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GeForce GT 340 1GB vs Radeon HD 4850 1GB
Intro
The GeForce GT 340 1GB comes with core clock speeds of 550 MHz on the GPU, and 850 MHz on the 1024 MB of GDDR5 RAM. It features 96 SPUs as well as 32 Texture Address Units and 8 Rasterization Operator Units.Compare that to the Radeon HD 4850 1GB, which features a clock frequency of 625 MHz and a GDDR4 memory frequency of 993 MHz. It also uses a 256-bit bus, and makes use of a 55 nm design. It is comprised of 800(160x5) SPUs, 40 Texture Address Units, and 16 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GT 340 1GB |
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69 Watts |
| Radeon HD 4850 1GB |
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110 Watts |
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Memory Bandwidth
The Radeon HD 4850 1GB should theoretically perform a bit faster than the GeForce GT 340 1GB in general. (explain)
| Radeon HD 4850 1GB |
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63552 MB/sec |
| GeForce GT 340 1GB |
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54400 MB/sec |
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Texel Rate
The Radeon HD 4850 1GB will be quite a bit (more or less 42%) better at anisotropic filtering than the GeForce GT 340 1GB. (explain)| Radeon HD 4850 1GB |
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25000 Mtexels/sec |
| GeForce GT 340 1GB |
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17600 Mtexels/sec |
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Pixel Rate
If running with high levels of AA is important to you, then the Radeon HD 4850 1GB is the winner, and very much so. (explain)| Radeon HD 4850 1GB |
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10000 Mpixels/sec |
| GeForce GT 340 1GB |
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4400 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 340 1GBAmazon.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 340 1GB | Radeon HD 4850 1GB |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | February 2010 | Jun 25, 2008 |
| Code Name | GT215 | RV770 PRO |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 550 MHz | 625 MHz |
| Memory Speed | 3400 MHz | 1986 MHz |
| Power (Max TDP) | 69 watts | 110 watts |
| Bandwidth | 54400 MB/sec | 63552 MB/sec |
| Texel Rate | 17600 Mtexels/sec | 25000 Mtexels/sec |
| Pixel Rate | 4400 Mpixels/sec | 10000 Mpixels/sec |
| Unified Shaders | 96 | 800(160x5) |
| Texture Mapping Units | 32 | 40 |
| Render Output Units | 8 | 16 |
| Bus Type | GDDR5 | GDDR4 |
| Bus Width | 128-bit | 256-bit |
| Fab Process | 40 nm | 55 nm |
| Transistors | 727 million | 956 million |
| Bus | PCIe x16 | PCIe 2.0 x16 |
| DirectX Version | DirectX 10.1 | DirectX 10.1 |
| OpenGL Version | OpenGL 3.3 | OpenGL 3.0 |
Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in MB per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the bus width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 texture map elements (texels) that are applied per second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the graphics 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 the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill 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 ability to reach the max fill rate.
GeForce GT 340 1GBAmazon.com
Check prices at:
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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.
|
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