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GeForce GT 420 vs GeForce GT 440 1.5GB
Intro
The GeForce GT 420 features core speeds of 700 MHz on the GPU, and 900 MHz on the 2048 MB of GDDR3 memory. It features 48 SPUs along with 8 TAUs and 4 Rasterization Operator Units.Compare that to the GeForce GT 440 1.5GB, which comes with core speeds of 594 MHz on the GPU, and 900 MHz on the 1536 MB of GDDR3 memory. It features 144 SPUs along with 24 Texture Address Units and 24 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GT 420 |
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50 Watts |
| GeForce GT 440 1.5GB |
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56 Watts |
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Memory Bandwidth
In theory, the GeForce GT 440 1.5GB should be 50% quicker than the GeForce GT 420 overall, due to its higher bandwidth. (explain)
| GeForce GT 440 1.5GB |
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43200 MB/sec |
| GeForce GT 420 |
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28800 MB/sec |
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Texel Rate
The GeForce GT 440 1.5GB should be much (about 155%) better at AF than the GeForce GT 420. (explain)| GeForce GT 440 1.5GB |
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14256 Mtexels/sec |
| GeForce GT 420 |
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5600 Mtexels/sec |
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Pixel Rate
If using a high screen resolution is important to you, then the GeForce GT 440 1.5GB is superior to the GeForce GT 420, by far. (explain)| GeForce GT 440 1.5GB |
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14256 Mpixels/sec |
| GeForce GT 420 |
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2800 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 420Amazon.com
Check prices at:
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GeForce GT 440 1.5GBAmazon.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 420 | GeForce GT 440 1.5GB |
|---|---|---|
| Manufacturer | nVidia | nVidia |
| Year | September 2010 | October 2010 |
| Code Name | GF108 | GF106 |
| Memory | 2048 MB | 1536 MB |
| Core Speed | 700 MHz | 594 MHz |
| Memory Speed | 1800 MHz | 1800 MHz |
| Power (Max TDP) | 50 watts | 56 watts |
| Bandwidth | 28800 MB/sec | 43200 MB/sec |
| Texel Rate | 5600 Mtexels/sec | 14256 Mtexels/sec |
| Pixel Rate | 2800 Mpixels/sec | 14256 Mpixels/sec |
| Unified Shaders | 48 | 144 |
| Texture Mapping Units | 8 | 24 |
| Render Output Units | 4 | 24 |
| Bus Type | GDDR3 | GDDR3 |
| Bus Width | 128-bit | 192-bit |
| Fab Process | 40 nm | 40 nm |
| Transistors | 585 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 maximum amount of data (in units of megabytes per second) that can be transferred past the external memory interface in one second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type 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 anti-aliasing, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.
Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on 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 reach the maximum fill rate.
GeForce GT 420Amazon.com
Check prices at:
|
GeForce GT 440 1.5GBAmazon.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.
|
Comments
2 Responses to “GeForce GT 420 vs GeForce GT 440 1.5GB”[...] (De linkse is die van de Acer, de rechtse van de HP) Hier is de vergelijking van de GPU's: GeForce GT 420 vs GeForce GT 440 1.5GB – Performance Comparison Benchmarks @ Hardware Compare Ik hoop dat jullie me kunnen helpen Jullie mogen ook een andere computer voorstellen met [...]
Err, according to GPU-Z, my GT420 is far faster than the oen in the test, even beating the GT440 in one instance... Here's a screenshot:
http://gpuz.techpowerup.com/11/06/25/d09.png