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1GB GDDR5 Memory 128 Gbps memory bandwidth (maximum) 1.5 TFLOPS compute power Double slot form factor TeraScale 2 Unified Processing Architecture 960 Stream Processors48 Texture Units128 Z/Stencil ROP Units32 Color ROP Units PCI Express® 2.1 x16 bus interface "Eye-Definition" graphics DirectX® 11 support Shader Model 5.0DirectCompute 11Programmable hardware tessellation unitAccelerated multi-threadingHDR texture compressionOrder-independent transparency OpenGL 4.1 supportImage quality enhancement technology Up to 24x multi-sample and super-sample anti-aliasing modesAdaptive anti-aliasingMorphological anti-aliasing (MLAA)16x angle independent anisotropic texture filtering128-bit floating point HDR rendering AMD Eyefinity multi-display technology1 Independent resolutions, refresh rates, color controls, and video overlaysDisplay grouping Combine multiple displays to behave like a single large display AMD EyeSpeed visual acceleration2 AMD Accelerated Parallel Processing (APP) technology3,4 OpenCL 1.1DirectCompute 11Accelerated video encoding, transcoding, and upscaling UVD 3 dedicated video playback accelerator MPEG-4 AVC/H.264VC-1MPEG-2 (SD & HD)Multi-View Codec (MVC)MPEG-4 part 2 (DivX, Xvid)Adobe Flash Enhanced Video Quality features Advanced post-processing and scalingDynamic contrast enhancement and color correctionBrighter whites processing (Blue Stretch)Independent video gamma controlDynamic video range control Dual-stream HD (1080p) playback supportDXVA 1.0 & 2.0 support AMD HD3D technology5 Stereoscopic 3D display/glasses supportBlu-ray 3D supportStereoscopic 3D gaming3rd party Stereoscopic 3D middleware software support AMD CrossFireXTM multi-GPU technology6 Dual GPU scaling Cutting-edge integrated display support DisplayPort 1.2 Max resolution: 2560x1600 per displayMulti-Stream Transport21.6 Gbps bandwidthHigh bit-rate audio HDMI 1.4a with Stereoscopic 3D Frame Packing Format, Deep Color, xvYCC wide gamut support, and high bit-rate audio Max resolution: 1920x1200 Dual-link DVI with HDCP Max resolution: 2560x1600 VGA Max resolution: 2048x1536 Integrated HD audio controller Output protected high bit rate 7.1 channel surround sound over HDMI with no additional cables requiredSupports AC-3, AAC, Dolby TrueHD and DTS Master Audio formats AMD PowerPlayTM power management technology4 Dynamic power management with low power idle stateUltra-low power state support for multi-GPU configurations AMD CatalystTM graphics and HD video configuration software Unified graphics display drivers Certified for Windows 7, Windows Vista, and Windows XP AMD Catalyst Control CenterTM Software application and user interface for setup, configuration, and accessing special features of AMD Radeon products. AMD Eyefinity technology works with games that support non-standard aspect ratios, which is required for panning across multiple displays. To enable more than two displays, additional panels with native DisplayPortTM connectors, and/or DisplayPortTM compliant active adapters to convert your monitor's native input to your cards DisplayPortTM or Mini-DisplayPort? connector(s), are required. SLS ("Single Large Surface") functionality requires an identical display resolution on all configured displays.AMD EyeSpeed is a set of technologies designed to improve video quality and enhance application performance. Full enablement of some features requires support for AMD Accelerated Parallel Processing (APP) technology and/or AMD's Universal Video Decoder (UVD).AMD PowerPlayTM and AMD Accelerated Parallel Processing (APP) are technology platforms that include a broad set of capabilities offered by certain AMD Radeon? HD GPUs. Not all products have all features and full enablement of some capabilities and may require complementary products.Requires application support for AMD Accelerated Parallel Processing (APP) technology. AMD Accelerated Parallel Processing technology works with applications designed to take advantage of its GPU acceleration capabilities.AMD HD3D is a technology designed to enable stereoscopic 3D support in games, movies and/or photos. Requires 3D stereo drivers, glasses, and display.AMD CrossFireX? technology requires an AMD CrossFireX Ready motherboard, an AMD CrossFireXTM Bridge Interconnect (for each additional graphics card) and may require a specialized power supply. The entire information provided herein are for reference only. PowerColor reserves the right to modify or revise the content at anytime without prior notice.
