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GeForce GT 440 3GB vs Radeon HD 4890 2GB
Intro
The GeForce GT 440 3GB comes with a core clock frequency of 594 MHz and a GDDR3 memory speed of 900 MHz. It also uses a 192-bit memory bus, and uses a 40 nm design. It is comprised of 144 SPUs, 24 TAUs, and 24 Raster Operation Units.Compare that to the Radeon HD 4890 2GB, which features GPU clock speed of 1000 MHz, and 2048 MB of GDDR5 RAM set to run at 975 MHz through a 256-bit bus. It also is comprised of 800(160x5) SPUs, 40 TAUs, and 16 Raster Operation Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GT 440 3GB |
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56 Watts |
| Radeon HD 4890 2GB |
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190 Watts |
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Memory Bandwidth
Performance-wise, the Radeon HD 4890 2GB should theoretically be quite a bit superior to the GeForce GT 440 3GB overall. (explain)
| Radeon HD 4890 2GB |
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124800 MB/sec |
| GeForce GT 440 3GB |
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43200 MB/sec |
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Texel Rate
The Radeon HD 4890 2GB is much (more or less 181%) better at anisotropic filtering than the GeForce GT 440 3GB. (explain)| Radeon HD 4890 2GB |
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40000 Mtexels/sec |
| GeForce GT 440 3GB |
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14256 Mtexels/sec |
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Pixel Rate
If using a high screen resolution is important to you, then the Radeon HD 4890 2GB is the winner, though not by far. (explain)| Radeon HD 4890 2GB |
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16000 Mpixels/sec |
| GeForce GT 440 3GB |
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14256 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 GT 440 3GBAmazon.com
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Radeon HD 4890 2GBAmazon.com
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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 GT 440 3GB | Radeon HD 4890 2GB |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | October 2010 | Apr 2, 2009 |
| Code Name | GF106 | RV790 XT |
| Memory | 3072 MB | 2048 MB |
| Core Speed | 594 MHz | 1000 MHz |
| Memory Speed | 1800 MHz | 3900 MHz |
| Power (Max TDP) | 56 watts | 190 watts |
| Bandwidth | 43200 MB/sec | 124800 MB/sec |
| Texel Rate | 14256 Mtexels/sec | 40000 Mtexels/sec |
| Pixel Rate | 14256 Mpixels/sec | 16000 Mpixels/sec |
| Unified Shaders | 144 | 800(160x5) |
| Texture Mapping Units | 24 | 40 |
| Render Output Units | 24 | 16 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 192-bit | 256-bit |
| Fab Process | 40 nm | 55 nm |
| Transistors | 1170 million | 959 million |
| Bus | PCIe x16 | PCIe 2.0 x16 |
| DirectX Version | DirectX 11 | DirectX 10.1 |
| OpenGL Version | OpenGL 4.1 | OpenGL 3.0 |
Memory Bandwidth: Bandwidth is the maximum amount of information (counted in MB per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the bus width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster 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 processed in one second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the clock 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 many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.
GeForce GT 440 3GBAmazon.com
Check prices at:
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Radeon HD 4890 2GBAmazon.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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