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GeForce GT 440 3GB vs Radeon HD 4890 2GB
Intro
The GeForce GT 440 3GB features a clock frequency of 594 MHz and a GDDR3 memory frequency of 900 MHz. It also features a 192-bit bus, and makes use of a 40 nm design. It features 144 SPUs, 24 TAUs, and 24 Raster Operation Units.Compare those specs to the Radeon HD 4890 2GB, which comes with core clock speeds of 1000 MHz on the GPU, and 975 MHz on the 2048 MB of GDDR5 memory. It features 800(160x5) SPUs as well as 40 Texture Address Units and 16 Rasterization Operator 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
In theory, the Radeon HD 4890 2GB should perform a lot faster than the GeForce GT 440 3GB in general. (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 (about 181%) more effective at AF 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 running with a high screen resolution is important to you, then the Radeon HD 4890 2GB is a better choice, but it probably won't make a huge difference. (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
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 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: Memory bandwidth is the max amount of data (measured in MB per second) that can be transported over the external memory interface within a second. It is worked out by multiplying the bus width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.
Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum 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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