CompuServe Thread

CPU Test Pentium vs. All

10 messages in this thread
#98526From: Robert R. TaylorApr 24, 1994 5:14 PM
To all who are interested, We did some more exact CPU tests with 3DStudio 3… these tests were performed with more accuracy than earlier tests. The guy who makes all of our systems uses ASUS Motherboards (you may not know the name, but they are extremely high quality and blindingly fast.. they've beaten Micronics in all tests. Any good clone maker should be familiar with ASUS). Here were the contenders: System #1 – Gateway 486/DX2 66 Vesa Local Bus 32 MB Ram (70ns) 2 Western Digital Cavier 384MB Hard Drives IDE (We just moved these 2 drives between each of the systems being tested to ensure good comparisons) 256k Cache Very simple configurations with EMM386.SYS and a mouse! System #2 – Omni-Digital (Our Engineer's Clone) 486/DX4 100 16 MB Ram (70ns) 2 Western Digital Cavier 384MB Hard Drives IDE (We just moved these 2 drives between each of the systems being tested to ensure good comparisons) 256k Cache System #3 – Omni-Digital Pentium P/60 PCI 16 MB Ram (70ns) 2 Western Digital Cavier 384MB Hard Drives IDE 256k Cache System #4 – Omni-Digital Pentium P/66 PCI 16 MB Ram (70ns) 2 Western Digital Cavier 384MB Hard Drives IDE 256k Cache The Test: We loaded BIRDSHOW.3DS (you should have this in your MESHES Directory) We turned off DISPLAY and used NONE as graphics display. We left all other settings alone. Shadows on, Anti-A on, Forced two-sided off, metal shading mode, mapping on, filter maps on, motion blur on (of no consequence here), auto-reflect on, etc. We then rendered at 640×480 TGA compressed to disk with NO display!! Here are the results: System #1 01:43 System #2 01:08 System #3 01:00 System #4 00:54 If you have any questions, give me a ring at 404-355-1662 or leave me EMAIL. Hope this helps you guys trying to get the most inexpensive systems while remaining fast enough. Remember ALL systems by ALL manufacturers will differ. I think that you will find that these are some of the fastest times (minus the Gateway <g>) for the respective systems, on the market. If you are looking for a good non-no-name clone.. my recommendation would be to go with the new ZEOS Pantera (sp?) P-66. Just don't expect a lot of service! I'll let you guys know about the P-90 when my engineer gets them (be careful of buying these from anyone right now!!! I heard (BUT I DON'T KNOW… JUST HEARD!!!! <g>) that the FCC isn't too happy with these melting demons yet. But they'll be here soon enough…and we'll grab one as soon as they're available and de-bugged. Talk to you guys later.
#98606From: Nik Grant [adesk]Apr 25, 1994 9:09 AM
Robert, Thanks very much for this great info. Much appreciated! Nik
#98981From: DONALD NEWLANDSApr 28, 1994 2:34 AM
Robert, We are testing a 90 Mhz Pentium against a fast 486-66 and found it to be almost exactly three times faster. Your results suggest that we might not have the optimum configuration if you are getting 3X on a 60 Mhz Pentium… Donald
#99045From: Robert R. TaylorApr 28, 1994 12:37 PM
Hey Don, We put a Gateway (not to fast) 66DX2 up against the fastest cpu maker I know… that may account for the 3X. I'll see if I can get some benchmark numbers. Unfortunately they don't usually mean all that much! Give me a ring @ 404-355-1662 -RT
#99151From: DONALD NEWLANDSApr 28, 1994 10:26 PM
Robert, Actually, the 486 that I compared it to is a really sweet DX2 system, while the Pentium demo system has a lot of junky components on it…
#99337From: Robert R. TaylorApr 29, 1994 9:06 PM
Don, That would probably explain it! I'll bet that 90 kicks ass! I can't wait to add one to my farm! Is it getting real hot? -RT
#99722From: EDA LtdMay 3, 1994 1:16 PM