Graphics Engine RADEON HD6850 Video Memory 1GB GDDR5 Engine Clock 775MHz Memory Clock 1000MHz (4.0Gbps) Memory Interface 256bit DirectX® Support 11 Bus Standard PCIE 2.1 Standard Display Connecors DL-DVI-I/SL-DVI-D/HDMI/Display Port Feature Support OpenGL Support CrossFireX™ Technology Support ATI Stream Technology Support ATI Eyefinity Technology Support ATI Hypermemory Technology Display Support VGA Output Via Adapter DVI Output DL-DVI-I/ SL-DVI-D DisplayPort On Board HDMI On Board TV Output HDTV Output HDCP Support Support Maximum Resolution VGA 2048x1536 DVI 2560x1600 DisplayPort 2560x1600 HDMI 1920x1200 Power Specs + Board Dimensions Board Dimensions 215.9mmx111.2mmx38mm Minimum System Power requirement (W) 500W Extention Power Connector One 6-Pin PCI Express Power connector
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Messages about Powercolor Radeon HD 6850 775MHZ 1GB 4.0GHZ GDDR5 2XDVI DisplayPort HDMI PCI-E Video Card
Wheres the coupons?
(Patrick_H- Feb 28, 12, 4 Replies)
Powercolour 6850 fan noise
(Clayton_S- Feb 12, 12, 3 Replies)
So how hot is hot?
(Alter Ego- Feb 10, 12, 14 Replies)
does this come with a free Dirt 3?
(Matthew_H- Feb 04, 12, 3 Replies)
(Oliver_D- Dec 30, 11, 1 Replies)
(Xuan Vu_P- Dec 11, 11, 3 Replies)
Not recognized as 6850
(yodasmith00- Nov 26, 11, 7 Replies)
Will this be a good upgrade from crossfired 4670&
(David_C- Oct 27, 11, 3 Replies)
(Sukh_G- Oct 05, 11, 3 Replies)
video card upgrade
(David_B- Oct 03, 11, 2 Replies)
Will a 500W PSU be enough for this card?
(Chris_C- Oct 01, 11, 7 Replies)
Correct Memory Type?
(Christopher_H- Sep 18, 11, 4 Replies)
Comes with Deus Ex Human Revolution AND Shogun 2?
(Alexander_D- Aug 17, 11, 1 Replies)
Crossfire Issue
(Jaywed- Jul 02, 11, 0 Replies)
what is better 6850 or 6870
(alick_l- Apr 23, 11, 9 Replies)
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Technical aspects using virtual and augmented reality for cerebral cavernoma surgery
Technische Gesichtspunkte des Einsatzes von virtueller und erweiterter Realität in der Chirurgie zerebraler Kavernome
Suche in Medline nach
|11. April 2007
Objective: Precise and sophisticated preoperative virtual reality surgery planning combined with modern intraoperative navigation systems and using intraoperative augmented reality should make a contribution to optimizing cavernoma surgery by identifying the ideal approach to reach the lesion as atraumatically as possible.
Methods: From 12/02 until 11/05 we performed 21 cases of cavernoma surgery planning using virtual reality. In 16 of the 21 presented cases we used intraoperative neuronavigation and augmented reality. Our control series consists of 45 patients undergoing cavernoma surgery over the same period. In 27 of those 45 cases neuronavigation was used intraoperatively. We used the Dextroscope, the DextroBeam and the RadioDexter Software of VolumeInteractions, Singapore for building and presenting the virtual reality model. We used the VectorVision neuronavigation system registration of BrainLab, Germany. We used a navigated NC4 microscope of CarlZeiss, Germany. The cavernoma was outlined using the iPlan software of BrainLab, Germany and was this image was injected into the surgeon's ocular.
Results: The mean value of the time spent for creating the virtual reality model was 84 minutes. In all 21 cases we were able to find an optimally suited approach. The mean time spent for positioning the patient was 52 minutes. In the control group the time for positioning was 47 minutes. The duration of surgery in the study group was 144 minutes. In our control group, we found a duration of 110 minutes. The virtual reality model proved to be precise. Augmented reality aided in finding the borders of the cavernoma avoiding the surgeon to take his eyes of the microscopic image. All surgeons reported on a feeling of enhanced self confidence intraoperatively after having planned surgery with the aid of virtual reality.
