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Author Topic: Xbox bottleneck problem eliminated?  (Read 3344 times)

Offline Nu
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Xbox bottleneck problem eliminated?
« on: February 19, 2001, 07:36:03 AM »
Thanks to Viper_FuRy of the msxbox.com forums for this information. :)

Quote
Originally posted by Viper_FuRy:
AMD has release a new technology called HyperTransportation, which is system bus that lets chips communicate alot faster. That is 24X Faster than current bus speeds. Nvidia plans to use this technology to boost performance for the X-BOX. "They (NVidia) will be able to use the same south bridge(HyperTransportation)in both Pentium III in Xbox and (AMD\'s) Athlons in PCs."

Man, X-Box is going to have the best of the best, its going to be UNSTOPPABLE. Those polygons are gonna flying. OH yeahh.

here are two links for the story:
http://www.cnn.com/2001/TECH/ptech/02/15/hyper.transport.idg/index.html

http://www.amd.com/news/prodpr/21042.html

Viper

The bandwidth was the biggest limitation for the Xbox, hardware-wise. This is great news for Xbox supporters, and developers.

BTW... Dont flame me for posting positive Xbox info here... I thought it would be ok, since there are a couple of Xbox supporters who visit these forums. I dont want to start some stupid console war debate. :(
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Offline CygnusXI
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Xbox bottleneck problem eliminated?
« Reply #1 on: February 19, 2001, 07:45:18 AM »
What IS the current buss speed?
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Offline Nu
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Xbox bottleneck problem eliminated?
« Reply #2 on: February 19, 2001, 08:07:22 AM »
6.4GB per second. The PS2\'s is like 48GB.

If the Xbox\'s bus speed were to be increased by 24x, wouldn\'t it be about 2 times as fast as PS2\'s?
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Offline CygnusXI
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« Reply #3 on: February 19, 2001, 08:21:20 AM »
I read the article, looks as though it\'s not quite that high.

Quote
Engineers can design the link in each direction and decide the width of the bus and the clock rate of the system in order to deliver the desired bits and bytes needed, Mitchell said. The maximum configuration is 1.6G transfers per second.


..And from the AMD link above, AMD says that WITH this new technology the buss will be 6.4gig.

Quote
HyperTransport technology, formerly code-named Lightning Data Transport (LDT), is an innovative new technology that moves information faster. With a peak data transfer rate of 6.4GB per second possible, HyperTransport technology is designed to enable the chips inside of PCs, networking and communications devices to communicate with each other up to 24 times faster than with existing technologies.


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Offline jaggies
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Xbox bottleneck problem eliminated?
« Reply #4 on: February 19, 2001, 08:24:05 AM »
No it doesn\'t say WITH .Learn to read.


It say that IT IS up to 24 times faster.
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to there are ways to give the illusion of AA,without having to take cuts in performance,and some developers are are taking advantage of themhowever ,until SOny comes up with a specific and easy ways to implement true AA that dosent take major hits on performance,you probably wont be seeing a huge number of games take advantage of it.
Offline jaggies
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« Reply #5 on: February 19, 2001, 08:26:36 AM »
just face it xbox is better.enuff  if it wasn\'t xbox shouldn\'t of been released.But m$ wants to come out fighting.

straight to console debating you go.
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to there are ways to give the illusion of AA,without having to take cuts in performance,and some developers are are taking advantage of themhowever ,until SOny comes up with a specific and easy ways to implement true AA that dosent take major hits on performance,you probably wont be seeing a huge number of games take advantage of it.
Offline ReverendXbox
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« Reply #6 on: February 19, 2001, 08:38:13 AM »
Jags, I think that\'s already been established.  We all know that Xbox will be three times more powerful than the PS2.  However,  that doesn\'t mean diddly squat if it doesn\'t have the software to back up that impressive number.  Gamestock and TGS are next month and we\'ll see whether or not Xbox will be three times BETTER than the PS2.  Microsoft have gone on record to say that they will own TGS and that the show will belong to the Xbox.  They better not be bull****ting the Reverend.
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Offline jaggies
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« Reply #7 on: February 19, 2001, 08:40:03 AM »
Nowhere does it say this is going into xbox either.

xbox has games,it has online pc games,ps2 games,a square game.
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to there are ways to give the illusion of AA,without having to take cuts in performance,and some developers are are taking advantage of themhowever ,until SOny comes up with a specific and easy ways to implement true AA that dosent take major hits on performance,you probably wont be seeing a huge number of games take advantage of it.
Offline CygnusXI
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« Reply #8 on: February 19, 2001, 08:40:40 AM »
Don\'t tell me to learn how to read jaggies, you snot!