PENTIUM P90 I'm just doing some benchtests with AutoCAD R12 C2 for DOS on a Pentium P90 PC and getting some interesting results – it proved no faster at running AutoCAD than a Pentium 60MHz! The basic config included: 16 MB RAM, Diamond Viper (using a fast asynchronusVL bus), 256Kb cache, AMIBIOS, SoftEngine (V2). Special attention was given to the BIOS settings i.e write back enabled and the config files were optimised to run AutoCAD for DOS. The test was run on an identically configured P60 which tested at 53 seconds. The best we could get the P90 to do was 51.9 seconds? I then tried a Diamond Stealth card with Panacea's DLD and got similar results………. All those Winbench etc things told us that it was really fast at running Windows etc but when it came down to running a real application like AutoCAD there seemed to be a log jam somewhere in the system. Next I tried 3D Studio: The P60 was literally twice as fast as the 486 66 but the same Pentium P90 could only give a 20% improvment on the P60. There are only a few explainations that I can think of: 1) The log jam is now on the video bus – today's processors are fast but the graphics cards are now holding back AutoCAD. There was a time when PC processors were not that hot so graphics guys decided to off-load some of the processing workload onto another chip…usually on the graphics card….maybe this has changed and the CPU is now so fast that the processor on the graphics chip is a liability. I have yet to try out a 64 bit card but the AutoCAD drivers for these are still a bit ropey..I'll have to wait untill Softengine is up and running for the Matrox. 2) It's early days and P90 motherboards are not that good – this could be in the BIOS, general PCB architecture or chipsets…… The company who's machine I tested know their stuff and have produced some of the fastest 486s I have seen. So it came as a surpprise to both them and myself as to the poor P90 performance……. If this is what a good PC manufacturer can come up with what the hell are the bad ones going to produce? On my first encounter I would have to say WAIT until things settle down. Has anyone else out there looked at any other P90 machines? I would be interested in any feedback on Pentiums with AutoCAD. I'm going to be looking at a VIP Pentium board later this week – that's a motherboard which has PCI, VL local bus and ISA slots with the latest OPTI chipset. This may provide the P90 with its missing power. Who knows! Martyn Day, Editor, CADdesk Magazine, London.
#99747From: John TissavaryMay 3, 1994 3:32 PM
Have you checked out the Micron P90's (they're not shipping yet, but you're a magazine…)? Also, you may want to try running AutoCad with a REAL graphics card, not a Diamond or other consumer thingy. Have you tried the Matrox MGA PRO or MG 3D Ultra, or Rasterex Tracer? These cards are CAD accelerators. I think your Diamond is the weak link (boy is that an understatement!) in the Acad test you did. John Tissavary (LUNA cie)
#100064From: EDA LtdMay 5, 1994 5:17 AM
John, Sorry but I will have to disagree with you completely on the graphics card front. I see alot of graphics cards and have an Impression. The Matrox AutoCAD drivers are really slow, even if the the 64 bit chip is fast the drivers let it down. I have done side by side benchtests and both the Artist WinSprint and Matrox Vesa Local Bus cards get hammered by the Diamond Viper running Softengine. The Matrox and Artist cards only come into their own in 3D. So if you are a 2D AutoCAD users the Viper (or any P9000 or 9100 card is the fastest choice. Don't believe the marketing rubbish. When I tested the Matrox I rang them and told them that the MGA VESA was slower than the P9000 ISA, which they did not understand. I had loads of phone calls from them, four sets of drivers etc. In the end they agreeed that the display list driver was the week link. Just because the Viper is low-cost does not mean its low-performance. Martyn Day, Editor, CADdesk Magazine.
#100181From: John TissavaryMay 5, 1994 5:50 PM
I'm not a huge Acad user, and then it's all 3D, but I have heard the Matrox drivers are a bit slower than other high-end cards' (didn't think about Vibrant's Softengine…) Have you tested the Rasterex Tracer? It's supposed to be blisteringly fast, according to someone that's got it and the MGA, plus a few other cards. John Tissavary (LUNA cie)