First Look: 3dfx Voodoo 5 Raises the Stakes for Mac Display
Two new models dramatically increase quality, speed and resolution of Mac graphics

by Tim Wilson, Man About Town™
twilson@digitalmedianet.com


 

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As I was on my way to my last scheduled interview at Macworld, I was mentally composing the lead paragraph of my show wrap-up story, and it was going to go something like this:

"While many companies offered interesting products, all of them combined were overshadowed by Apple's announcements of standard multiprocessing CPUs, the G4 Cube and a new mouse."

That's what I was thinking, anyway, until I saw the pictures coming from the two new display cards from 3dfx Interactive, the Voodoo 5 4500 and 5500.

I've been doing Mac graphics professionally for more than a decade, most of that in video, and I have to tell you, I've never seen anything like this before. The richness of the colors I was seeing could have come from the images they selected, and the fact that one of the displays they used for demonstration purposes was the jaw-dropping Apple Cinema display, so I focused elsewhere.

What struck me most on first glance was the depth of the detail I saw and the rock-solid scanning. My observation brought a smile from Brian Speece, who's directing Macintosh business development for 3dfx. "We're displaying 2,048 x 1,536 at 85 Hz," he said. "Nobody else on the Mac can handle a resolution like that at this refresh rate."

That was for 2D, however, using the Voodoo 5 4500 card. While 2D is admittedly almost exclusively what I do, I knew of 3dfx's reputation for, well, 3D. Since the day their products have been introduced, 3dfx's cards have completely dominated the PC gaming market, with the Voodoo 3 card having been the sales leader for the last 12 months. More than just sales, the Voodoo series has dominated with the caliber of their technology.

It's one thing to say that the Voodoo5 was named Macworld's best display by MacWEEK, which it was, but it's saying much more for games that the PC version of this product won recently won best of show from the hard core gamers at the Electronic Entertainment Expo (E3).

The Mac has needed serious 3D display power to be a serious gaming platform. We have it now, thank you very much.

It's really impossible for me to demonstrate just how much better the Voodoo 5 5500 looks than anything you've ever seen on a Macintosh for the simple reason that any pictures I tried to show you would have to be seen on the Mac display card you're using. Oops.

Instead, let me run a few numbers by you. The 4500 card can display 333 megapixels per second, more than any other Mac card, according to Speece. The 5500, though, doubles it: 667,000 pixels per second. This allows display of a stunning 60 frames per second, speeds that Mac users just haven't seen without serious compromises in image quality. In fact, though, 3dfx doesn't believe in those kinds of compromises.

"We support all three Macintosh 3D display technologies [OpenGL, QuickDraw 3D Rave and GLIDE]," says Speece. "No one else supports all three. No one else can handle our kinds of display speeds in any of those three. So coming out of the gate, we offer better speeds and higher resolutions than any Mac display card using any display technology, and we do it in a single product."

Coming out of the gate this strong was no accident, of course, and took considerable planning on the part of 3dfx. While the first clue many of us had about their plans was their announcement earlier this year that they'd be introducing Mac cards, Mac compatibility has been engineered into the silicon of their VSA-100 chip for more than a year. The development team for the Mac product line includes engineers from nearly every major company that's ever worked on Mac graphics hardware.

"The product introductions here at Macworld are a long way from the end of what we want to see happen," says Speece. "We want to see this drive developers to push harder at the limits of Mac gaming technology, which will drive our development team to introduce new technologies for developers to use, and so on. We really see this as the beginning of a different world for Mac gamers and developers."

One of the most exciting technologies I saw is what 3dfx calls Full Scene Antialiasing (FSA), which does exactly what it suggests: it removes the flickering fine lines and random pixels common in high-resolution computer graphics.

Computer artists have known for a long time that the secret to increasing realism for computer graphics is sometimes to increase blur. It seems counterintuitive, but blur is one reason why film images look more "real" to many eyes than video does, even though video can resolve finer details, details that can unfortunately cause visual interference. FSA smoothes out some of those overly sharp details in ways that add not only to the realism of moving scenes, but their enjoyability.

"In aiming for top performance, we used to stress frame rate. That made sense a few years ago when 20 frames per second was a big deal," Speece points out. "But as we all approach 60 frames per second, our competitors are by and large continuing to just increase frame rate. That really doesn't do anything for frame rate, except to increase the rate of the flicker. It actually makes things look worse because the flickering draws more attention to itself.

"When we first started talking about FSA, everybody ignored us. That became impossible as soon as they saw how amazing it looks," laughs Speece. "But what they did was try to write hacks into the drivers, which runs the risk of incompatibilities. Sure enough, some computers are crashing when they try to run this kind of add-on code, and others are running so much slower that it's not worth using. Ours is the only full-scene antialiasing built into the chips, and," he adds with a smile, "we hold the patent on it."

As a result of all this processing power built into the chip, those 667,000 megapixels running 60 frames per second are sampled four times, and the antialiasing is calculated from the average of each of the samples. Rather than globally tossing out resolution with a heavy-handed blur, the 5500's silicon allows a highly sophisticated algorithm to take advantage of the unprecedented amount of data passing though its system to create an elegant image of unparalleled realism.

Which is just what gamers want when they blow something into smithereens.

The 4500, by the way, only offers two-time sampling, rather than four, but still looks stunning to me.

Using the sales volume of their PC products to provide economies of scale—their Mac offerings use the same VSA-100 chip as the PC line—the introductory prices for these cards are remarkably low: $199 for the 4500 and only $329 for the 5500.

The eagle-eyed will have noticed that the illustration of the Voodoo 5500 card above is a PCI card. The question immediately becomes, "Are these things worth using up one of the Macs precious PCI slots?"

The answer is yes—if you have a slot to spare. This is a non-issue for most gamers, of course, and likely for many graphics professionals, almost of all of whom have at least one slot open. For some video professionals, though, a spare PCI slot is out of the question. While this will cost 3dfx relatively few sales, I think it's a shame that it should cost them any. I hope they reconsider their decision not to bring out a Mac AGP card like they have for the peecee users. That high-end video and graphics professionals be among the handful of those shut out from using these miraculous cards is nothing short of tragic. (Did I say pretty please?)

But for anyone else, both of these cards are miraculous indeed. The Voodoo 5 4500 and 5500 cards are the only products I saw at Macworld that took my breath away as much as Apple's own product announcements. Anyone who has room for one of these should buy one. I really think it's just that simple. And most definitely not just gamers, either. Either is an absolute must for graphic artists, compositors, writers, scientists, indeed anyone who spends much time looking at their computer monitor. The Voodoo 5 4500 and 5500 represent the new standard for Mac display technology.


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