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GeForce GTX 550 Ti vs Radeon HD 4850 1GB
Intro
The GeForce GTX 550 Ti has clock speeds of 900 MHz on the GPU, and 1026 MHz on the 1024 MB of GDDR5 memory. It features 192 SPUs as well as 32 TAUs and 24 ROPs.Compare those specs to the Radeon HD 4850 1GB, which comes with a GPU core clock speed of 625 MHz, and 1024 MB of GDDR4 memory running at 993 MHz through a 256-bit bus. It also is comprised of 800(160x5) SPUs, 40 TAUs, and 16 Raster Operation Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 4850 1GB |
|
110 Watts |
| GeForce GTX 550 Ti |
|
116 Watts |
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Memory Bandwidth
In theory, the GeForce GTX 550 Ti should perform quite a bit faster than the Radeon HD 4850 1GB in general. (explain)
| GeForce GTX 550 Ti |
|
98496 MB/sec |
| Radeon HD 4850 1GB |
|
63552 MB/sec |
|
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Texel Rate
The GeForce GTX 550 Ti is a small bit (about 15%) more effective at texture filtering than the Radeon HD 4850 1GB. (explain)| GeForce GTX 550 Ti |
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28800 Mtexels/sec |
| Radeon HD 4850 1GB |
|
25000 Mtexels/sec |
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Pixel Rate
The GeForce GTX 550 Ti is a lot (approximately 116%) better at anti-aliasing than the Radeon HD 4850 1GB, and capable of handling higher resolutions without slowing down too much. (explain)| GeForce GTX 550 Ti |
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21600 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
Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.
GeForce GTX 550 TiAmazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Radeon HD 4850 1GBAmazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Specifications
| Model | GeForce GTX 550 Ti | Radeon HD 4850 1GB |
|---|---|---|
| Manufacturer | nVidia | ATi |
| Year | March 2011 | Jun 25, 2008 |
| Code Name | GF116 | RV770 PRO |
| Fab Process | 40 nm | 55 nm |
| Bus | PCIe 2.1 x16 | PCIe 2.0 x16 |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 900 MHz | 625 MHz |
| Shader Speed | 1800 MHz | (N/A) MHz |
| Memory Speed | 1026 MHz (4104 MHz effective) | 993 MHz (1986 MHz effective) |
| Unified Shaders | 192 | 800(160x5) |
| Texture Mapping Units | 32 | 40 |
| Render Output Units | 24 | 16 |
| Bus Type | GDDR5 | GDDR4 |
| Bus Width | 192-bit | 256-bit |
| DirectX Version | DirectX 11 | DirectX 10.1 |
| OpenGL Version | OpenGL 4.1 | OpenGL 3.0 |
| Power (Max TDP) | 116 watts | 110 watts |
| Shader Model | 5.0 | 4.1 |
| Bandwidth | 98496 MB/sec | 63552 MB/sec |
| Texel Rate | 28800 Mtexels/sec | 25000 Mtexels/sec |
| Pixel Rate | 21600 Mpixels/sec | 10000 Mpixels/sec |
Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in MB per second) that can be transported past the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, 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 texture map elements (texels) that are applied in one second. This is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.
Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.
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