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how does NASCAR SVGA do on a DX50?

11 posts by 9 people · 06 Jul 1995 - 21 Jul 1995

Brian Wo 06 Jul 1995#303140
I have a chance to pick up a 486DX-50 system which runs its VESA bus at 50 MHz. The implication is that graphics will go much faster than on typical systems which have 25Mhz or 33Mhz busses. Does anyone have such a system and has tried it with NASCAR SVGA? I know I'm not especially impressed with my P90 when it's running in SVGA, but I also know its internal bus is running at 33MHz. Note: This is not a DX2-50, a DX - this would either be an old system released before DX2's came out or a new one specially purchased for this kind of thing. -- Brian Wong Product Marketing Engineering
Tom Piccia 06 Jul 1995#303141
Quoted text (13 lines)>I have a chance to pick up a 486DX-50 system which runs its VESA bus >at 50 MHz. The implication is that graphics will go much faster than >on typical systems which have 25Mhz or 33Mhz busses. Does anyone >have such a system and has tried it with NASCAR SVGA? I know I'm not >especially impressed with my P90 when it's running in SVGA, but I also >know its internal bus is running at 33MHz. >Note: This is not a DX2-50, a DX - this would either be an >old system released before DX2's came out or a new one specially >purchased for this kind of thing. >-- >Brian Wong Product Marketing Engineering
Correct me if I'm wrong (and I very well may be...) the fastest DX clock speeds for 486's without clock doubling was 40 mhz, correct? Someone could be doing the typo thing. I heard second hand on Genie's boards that Papyrus says SVGA with everything on won't run at acceptable rates until the P-6's are out. You say you can't get good performance from a P-90???? Only P90's that don't work well are Packard Bell from what I've heard. Regardless, I'd upgrade video card first and add some cache ram. Much cheaper than an new, or older system and will perform better. Of course if it's initials are P. B. I'd look for another computer anyway. But that's another story altogether and belongs in another topic. Tom P.
m.. 07 Jul 1995#303171
... >Correct me if I'm wrong (and I very well may be...) the fastest DX >clock speeds for 486's without clock doubling was 40 mhz, correct? >Someone could be doing the typo thing. There are a lot of DX50's out there. My father has one. They became too expensive to make since the DX2-66 was just as fast. And the DX2-66 has got a motherboard speed of 33MHz while the DX50 has got to run at 50 MHz. This means a putting higher pressure on the parts and graphics card of the computer making it expensive... Some cards (local bus) just don't work at 50 MHz. /Michael
Brian Wo 07 Jul 1995#303172
Quoted text (13 lines)>>I have a chance to pick up a 486DX-50 system which runs its VESA bus >>at 50 MHz. The implication is that graphics will go much faster than >>on typical systems which have 25Mhz or 33Mhz busses. Does anyone >>have such a system and has tried it with NASCAR SVGA? I know I'm not >>especially impressed with my P90 when it's running in SVGA, but I also >>know its internal bus is running at 33MHz. >>Note: This is not a DX2-50, a DX - this would either be an >>old system released before DX2's came out or a new one specially >>purchased for this kind of thing. >Correct me if I'm wrong (and I very well may be...) the fastest DX >clock speeds for 486's without clock doubling was 40 mhz, correct?
I'm dead sure it's 50 MHz. (I follow what other companies do for a living ;-) 50 MHz DX was the last DX chip before DX2s and DX4s came out. I can believe that, since my expectation without looking at a code profile is that it takes BOTH graphics and cpu horsepower. I forgot to mention that I can have this one for maybe $700 all inclusive, so it's a pretty good deal - I need more computers anyway. Right. I have a Zeos P90. It doesn't give BAD performance, but I also wouldn't race it in SVGA either. Racing has to be smooth and this isn't when it looks nice. -- Brian Wong Product Marketing Engineering
nightsh.. 08 Jul 1995#303189
Brian: Proof positive of the *** between Intel and Papyrus to make us all go broke... :) BTW, what's with the "furious" address? -----------------//------------------------------------------------ | )/-\(_)|__ // "Hi, we're the new Generation X spokesweasels." | nightshade // -- Keith Olbermann on ESPN Sportscenter --------------//---------------------------------------------------
