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Written by Hank Tolman   
Thursday, 03 November 2011
Table of Contents: Page Index
VisionTek Radeon HD 6850 Video Card
Closer Look: VisionTek 6850
Features and Specifications
Video Card Testing Methodology
DX10: 3DMark Vantage
DX9 SSAO: Mafia II
DX11: Aliens vs. Predator
DX11: Battlefield: Bad Company 2
DX11: DiRT-2 Demo
DX11: Lost Planet 2
DX11: Unigine Heaven 2.5
MSI R6870 Hawk Temperatures and Overclocking
Conclusion

Radeon FeaturesAMD_Logo_400px.png

  • Microsoft DirectX 11 Support
  • AMD Eyefinity Technology
  • AMD Accelerated Parallel Processing (APP) Technology Designed for DirectCompute 5.0 and OpenCL
  • Accelerate Video Transcoding
  • 40 nm Process Technology
  • Advanced GDDR5 Memory Technology
  • 3rd Generation TeraScale Engine
  • Microsoft Windows 7 Support
  • AMD CrossFireX Technology
  • Enhanced Anisotropic Filtering
  • Accelerated Video Transcoding
  • Display Flexibility, Supports DL-DVI, DP, HDMI and D-Sub
  • HDMI 1.4a support with Deep Color and 7.1 High Bitrate Audio
  • On chip HDCP Support
  • AMD CrossFireX multi-GPU support for highly scalable performance. (Use up to four discrete cards with an AMD 790FX based motherboard)
  • AMD Avivo HD Support
    • ATI Unified Video Decoder 3 (UVD3) for 3D Blu-ray and HD Video.
    • Accelerated Video Transcoding (AVT)
    • DVD Upscaling
    • Dynamic Contrast
    • Built-in HDMI with 7.1 surround sound support
    • Dynamic power management with ATI PowerPlay technology including memory clocks
    • Dolby TrueHD and DTSHD Master Audio Support

AMD Barts GPU Details

  • ATI Radeon HD 5850 has a size of 336 sq.mm, perf/sq.mm = 22.0
  • AMD Radeon HD 6870 has a size of 255 sq.mm, perf/sq.mm = 30.3

6850/6870 Specifications

Reference Design Attribute

Radeon HD 5850

Radeon HD 5870

Radeon HD 6850

Radeon HD 6870

Process

40nm

40nm

40nm

40nm

Transistors

2.15B

2.15B

1.7B

1.7B

Engine Clock

725 MHz

850 MHz

775 MHz

900 MHz

Stream Processors

1440

1600

960

1120

Compute Performance

2.09 TFLOPS

2.72 TFLOPs

1.50 TFLOPs

2.00 TFLOPs

Texture Units

72

80

48

56

Texture Fillrate

52.2 GTexels/s

68.0 GTexel/s

37.2 GTexel/s

50.4 GTexel/s

ROPs

32

32

32

32

Pixel Fillrate

23.2 Gpixel/s

27.2 GPixel/s

24.8 GPixel/s

28.8 GPixel/s

Z/Stencil

92.8 GSamples/s

108.8 GSamples/s

99.2 GSamples/s

128.0 GSamples/s

Memory Type

GDDR5

GDDR5

GDDR5

GDDR5

Memory Clock

1000 MHz

1200 MHz

1000 MHz

1050 MHz

Memory Data Rate

4.0 Gbps

4.8 Gbps

4.0 Gbps

4.2 Gbps

Memory Bandwidth

128.0 GB/s

153.6 GB/s

128.0 GB/s

134.4 GB/s

Maximum Board Power

170W

188W

127W

151W

Idle Board Power

27W

27W

19W

19W



 

Comments 

 
# RE: VisionTek Radeon HD 6850 Video Cardkzinti1 2011-11-08 23:36
Why did you say that this card "Looks pretty dull"? I think it's a quite good looking videocard. It's a lot nicer looking than all the cards with mostly naked pictures of alien women glued all over them. It also looks better than my EVGA GTX 590 which has nothing but "EVGA GTX 590 Classified" written on it and a completely black background. It does have the Nvidia logo and "GeForce" on the side lit up with l.e.d.'s, which really does make it look classy in a subdued manner. Sort of like a nice tuxedo compared to the cheap clown suits as most videocards appear. This Visiontek HD 6850 looks good and expensive, not cheap and gawdy.
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# RE: RE: VisionTek Radeon HD 6850 Video CardComputer Ed 2011-11-10 03:53
I have to agree and ask why this is worthy of a ding on the card. I mean seriously swho spends time looking at their video card, I put it in and use it and then do not care what it looks like.
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# AppearancesHank Tolman 2011-11-10 07:56
Thanks for the responses!

I can appreciate your opinions. Personally, I think it looks pretty dull, but definitely not cheap or gawdy. I have a clear side on my case, and I prefer flashy components.

I just imagined myself walking down the isles of a store and passing right by this card, especially because the box is very plain. It doesn't catch my eye. The card itself is better, but it's still pretty plain. The pictures make it look like the fan might have LEDs, but it doesn't.

Anyway, that's my opinion.

-Hank
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# RE: RE: VisionTek Radeon HD 6850 Video CardRiley 2011-11-10 12:29
i think the fact that it doesn't have the half naked girls and ogres and dragons actually makes this box stand out from the rest of them on the shelf don't you think? I saw a white version of this box at BestBuy and it stood out to my eyes. great review by the way
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# Lol!Hank Tolman 2011-11-11 05:39
You make a good point!

-Hank
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# RE: VisionTek Radeon HD 6850 Video Cardmnc2fan 2011-11-09 22:52
"along with an installion CD.."

Bit of a typo.
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