AMD vs Nvidia: 10 Videocards Go Head-to-Head
A new generation of GPUs from Nvidia and AMD has hit the streets. Both camps are offering incredible performance and the widest array of features ever before seen in graphics cards. But, inevitably, each side brings its own unique strengths and weaknesses. What better way to determine the performance champ than by letting this season’s new crop of cards duke it out in the various price categories?
On one side is AMD, the self-proclaimed master of efficiency, looking to hold onto the glory it grabbed when it shipped the original Radeon HD 5870—a surprise contender that knocked former champ Nvidia to the canvas at the time by offering DirectX 11 feature sets at impressive performance levels without requiring a nuclear reactor to power it.

On the other side is Nvidia, looking to score a comeback. When Nvidia finally shipped its long-awaited Fermi, it managed to retake the performance crown, but with an asterisk next to the record, since it was forced to ship an incomplete chip that required massive power draws. Even then, AMD’s GPUs stayed close, while its dual-GPU HD 5970 dominated performance overall—but only when games took advantage of AMD’s CrossFire X dual-GPU capability.
Now it’s rematch time—a day of reckoning between the shiny, redesigned, and ready-to-rumble Fermis from Nvidia and AMD’s new Radeon HD 6000 series. While Nvidia’s new parts are streamlined versions of the original Fermi, more efficient and full-featured, AMD’s new GPUs have been completely re-architected from scratch. Can new AMD designs deliver a winning blow to Nvidia’s modernized GPUs?
The fight card includes battles in every price class, featuring a representative selection of cards. Contenders will be hit with a boatload of different games and benchmarks, as well as power-draw tests.
Whether they end in close calls or clear KOs, the results of these bouts will determine the videocard you choose for your next rig. Let’s take this party ringside, shall we?
The Technical Decision
What features and capabilities to look for in today’s graphics contenders
If you’re looking for a graphics card today, the decision is more difficult than ever. The two primary suppliers of graphics processors, AMD and Nvidia, have taken decidedly different paths, even as they add more robust support for new graphics and GPU-compute programming interfaces.
DirectX 11
Both AMD and Nvidia support Microsoft’s latest DirectX 11 graphics standard. So far, all DirectX 11 games have run well on both, though some run faster on Nvidia and others faster on AMD. So, you can feel comfortable that either AMD or Nvidia should be fine if you’re looking to run the latest games.

Both AMD and Nvidia are strong players when it comes to DX11 games.
Display Support
On the AMD side, the Radeon HD 6000 line of graphics chips continues to support a minimum of three displays with a single card, just as the older HD 5000 series did. However, all HD 6000 cards have DisplayPort 1.2 built in. What that means is that monitors with DisplayPort 1.2 support can be daisy-chained, so that one card can drive up to six LCD panels. Nvidia’s support for DisplayPort has been lukewarm on consumer graphics cards, but individual card manufacturers have occasionally added DisplayPort connectors. Almost all monitors still ship with DVI connectors, though, so if you’re running one or two monitors, you’re in good shape with a single Nvidia card.
Stereoscopic 3D
AMD has just begun adding stereoscopic 3D capability; the new Radeon HD 6000 series cards support stereoscopic 3D. In both games and Blu-ray movies, though, glasses must be obtained from third parties. Nvidia’s 3DVision offers robust stereoscopic 3D support, provided you’ve also got a PC monitor capable of running at the required 120Hz refresh rate. In addition, if you’re running an SLI setup, you can use 3DVision across three monitors, and the effect can be pretty startling. A system with an Nvidia card can connect to an HDTV and allow that TV’s native stereoscopic capability to work with the PC.

Nvidia has a clear lead in terms of 3D movies and games. AMD needs to catch up.
GPU Compute
If you’re into GPU-compute applications, Nvidia still has the edge here. While newer applications are moving toward multi-vendor standards like DirectCompute and OpenCL, a large library of applications exists for Nvidia’s proprietary CUDA GPU-compute architecture, including the recently released Adobe Premiere Pro CS5’s Mercury Playback Engine.
Physics
Nvidia has worked mightily to get game programmers to incorporate its PhysX technology, but only a few games really support it well. We’re starting to see more open APIs that support OpenCL, like Bullet Physics, arrive on the scene. Already, 3DMark 2011 is shipping with Bullet Physics support, and it’s likely we’ll see a variety of new games ship with Bullet Physics.
Power Consumption
Nvidia’s made some substantial strides in improving power efficiency, but cards using AMD GPUs still tend to consume less power. If you can save $50 a year in electricity, that could mean an additional game you can buy.
HD Video Encoding
While both cards support HD video decoding, AMD’s third-generation Unified Video Decoder (UVD3) offers hardware decoding of key HD codecs, including VC-1 and H.264. It also handles MPEG-2 and MPEG-4 Part 2, including DivX and xVid in hardware. AMD also supports hardware-accelerated transcoding in its fixed-function UVD3, with the ability to convert H.264 and MPEG-2 1080p streams to a different H.264 or MPEG-2 target bitrate and resolution.