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GeForce GT 440 1.5GB vs Radeon HD 4870 2GB
Intro
The GeForce GT 440 1.5GB comes with a clock frequency of 594 MHz and a GDDR3 memory frequency of 900 MHz. It also uses a 192-bit bus, and makes use of a 40 nm design. It features 144 SPUs, 24 TAUs, and 24 Raster Operation Units.Compare those specifications to the Radeon HD 4870 2GB, which features core clock speeds of 750 MHz on the GPU, and 900 MHz on the 2048 MB of GDDR5 memory. It features 800(160x5) SPUs as well as 40 Texture Address Units 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 4870 2GB |
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150 Watts |
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Memory Bandwidth
In theory, the Radeon HD 4870 2GB is 167% quicker than the GeForce GT 440 1.5GB in general, due to its greater data rate. (explain)
| Radeon HD 4870 2GB |
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115200 MB/sec |
| GeForce GT 440 1.5GB |
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43200 MB/sec |
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Texel Rate
The Radeon HD 4870 2GB will be much (about 110%) better at AF than the GeForce GT 440 1.5GB. (explain)| Radeon HD 4870 2GB |
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30000 Mtexels/sec |
| GeForce GT 440 1.5GB |
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14256 Mtexels/sec |
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Pixel Rate
If using high levels of AA is important to you, then the GeForce GT 440 1.5GB is the winner, but not by far. (explain)| GeForce GT 440 1.5GB |
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14256 Mpixels/sec |
| Radeon HD 4870 2GB |
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12000 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 4870 2GBAmazon.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 4870 2GB |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | October 2010 | Jun 25, 2008 |
| Code Name | GF106 | RV770 XT |
| Memory | 1536 MB | 2048 MB |
| Core Speed | 594 MHz | 750 MHz |
| Memory Speed | 1800 MHz | 3600 MHz |
| Power (Max TDP) | 56 watts | 150 watts |
| Bandwidth | 43200 MB/sec | 115200 MB/sec |
| Texel Rate | 14256 Mtexels/sec | 30000 Mtexels/sec |
| Pixel Rate | 14256 Mpixels/sec | 12000 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 | 956 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: Bandwidth is the largest amount of information (counted in MB per second) that can be transported across the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total number 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 per second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.
GeForce GT 440 1.5GBAmazon.com
Check prices at:
|
Radeon HD 4870 2GBAmazon.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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