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Lian Li ist für seine schnörkellosen Aluminiumgehäuse bekannt. Diese sind hervorragend verarbeitet, bieten zahlreiche praktische Detaillösungen und eine zeitlose Eleganz. Allerdings sind sie zumeist auch eckig wie ein alter Volvo. Doch das diesjährige Showcase PC-U6 bricht mit dieser Tradition.
An seinem Stand zeigte MSI neue Grafikkarten seiner Top-Baureihe Lightning, welche die schnellsten Grafikprozessoren von AMD und NVIDIA mit einem eigenen PCB-Design und einer eigenen Kühllösung vereinten. Wir haben uns die MSI R6970 Lightning und die MSI N580GTX Lightning für euch angesehen.
AMD launched the HD6990 today, and KitGuru was at hand to analyse the reference board. We know that discerning readers of KitGuru will want to see how two of these video cards perform in a Dual CrossFireX configuration.
We will be putting two HD6990′s through their paces across single screen, and four screen configurations and comparing them against many of the mainstream boards available on the market today.
So wie es ausschaut, ist im 11.4er Beta-Treiber für die Radeon HD 6990 die AMD Tesselations-Optimierung aktiv und erstmals auch mit Optimierungsprofilen hinterlegt. Damit wird dann der Tesselations-Benchmark Unigine Heaven entsprechend heruntergebremst - das Tesselationslevel wird auch im Extreme-Setting des Benchmarks durch die AMD Tesselations-Optimierung automatisch und ohne weiteren Anwendereingriff auf x4 herunterlimitiert, die Performance steigt dementsprechend an - in unseren Augen ein klarer Cheat zum Gewinnen von Benchmarks. Zudem widerspricht das ganze auch der früheren AMD-Aussage, man habe die AMD Tesselations-Optimierung nur zur Performanceverbesserung von LowCost- und Mainstream-Grafikkarten ersonnen, was auf die Radeon HD 6990 nun mit Sicherheit nicht zutrifft.
AMD is launching today their latest ultra-high-end video card, the Radeon HD 6990, a dual-GPU solution that comes priced at USD 700. Let's check its performance.
Zotac's Geforce GTX 570 does prove that is a direct competitor with any reference based HD 6970 at this given time. Through benchmarking and testing, both videocards won and lost during certain benchmarks and in the end, I can't and will not say one is better than the other. Regardless, Zotac's reference based version of the GTX 570 proved to be a great videocard and proved to work flawlessly right out of the box. The only hindrance would have to be the reference cooler which doesn't seem to be up to the task if you would like to overclock AND keeps things quiet and cool.
Graphics cards have been improving at breakneck speeds over the last little while. The Radeon HD 5000 series allowed AMD and ATI to beat NVIDIA to the punch with DirectX-11 capable video cards. NVIDIA quickly responded with the GTX 400 series which started out hot and powerful, but came back to really define the price point with the GTX460 video card. Along came the GTX 500 series and the Radeon HD 6000 series to fill out some positions and give us a new card for the top end of the performance spectrum. By now, we have all heard about where the different cards lie in regards to performance and price. We are at the point now where there is a slight lull in the production of brand new equipment and manufacturers are focusing on putting their own spin on the different flavors to revitalize stuff that has been on the market a while. In early February, MSI took the Radeon HD 6870 design and made it their own in the MSI R6870 Hawk with the Twin Frozr ! III thermal design and the world's first look into propeller blade cooling technology. Benchmark Reviews is taking an in-depth look at the MSI R6870 Hawk and while testing this factory overclocked video card, we will be examining exactly what makes it unique in a world full of Radeon HD 6000 series cards.
The PCB behind the Radeon HD6870's GPU did get to over 72C, and it washed over a large area of the card with temperatures exceeding 60C. These numbers themselves aren't of much concern, but it does imply that the actual GPU is even higher. An aftermarket cooler may not be necessary, but it should lower those readings by a fair amount.
We're going to keep this short and sweet because we know all you really care about is the results. To quickly summarize exactly what we're doing here today, though, we're firing up the latest beta build of MSI Afterburner and cranking even more volts through the two GPUs that are placed on that single PCB.
The Calibre X580 graphics card offers impressive performance in most games and synthetic benchmarks, comes with a beefy but very efficient (and silent enough) air cooling solution from Arctic Cooling and if that wasn't enough, it is overclocked from the factory (810MHz GPU/ 2016MHz memory)!
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