Phil Thomps 09 Jul 1995#303206
> I have a chance to pick up a 486DX-50 system which runs its VESA bus > at 50 MHz. The implication is that graphics will go much faster than > on typical systems which have 25Mhz or 33Mhz busses. Does anyone > have such a system and has tried it with NASCAR SVGA? I know I'm not > especially impressed with my P90 when it's running in SVGA, but I also > know its internal bus is running at 33MHz. According to PC Magazine if you have an Intel Pentium 90 then your memory-bus speed is 60 Mhz and your expansion bus speed is 30 Mhz. -- _____ / O \ POWERPHIL [o=====o] Get there Phast!
Quoted text (13 lines)> I have a chance to pick up a 486DX-50 system which runs its VESA bus > at 50 MHz. The implication is that graphics will go much faster than > on typical systems which have 25Mhz or 33Mhz busses. Does anyone > have such a system and has tried it with NASCAR SVGA? I know I'm not > especially impressed with my P90 when it's running in SVGA, but I also > know its internal bus is running at 33MHz. > Note: This is not a DX2-50, a DX - this would either be an > old system released before DX2's came out or a new one specially > purchased for this kind of thing. > -- > Brian Wong Product Marketing Engineering
-- Forget it. My P100 Triton struggles. ------------------------------------------------------- *Demon Internet: Speed ratings Slow, Dead Slow & Stop!* -------------------------------------------------------
Your wrong. :) No, they do have 486DX50's... Non clock doubled...
Quoted text (10 lines)>>>I have a chance to pick up a 486DX-50 system which runs its VESA bus >>>at 50 MHz. The implication is that graphics will go much faster than >>>on typical systems which have 25Mhz or 33Mhz busses. Does anyone >>>have such a system and has tried it with NASCAR SVGA? I know I'm not >>>especially impressed with my P90 when it's running in SVGA, but I also >>>know its internal bus is running at 33MHz. >>>Note: This is not a DX2-50, a DX - this would either be an >>>old system released before DX2's came out or a new one specially >>>purchased for this kind of thing.
I wish you the best of luck, but I can state with little fear of being wrong that: 1) Your external cache will probably not work at all 2) If you don't have 60ns DRAM, you'll need a ton of wait states 3) Make sure your CPU has an alarm on the cooling fan 4) Good luck finding a video card too... Here's my story: Video (actually, local bus) needed 1WS, thus the bus was (probably close to) running about the same as 33MHz anyway. CPU eventually caught on fire, even with cooling fan working. See if you can find a DX4/100, it's worth it not only for the speed BUT the ease of getting every bit of hardware working with it. E-mail me if you have any questions.......
: >>>I have a chance to pick up a 486DX-50 system which runs its VESA bus : >>>at 50 MHz. The implication is that graphics will go much faster than : >>>on typical systems which have 25Mhz or 33Mhz busses. Does anyone : >>>have such a system and has tried it with NASCAR SVGA? I know I'm not : >>>especially impressed with my P90 when it's running in SVGA, but I also : >>>know its internal bus is running at 33MHz. : >>> : >>>Note: This is not a DX2-50, a DX - this would either be an : >>>old system released before DX2's came out or a new one specially : >>>purchased for this kind of thing. : I wish you the best of luck, but I can state with little fear of being : wrong that: : 1) Your external cache will probably not work at all Cache works fine on my DX50. : 2) If you don't have 60ns DRAM, you'll need a ton of wait states 70ns chips are quite happy. : 3) Make sure your CPU has an alarm on the cooling fan Mine has been running fine for three years now. : 4) Good luck finding a video card too... My ATI is quite happy. Having said all this though, I don't think you'll have the power to run NASCAR properly. Remember, clock speed isn't the only factor. Pentiums can do more in each clock cycle than a 486 can. Killer graphics aren't just a lot of bus transfers - they also eat processor time, it's still the CPU that determines what to display and where to display it. A DX50 will outperform a DX2-50, but don't buy it expecting today's NASCAR and tomorrow's sims to run properly. Brian --

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