 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR5 RAM. It features 800(160x5) SPUs as well as 40 TAUs and 16 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce 9800 GT 1GB |
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105 Watts |
| Radeon HD 4870 1GB |
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150 Watts |
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Memory Bandwidth
Performance-wise, the Radeon HD 4870 1GB should theoretically be much superior to the GeForce 9800 GT 1GB in general. (explain)
| Radeon HD 4870 1GB |
|
115200 MB/sec |
| GeForce 9800 GT 1GB |
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57600 MB/sec |
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Texel Rate
The GeForce 9800 GT 1GB will be a little bit (about 12%) more effective at texture filtering than the Radeon HD 4870 1GB. (explain)| GeForce 9800 GT 1GB |
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33600 Mtexels/sec |
| Radeon HD 4870 1GB |
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30000 Mtexels/sec |
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Pixel Rate
If running with a high resolution is important to you, then the Radeon HD 4870 1GB is a better choice, and very much so. (explain)| Radeon HD 4870 1GB |
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12000 Mpixels/sec |
| GeForce 9800 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 9800 GT 1GBAmazon.com
Check prices at:
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Radeon HD 4870 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 9800 GT 1GB | Radeon HD 4870 1GB |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | July 2008 | Jun 25, 2008 |
| Code Name | G92a/b | RV770 XT |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 600 MHz | 750 MHz |
| Memory Speed | 1800 MHz | 3600 MHz |
| Power (Max TDP) | 105 watts | 150 watts |
| Bandwidth | 57600 MB/sec | 115200 MB/sec |
| Texel Rate | 33600 Mtexels/sec | 30000 Mtexels/sec |
| Pixel Rate | 9600 Mpixels/sec | 12000 Mpixels/sec |
| Unified Shaders | 112 | 800(160x5) |
| Texture Mapping Units | 56 | 40 |
| Render Output Units | 16 | 16 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 256-bit | 256-bit |
| Fab Process | 65/55 nm | 55 nm |
| Transistors | 754 million | 956 million |
| Bus | PCIe x16 2.0 | PCIe 2.0 x16 |
| DirectX Version | DirectX 10 | DirectX 10.1 |
| OpenGL Version | OpenGL 3.0 | OpenGL 3.0 |
Memory Bandwidth: Bandwidth is the max amount of data (measured in MB per second) that can be transferred past the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's 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 texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.
GeForce 9800 GT 1GBAmazon.com
Check prices at:
|
Radeon HD 4870 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
2 Responses to “GeForce 9800 GT 1GB vs Radeon HD 4870 1GB”gostei deste informativos mas nao sei muito sobre as placas
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