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GeForce GT 440 1.5GB vs GeForce GT 440 3GB
Intro
The GeForce GT 440 1.5GB uses a 40 nm design. nVidia has set the core speed at 594 MHz. The GDDR3 memory is set to run at a speed of 900 MHz on this particular model. It features 144 SPUs as well as 24 TAUs and 24 Rasterization Operator Units.Compare those specs to the GeForce GT 440 3GB, which uses a 40 nm design. nVidia has clocked the core frequency at 594 MHz. The GDDR3 memory works at a speed of 900 MHz on this particular card. It features 144 SPUs as well as 24 Texture Address Units and 24 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Both cards have the same power consumption.Memory Bandwidth
Both cards have the exact same memory bandwidth, so in theory they should perform exactly the same. (explain)
Texel Rate
Both cards have the exact same texel rate, so in theory they should be equally good at at anisotropic filtering. (explain)Pixel Rate
Both cards have the exact same pixel fill rate, so in theory they should be equally good at at full screen anti-aliasing, and be able to handle the same screen 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 max amount of information (in units of MB per second) that can be moved across the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the card will be at handling 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 card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.
GeForce GT 440 1.5GBAmazon.com
Check prices at:
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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.
|
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