Conclusions: Planning of cavernoma surgery in a virtual reality environment provides a safe and efficient means of preparing difficult three dimensional procedures and leads to a better spatial understanding of complex pathoanatomical situations. It offers the possibility to preoperatively plan different approaches thus giving the surgeon the option of finding the optimally suited approach for the specific case. We were able to establish a novel method of planning and performing cavernoma surgery using state of the art techniques that in this consequence have not been reported on before.

subset: commoncrawl


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Though Virginia Tech had its most dominating win of the year over in-state rival Virginia on Saturday, the Hokies saw their slim national championship hopes end with the release of the latest Bowl Championship Series standings Sunday night.
The Hokies remained at No. 5 despite Arkansas's loss to LSU on Friday as Stanford jumped from No. 6 to No. 4 in this week's rankings. There's also now a wide margin separating Stanford and Virginia Tech after the Cardinal's win over Notre Dame this weekend.
The Hokies were No. 3 in this week's coaches' poll — one spot ahead of the Cardinal — and No. 4 in the Harris poll, which make up two-thirds of the BCS formula. But Virginia Tech was ranked No. 10 in the country according to the six computer models used by the BCS, and none had Virginia Tech rated higher than No. 8. One computer ranking — the Sagarin Ratings — has the Hokies as the No. 18 team in the country.
Even if Virginia Tech were ranked ahead of Stanford, its chances of making the BCS national championship would still be virtually nonexistent. No. 1 LSU is unlikely to drop below No. 2 in the BCS standings even if it loses to Georgia in next week's SEC championship game and No. 2 Alabama is done with its regular season after beating Auburn in the Iron Bowl.
During a teleconference for the ACC championship game, Coach Frank Beamer said once again that he is a proponent of a plus-one model, which would create two national semifinal games followed by a matchup between the country's two best teams. But he conceded that idea might also cause some controversy this year.
"You look at it and there's some one-loss teams there that I think are really good," Beamer said. "This might be one of those years where there's more than four, but generally speaking I think there's about four teams that have a chance to win a national championship."
None of this BCS talk seems to bother the Hokies' coaching staff, though. When told Sunday evening that the Cardinal had moved ahead of Virginia Tech in the rankings, both offensive coordinator Bryan Stinespring and running backs coach Shane Beamer barely flinched, saying "We're just trying to get ready for Clemson."
The Hokies will face the Tigers in the ACC championship game Saturday in Charlotte. But even though Clemson beat the Hokies, 23-3, in Blacksburg on Oct. 1, some of the luster has been taken off this rematch.
Clemson's loss to South Carolina on Saturday night was its third in four games and dropped the Tigers to No. 21 in this week's Associated Press poll. In the past two contests, Clemson's offensive line has allowed 11 sacks and it seems to have bothered quarterback Tajh Boyd.
Since the Tigers improved to 8-0 on Oct. 22, Boyd has thrown seven interceptions and just four touchdown passes. Compare that to the first eight games of the year when Boyd had 24 touchdowns and just three interceptions.
"I'm not naive enough to think that you're going to have a first-year quarterback and it's going to be all perfect for him. I tried the best I could to prepare him for that," Clemson Coach Dabo Swinney said of Boyd. "At Clemson, when you have that kind of success, there's a lot of 'atta boys' that come with it and all of a sudden then you start having not-so-good performances, and you get that added pressure, and when you're a young player sometimes you don't handle it quite like you need to."
The Hokies, meanwhile, haven't lost since that setback against the Tigers. But as Swinney pointed out several times Sunday, this championship game is a chance for Clemson to wipe its slate clean after a disappointing finish to the regular season.
The winner will head to the Orange Bowl and likely face the Big East champion (either West Virginia, Louisville or Cincinnati). The loser will likely head to the Chick-Fil-A Bowl in Atlanta to face an SEC foe (the top candidates are Auburn or Florida, but that could change depending on whether Georgia wins its conference title game).
"It's kind of like a tale of two different stories right now," Swinney said of his team. "Regardless of what's happened, you play your whole season to kind of jockey for the best postseason opportunity you can have. We've both earned the right to be in this game, and like I say, it's irrelevant what we've done, good or bad. You know it's about this game Saturday night and trying to find a way to win it, and that's what we're going to try to do."