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GeForce GT 440 1.5GB vs Radeon HD 4850 1GB
Intro
The GeForce GT 440 1.5GB makes use of a 40 nm design. nVidia has clocked the core speed at 594 MHz. The GDDR3 memory runs at a speed of 900 MHz on this specific card. It features 144 SPUs as well as 24 TAUs and 24 Rasterization Operator Units.Compare those specifications to the Radeon HD 4850 1GB, which features a core clock frequency of 625 MHz and a GDDR4 memory frequency of 993 MHz. It also features a 256-bit memory bus, and uses a 55 nm design. It is made up of 800(160x5) SPUs, 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 4850 1GB |
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110 Watts |
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Memory Bandwidth
The Radeon HD 4850 1GB, in theory, should perform quite a bit faster than the GeForce GT 440 1.5GB in general. (explain)
| Radeon HD 4850 1GB |
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63552 MB/sec |
| GeForce GT 440 1.5GB |
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43200 MB/sec |
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Texel Rate
The Radeon HD 4850 1GB will be quite a bit (more or less 75%) better at anisotropic filtering than the GeForce GT 440 1.5GB. (explain)| Radeon HD 4850 1GB |
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25000 Mtexels/sec |
| GeForce GT 440 1.5GB |
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14256 Mtexels/sec |
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Pixel Rate
The GeForce GT 440 1.5GB is a lot (about 43%) more effective at FSAA than the Radeon HD 4850 1GB, and also able to handle higher screen resolutions better. (explain)| GeForce GT 440 1.5GB |
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14256 Mpixels/sec |
| Radeon HD 4850 1GB |
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10000 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 4850 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 4850 1GB |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | October 2010 | Jun 25, 2008 |
| Code Name | GF106 | RV770 PRO |
| Memory | 1536 MB | 1024 MB |
| Core Speed | 594 MHz | 625 MHz |
| Memory Speed | 1800 MHz | 1986 MHz |
| Power (Max TDP) | 56 watts | 110 watts |
| Bandwidth | 43200 MB/sec | 63552 MB/sec |
| Texel Rate | 14256 Mtexels/sec | 25000 Mtexels/sec |
| Pixel Rate | 14256 Mpixels/sec | 10000 Mpixels/sec |
| Unified Shaders | 144 | 800(160x5) |
| Texture Mapping Units | 24 | 40 |
| Render Output Units | 24 | 16 |
| Bus Type | GDDR3 | GDDR4 |
| 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: Memory bandwidth is the max amount of information (in units of MB per second) that can be transferred across the external memory interface in one 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 should be multiplied by 2 once 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, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.
Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called 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, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.
GeForce GT 440 1.5GBAmazon.com
Check prices at:
|
Radeon HD 4850 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.
|
Comments
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