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GeForce GT 440 1.5GB vs GeForce GT 440 3GB
Intro
The GeForce GT 440 1.5GB comes with a GPU core speed of 594 MHz, and the 1536 MB of GDDR3 RAM is set to run at 900 MHz through a 192-bit bus. It also is made up of 144 SPUs, 24 Texture Address Units, and 24 Raster Operation Units.Compare all of that to the GeForce GT 440 3GB, which has a GPU core clock speed of 594 MHz, and 3072 MB of GDDR3 memory running at 900 MHz through a 192-bit bus. It also features 144 Stream Processors, 24 TAUs, and 24 Raster Operation Units.
Power Usage and Theoretical Benchmarks
Both cards have the same power consumption.Memory Bandwidth
Both cards have exactly the same memory bandwidth, so in theory they should perform the same. (explain)
Texel Rate
Both cards have the exact same texel fill rate, so in theory they should perform equally good at at AF. (explain)Pixel Rate
Both cards have the exact same pixel rate, so theoretically they should be equally good at at anti-aliasing, and be capable of handling the same resolutions. (explain)
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 1.5GBAmazon.com
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GeForce GT 440 3GBAmazon.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 1.5GB | GeForce GT 440 3GB |
|---|---|---|
| Manufacturer | nVidia | nVidia |
| Year | October 2010 | October 2010 |
| Code Name | GF106 | GF106 |
| Memory | 1536 MB | 3072 MB |
| Core Speed | 594 MHz | 594 MHz |
| Memory Speed | 1800 MHz | 1800 MHz |
| Power (Max TDP) | 56 watts | 56 watts |
| Bandwidth | 43200 MB/sec | 43200 MB/sec |
| Texel Rate | 14256 Mtexels/sec | 14256 Mtexels/sec |
| Pixel Rate | 14256 Mpixels/sec | 14256 Mpixels/sec |
| Unified Shaders | 144 | 144 |
| Texture Mapping Units | 24 | 24 |
| Render Output Units | 24 | 24 |
| Bus Type | GDDR3 | GDDR3 |
| Bus Width | 192-bit | 192-bit |
| Fab Process | 40 nm | 40 nm |
| Transistors | 1170 million | 1170 million |
| Bus | PCIe x16 | PCIe x16 |
| DirectX Version | DirectX 11 | DirectX 11 |
| OpenGL Version | OpenGL 4.1 | OpenGL 4.1 |
Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of MB per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better 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 can be processed per second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.
GeForce GT 440 1.5GBAmazon.com
Check prices at:
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GeForce GT 440 3GBAmazon.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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