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GeForce GTX 550 Ti vs Radeon HD 6850

Intro

The GeForce GTX 550 Ti comes with a GPU core clock speed of 900 MHz, and the 1024 MB of GDDR5 memory runs at 1026 MHz through a 192-bit bus. It also is comprised of 192 SPUs, 32 Texture Address Units, and 24 Raster Operation Units.

Compare those specifications to the Radeon HD 6850, which has GPU clock speed of 775 MHz, and 1024 MB of GDDR5 memory set to run at 1000 MHz through a 256-bit bus. It also features 960 SPUs, 48 Texture Address Units, and 32 ROPs.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 550 Ti 116 Watts
Radeon HD 6850 127 Watts
Difference: 11 Watts (9%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6850 should perform much faster than the GeForce GTX 550 Ti overall. (explain)

Radeon HD 6850 128000 MB/sec
GeForce GTX 550 Ti 98496 MB/sec
Difference: 29504 (30%)

Texel Rate

The Radeon HD 6850 will be much (about 29%) better at AF than the GeForce GTX 550 Ti. (explain)

Radeon HD 6850 37200 Mtexels/sec
GeForce GTX 550 Ti 28800 Mtexels/sec
Difference: 8400 (29%)

Pixel Rate

The Radeon HD 6850 is a little bit (more or less 15%) better at full screen anti-aliasing than the GeForce GTX 550 Ti, and will be able to handle higher resolutions without slowing down too much. (explain)

Radeon HD 6850 24800 Mpixels/sec
GeForce GTX 550 Ti 21600 Mpixels/sec
Difference: 3200 (15%)

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 GTX 550 Ti

Amazon.com

Radeon HD 6850

Amazon.com

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 GTX 550 Ti Radeon HD 6850
Manufacturer nVidia AMD
Year March 2011 October 2010
Code Name GF116 Barts Pro
Fab Process 40 nm 40 nm
Bus PCIe 2.1 x16 PCIe x16
Memory 1024 MB 1024 MB
Core Speed 900 MHz 775 MHz
Shader Speed 1800 MHz (N/A) MHz
Memory Speed 1026 MHz (4104 MHz effective) 1000 MHz (4000 MHz effective)
Unified Shaders 192 960
Texture Mapping Units 32 48
Render Output Units 24 32
Bus Type GDDR5 GDDR5
Bus Width 192-bit 256-bit
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1
Power (Max TDP) 116 watts 127 watts
Shader Model 5.0 5.0
Bandwidth 98496 MB/sec 128000 MB/sec
Texel Rate 28800 Mtexels/sec 37200 Mtexels/sec
Pixel Rate 21600 Mpixels/sec 24800 Mpixels/sec

Memory Bandwidth: Bandwidth is the largest amount of data (measured in megabytes per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, 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 could possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Comments

7 Responses to “GeForce GTX 550 Ti vs Radeon HD 6850”
[...] Voor die prijs kan je beter een AMD 6850 kopen, die is op alle vlakken zowat beter voor evenveel geld : GeForce GTX 550 Ti vs Radeon HD 6850 – Performance Comparison Benchmarks @ Hardware Compare [...]
needhelp says:
Can someone tell me what is better gainward 550 ti GS or his hd 6850 iceq x turbo ? Also will a psu raidmax 520w be enough for either of them ?
other components : regular motherboard (from msi), 2 hdds 7200 rpm , 4 gb ram kingston, intel duo core at 2.66 ghz (2 cpus) ...
Enam says:
450 w will do just fine
[...] Which graphics card is better? Looks to me like the 6850 wins - GeForce GTX 550 Ti vs Radeon HD 6850 – Performance Comparison Benchmarks @ Hardware Compare but the GTX 550 Ti is a tiny bit cheaper. My Custom-Built PC Core i5 760 2.8GHz, 8GB DDR3 [...]
[...] teniendo la 6850 a 115€, para que te hagas una idea de la diferencia por el mismo precio: GeForce GTX 550 Ti vs Radeon HD 6850 ***8211; Performance Comparison Benchmarks @ Hardware Compare Por ese mismo precio tienes este (con lo que comente justo antes), aunque como parece que no te [...]
Hyrulien says:
It is very important to remember some games prefer AMD cards while other games prefer NVIDIA. For example the HD6850 plays planetside 2 like a dream on 1080p medium high settings, I have yet to try max settings. But on other games like RIFT you might have a slight performance boost with the 550ti I cannot go into details right now but just my 2 cents.Most of the time poorly desgined mmorpgs like rift or pwi use peoples internet speed more then there gpu. Other games that are well designed like wow and gw2 use your gpu more efficiently.

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