Look, it says clearly that the new technology has a PEAK TRANSFER RATE OF 6.4 GB PER SECOND

What part didn\'t YOU understand??????.

Yeah, reading rainbow dropout, it DOES say UP TO 24X faster......WITH A PEAK OF 6.4GIG!!!!!!!!!!   Duh.
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Offline jaggies
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« Reply #9 on: February 19, 2001, 08:43:17 AM »
peak of 6.4 is still faster than ps2. because ps2 is existing technologies.It probably isnt 24 times. It can be any number up to 24.
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to there are ways to give the illusion of AA,without having to take cuts in performance,and some developers are are taking advantage of themhowever ,until SOny comes up with a specific and easy ways to implement true AA that dosent take major hits on performance,you probably wont be seeing a huge number of games take advantage of it.
Offline jm
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Xbox bottleneck problem eliminated?
« Reply #10 on: February 19, 2001, 08:51:29 AM »
Bandwidth is funny. You can never have just enough. We all thought the first microcomputer will fullfil our expectations throughout the future and look now? We got Pentium IV\'s with high speed RDRAM, DDR RAM, quad pumped 100Mhz bus speeds. We got video cards pushing 2 gigapixels, 40 million triangles per second. How much else can we ask for?

As long as a console can achieve 60fps in a game, your mission is already accomplished. You can only hope to add more features to the visual quality and still keep 60fps locked in a game. Those bragging about you will achieve 500fps in a game are full of crap. Anything about 60fps is just sheer bragging rights, period. Studies show that the human eye can\'t tell the difference above 60fps. So for those saying "System A can push 500fps and System B can only push 70fps!" just save it.


Bandwidth serves as 1 purpouse. Data thruput. It contributes to loading times and video frame rates per second achieving a goal as fast as it can. The debate on whether x-Box will have 6.4GB per second or 20+GB per second only comes into play on how fast a game can run, and load. As I said earlier, once a piece of silicon achieves 60fps, you can only add in visuals and keep 60fps. Then once you got your photo realistic visuals down, you concentrate on loading times. x-Box will have some loading times, maybe 5 seconds? Pends on how big textures and the game is.

jm
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Offline CygnusXI
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« Reply #11 on: February 19, 2001, 08:53:58 AM »
I don\'t quite know what you mean.

Anyway there are pluses and negatives. The PS2 has a 48Gig graphics Memory buss, but a 3.2Gig main buss, so really the GPU to main memory is limited to 3.2Gig.

So...This 6.4Gig buss is technically twice as fast as the PS2\'s main buss, but what effect the 48Gig GPU buss has in advantage I don\'t know.

The XBOX already has a 6.4 buss, so this news seems irrelevant since the stated MAX for the new AMD technology is also 6.4.
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Offline BizioEE

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Xbox bottleneck problem eliminated?
« Reply #12 on: February 19, 2001, 09:05:55 AM »
Compared with existing system interconnects that provide bandwidth up to 266MB/sec, HyperTransport technology\'s bandwidth of 6.4GB/sec represents better than a 20-fold increase in data throughput...Which are the news? :rolleyes:
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Offline politiepet
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Xbox bottleneck problem eliminated?
« Reply #13 on: February 19, 2001, 09:11:39 AM »
nu gundam, even if your intentions were good, you better not post this information in the main forum, cause even if you don\'t want this to become a console debate, it will be.
It\'s not that I mind you posting this, but this forum just isn\'t made for this.
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Offline Unicron!
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« Reply #14 on: February 19, 2001, 09:13:58 AM »
All the tech info regarding the XBOX info sound frighteningly unstopable.
I dont know but if XBOX prooves to be THAT powerfull then competition is over.:(
I dont want to be forced to have only XBOX as an option.

Anyways I wonder whats the 48GB bus bandwidth for if only 3.6GB can be transfered?I dont think Sony put that enormous bandwidth for nothing.Hardware costs for nothing?
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