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GeForce GT 420 vs GeForce GT 440 1.5GB
Intro
The GeForce GT 420 uses a 40 nm design. nVidia has set the core frequency at 700 MHz. The GDDR3 RAM is set to run at a frequency of 900 MHz on this particular card. It features 48 SPUs as well as 8 TAUs and 4 Rasterization Operator Units.Compare those specs to the GeForce GT 440 1.5GB, which comes with clock speeds of 594 MHz on the GPU, and 900 MHz on the 1536 MB of GDDR3 RAM. It features 144 SPUs as well as 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
Theoretically speaking, the GeForce GT 440 1.5GB should perform quite a bit faster than the GeForce GT 420 overall. (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 will be a lot (about 155%) more effective 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 running with a high screen resolution is important to you, then the GeForce GT 440 1.5GB is a better choice, 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: Bandwidth is the maximum amount of data (measured in megabytes per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total number of texture units of the card 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 in a second.
Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs 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 many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.
GeForce GT 420Amazon.com
Check prices at:
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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