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GeForce GT 440 1.5GB vs Radeon HD 4890 1GB
Intro
The GeForce GT 440 1.5GB uses a 40 nm design. nVidia has set the core frequency at 594 MHz. The GDDR3 memory works at a frequency of 900 MHz on this card. It features 144 SPUs along with 24 TAUs and 24 Rasterization Operator Units.Compare those specs to the Radeon HD 4890 1GB, which features GPU clock speed of 1000 MHz, and 1024 MB of GDDR5 RAM set to run at 975 MHz through a 256-bit bus. It also is made up of 800(160x5) Stream Processors, 40 TAUs, and 16 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GT 440 1.5GB |
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56 Watts |
| Radeon HD 4890 1GB |
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190 Watts |
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Memory Bandwidth
In theory, the Radeon HD 4890 1GB is 189% faster than the GeForce GT 440 1.5GB overall, due to its higher bandwidth. (explain)
| Radeon HD 4890 1GB |
|
124800 MB/sec |
| GeForce GT 440 1.5GB |
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43200 MB/sec |
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Texel Rate
The Radeon HD 4890 1GB is much (more or less 181%) better at AF than the GeForce GT 440 1.5GB. (explain)| Radeon HD 4890 1GB |
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40000 Mtexels/sec |
| GeForce GT 440 1.5GB |
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14256 Mtexels/sec |
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Pixel Rate
If running with a high screen resolution is important to you, then the Radeon HD 4890 1GB is a better choice, but only just. (explain)| Radeon HD 4890 1GB |
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16000 Mpixels/sec |
| GeForce GT 440 1.5GB |
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14256 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 440 1.5GBAmazon.com
Check prices at:
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Radeon HD 4890 1GBAmazon.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 440 1.5GB | Radeon HD 4890 1GB |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | October 2010 | Apr 2, 2009 |
| Code Name | GF106 | RV790 XT |
| Memory | 1536 MB | 1024 MB |
| Core Speed | 594 MHz | 1000 MHz |
| Memory Speed | 1800 MHz | 3900 MHz |
| Power (Max TDP) | 56 watts | 190 watts |
| Bandwidth | 43200 MB/sec | 124800 MB/sec |
| Texel Rate | 14256 Mtexels/sec | 40000 Mtexels/sec |
| Pixel Rate | 14256 Mpixels/sec | 16000 Mpixels/sec |
| Unified Shaders | 144 | 800(160x5) |
| Texture Mapping Units | 24 | 40 |
| Render Output Units | 24 | 16 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 192-bit | 256-bit |
| Fab Process | 40 nm | 55 nm |
| Transistors | 1170 million | 959 million |
| Bus | PCIe x16 | PCIe 2.0 x16 |
| DirectX Version | DirectX 11 | DirectX 10.1 |
| OpenGL Version | OpenGL 4.1 | OpenGL 3.0 |
Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be moved past the external memory interface in a second. The number is worked out by multiplying the bus width by its memory speed. If the card has DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 amount of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.
Pixel Rate: Pixel rate is the maximum number 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 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 outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially 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
Check prices at:
|
Radeon HD 4890 1GBAmazon.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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