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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 clocked the core frequency at 594 MHz. The GDDR3 RAM is set to run at a speed of 900 MHz on this model. It features 144 SPUs as well as 24 Texture Address Units and 24 ROPs.Compare all of that to the GeForce GT 440 3GB, which makes use of a 40 nm design. nVidia has set the core frequency at 594 MHz. The GDDR3 memory runs at a speed of 900 MHz on this card. It features 144 SPUs along with 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 AF. (explain)Pixel Rate
Both cards have exactly the same pixel rate, so in theory 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: Bandwidth is the max amount of information (in units of megabytes per second) that can be moved over the external memory interface in a second. It is worked out by multiplying the bus width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster 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 are applied in one second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.
Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.
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.
|
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