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GeForce GTS 450 1GB vs Radeon HD 4850 1GB
Intro
The GeForce GTS 450 1GB uses a 40 nm design. nVidia has set the core frequency at 783 MHz. The GDDR5 memory works at a speed of 902 MHz on this model. It features 192 SPUs as well as 32 Texture Address Units and 16 Rasterization Operator Units.Compare those specifications to the Radeon HD 4850 1GB, which has core speeds of 625 MHz on the GPU, and 993 MHz on the 1024 MB of GDDR4 memory. It features 800(160x5) SPUs along with 40 Texture Address Units and 16 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GTS 450 1GB |
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106 Watts |
| Radeon HD 4850 1GB |
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110 Watts |
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Memory Bandwidth
In theory, the Radeon HD 4850 1GB should be a little bit faster than the GeForce GTS 450 1GB overall. (explain)
| Radeon HD 4850 1GB |
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63552 MB/sec |
| GeForce GTS 450 1GB |
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57728 MB/sec |
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Texel Rate
The GeForce GTS 450 1GB should be a bit (more or less 0%) faster with regards to anisotropic filtering than the Radeon HD 4850 1GB. (explain)| GeForce GTS 450 1GB |
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25056 Mtexels/sec |
| Radeon HD 4850 1GB |
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25000 Mtexels/sec |
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Pixel Rate
The GeForce GTS 450 1GB will be quite a bit (more or less 25%) better at anti-aliasing than the Radeon HD 4850 1GB, and will be capable of handling higher screen resolutions better. (explain)| GeForce GTS 450 1GB |
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12528 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 GTS 450 1GBAmazon.com
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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 GTS 450 1GB | Radeon HD 4850 1GB |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | September 2010 | Jun 25, 2008 |
| Code Name | GF106 | RV770 PRO |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 783 MHz | 625 MHz |
| Memory Speed | 3608 MHz | 1986 MHz |
| Power (Max TDP) | 106 watts | 110 watts |
| Bandwidth | 57728 MB/sec | 63552 MB/sec |
| Texel Rate | 25056 Mtexels/sec | 25000 Mtexels/sec |
| Pixel Rate | 12528 Mpixels/sec | 10000 Mpixels/sec |
| Unified Shaders | 192 | 800(160x5) |
| Texture Mapping Units | 32 | 40 |
| Render Output Units | 16 | 16 |
| Bus Type | GDDR5 | GDDR4 |
| Bus Width | 128-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 (counted in MB per second) that can be moved over the external memory interface within a second. It's worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's 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 texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better 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 amount of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.
GeForce GTS 450 1GBAmazon.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
2 Responses to “GeForce GTS 450 1GB vs Radeon HD 4850 1GB”all card must be given supper permanence. i think all card is excellence.if i gift the card i update my pc......................
all 4800 series are all 256 bit ?