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AGP4X vs. AGP8X
An anonymous reader writes "With upcoming chipsets such as the SiS648 claiming support for the latest AGP8X standard, we asked ourselves if there were any performance benefits. We took the SiS648 and Xabre 400 reference boards, modified them and compared the results." I can't even get 4x stable under XP, so I figure 8x is
half as likely to let me play NWN :)
2.18 gigabytes a second. Jesus - does anyone else see why this is wierd to me? I mean, I understand the need for faster hardware, but can't software producers just make their software more efficient? I mean, any game I'm playing that requires 2.18gb of data to be passed through my video card each second is going to require a better, faster computer than I've got now. I'm tired of always being forced into upgrading just to play the latest and greatest games - and then being told that I'm breaking the law when I want to play old ones that I can't buy anymore! It's absurd, and it makes perfect sense - too many software companies have a vested interest in hardware - the more advanced the game, the more hardware that sells. What we really need is another Mario Bros. or Tetris to come along to give us all a kick in the face - great games don't need outstanding graphics to be great fun.
Most people will say agp8x is way too much and overkill and will introduce some bugs and firmware/hardware/signal issues with some lower quality cards, etc...
:)
Well, when AGP 1x was out, people didn't find it very useful because it wasn't fast enough
AGP2x was okay to offload the PCI bus and do some basic stuff, but not fast enough for high-speed games and transfering large chunks of information.
AGP4x seems to be okay for today's technology and all, and AGP8X seems to be way overkill, but I personnaly think that it's finally what it should have been since the start: a *VERY* fast graphics port on which the bandwidth bottlenect doesn't become an issue, * at any resolutions * , and that help cutting down the cost in other fields beside gaming. (one example: uncompressed video editing 1600x1200@24bits(or more for film and with newer card with better colorspace) @60FPS) Right now you require exotic hardware for this, especially for uncompressed playback. let's say you'd want to invest on a fast Ultra320 array (ok you'll say if you do so you can afford the exotic hardware as well, but the point here is actually CUTTING down the price, and this is one way), well now you could get way more drives for your system.
There are many more examples for this, but the main idea is there are new features that are going to come out for cards, bigger bitdepth, better this and that, that's going to choke the bandwidth and 256MB on a card won't be enough in a not so distant future, using system memory at almost local memory speed increases quality and possibilities tremendously, and while we don't see much use right now, I'm sure it won't take long after 8x is installed that we'll see a use for 12x or 16x
--- Metamoderating abusive downgraders since my 300th post.
"[...]there's actually quite a bit of advantage with AGP8X especially at lower resolutions."
What are these people smoking? The vast majority of the tests are all but identical. The VERY BEST performance difference is 3DMark2001SE Pro at 800x600x16, and it shows a whopping 4.7% improvement.
Clue: In the current 3D world, AGP4X IS NOT a constraint. Even AGP2X is fine. Hell, there was an early version of the (TNT2 or GeForce 1, I forget which) that was *PCI*, for chrissake, and it was only a whisker slower than the AGP cards at the time.
Geometry transfer, it would appear, just isn't very bandwidth intensive. The only time the AGP rate is going to matter much is when doing very heavy texturing from main memory, but that just isn't happening. Instead, manufacturers are putting more and more RAM on the video card instead, and all the games are oriented around pre-loading all necessary textures in that specialized, super-high-speed RAM.
At the present 1.06 MB/sec transfer rate of AGP 4X, that means that the entire video RAM of a 128MB card be filled in roughly 1/10th of a second. If you spend all the time, money, and effort to upgrade to AGP 8X, you can improve your load time by 1/20th of a second.
Just think...if you played 50 levels of some FPS a day, every day, you'd save over 15 minutes in your first year alone!
Obviously, this is a very important technology we should all rush out to buy. Thanks, hardwarezone.com! I'll trust you for all my technology reviews in future.
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AGP8X: Saving your time so efficiently, you won't even notice.