VisionTek Radeon HD 6850 Video Card

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

Page 3 of 13

Radeon Features

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

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Comments

# RE: VisionTek Radeon HD 6850 Video Card — kzinti1 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 Card — Computer 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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# Appearances — Hank 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 Card — Riley 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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