Whats faster, 486DX4 100MHZ OR Pentium 75...?

[Philippine Mango]

Please post, thanks.

 

[classy]

LOL, I can't even remember the actual specs. You are really going back in time. The pentium 75 should be faster. The pentium became the platform for the cpu as we know it today. The pentium pro is considered the grandfather of the modern cpu.

 

[George Powell]

It is dependent on the application but overall it wll be the Pentium.

The P60 and P66 that preceded the P75 were however not quicker than the DX4 chip.

 

[Philippine Mango]

Originally posted by: George Powell
It is dependent on the application but overall it wll be the Pentium.

The P60 and P66 that preceded the P75 were however not quicker than the DX4 chip.

Any reason why? There were what I'd call significant performance improvements in the original pentium, right?

 

[George Powell]

The DX4 just used clockspeed to acheive its performance, and although the Pentium was a better processor its ALU couldn't quite keep up when it had a 1/3 clockspeed disadvantage.

What the Pentium brought about was a massively improved FPU over the 486DX series.

 

[Amaroque]

The DX4 used a 25MHz bus (4*25). The P75 used a 50MHz bus (IIRC 1.5*50). The 586 core was also about twice as fast as the 486DX core at the same clock speed.

Even a 586 60MHz (IIRC 1*60) would smoke a 486DX4 4*25 MHz in most apps.

Edit: Plus, Georges comment is correct about the FPU. Again IIRC, the 586 FPU core was basically two 486 FPU cores together.

 

[Zap]

The DX4 used a 3x33MHz bus, not 4x25. The AMD 486-133 was considered a 5x86-P75 equivalent by AMD. Photos of nakid... here.

Back to the OP, the P75 is faster than 486DX4-100.

 

[ChiPCGuy]

Originally posted by: Zap
The DX4 used a 3x33MHz bus, not 4x25. The AMD 486-133 was considered a 5x86-P75 equivalent by AMD. Photos of nakid... here.

Back to the OP, the P75 is faster than 486DX4-100.

QFT. Only the original P60 was on par with the 486DX4-100 and since I had a DX4100 and felt that it was still fast enough, I skipped the early lower clock speed Pentiums until the P100.

 

[Amaroque]

I wasn't 100% sure on my comments, hence the 'IIRC'. It's been sooooo long since I've run a system with either CPU, I'm a bit foggy without looking it up.

 

[Zap]

NP man, there's plenty of things I'm foggy with as well... don't ask.

I started my overclocking and system building back with the 486 systems so that's why I remember.

 

[biostud]

P75

 

[F1shF4t]

Might i ask why u asking which one is quicker?

Also i wonder how many days it would take to encode a dvd on a pentium 75

 

[996GT2]

Originally posted by: Dark Cupcake
Might i ask why u asking which one is quicker?

Also i wonder how many days it would take to encode a dvd on a pentium 75

lol...how many Pentium computers are there with DVD drives? You'd have to install one yourself

 

[evenmore1]

Originally posted by: 996GT2

Originally posted by: Dark Cupcake
Might i ask why u asking which one is quicker?

Also i wonder how many days it would take to encode a dvd on a pentium 75

lol...how many Pentium computers are there with DVD drives? You'd have to install one yourself

would it even work? lol My dad's PI 75 was good at the time. He installed an incredible 5X CD-ROM! wow! and the 15" color CRT he got cost him $700! Talk about a great deal

 

[996GT2]

Lol...we have both a 486DX2 and a Pentium. The 486 has a 1X CD-ROM drive, and the Pentium Computer has a slightly faster one (idk what since it's been a box for like 10 years). If I remember correctly DVD drives were really expensive back then, with DVD writers costing thousands.

 

[Hauk]

Blasting back to my college days!

My first "real" PC was 486DX based. Return to Zork was the game to have, taking up a whopping 66MB of hard drive space, running in a DOS window....

 

[jjanders]

Yeah, my first computer was a 386 25MhZ with 4MB of memory. Windows 3.1.

I remember when my Dad brought home some disks someone at work gave him - Wolfenstein 3-D. Gaming was much simpler then, haha.

Ahhh the good old days.

 

[zephyrprime]

Originally posted by: Philippine Mango

Originally posted by: George Powell
It is dependent on the application but overall it wll be the Pentium.

The P60 and P66 that preceded the P75 were however not quicker than the DX4 chip.

Any reason why? There were what I'd call significant performance improvements in the original pentium, right?

One word: superscalar. The P5 was the first superscalar in the x86 universe.

486 - first pipelined x86
pentium - first superscalar x86
pentium pro - out of order execution, speculative execution

So in a way, x86 processors haven't really advanced a whole lot in terms of big new architechtural features since the Pro.

 

[Zap]

Originally posted by: jjanders
Yeah, my first computer was a 386 25MhZ with 4MB of memory. Windows 3.1.

OMG, that was almost like what my first "real" computer was, a custom built computer from PC Warehouse (used to be a chain like PC Club and had almost 100 stores nationwide, don't know if they still exist because branch store I purchased from closed). It was a 386DX-25 (overclocked to 27MHz, LOL) with 4MB SIMMs and running Windows 3.0.

 

[F1shF4t]

My first pc was a 486DX2 66mhz, with 16mg ram and whoping 400mg hdd, my grandma got it for me for 20 bucks, i got it in the time p3 900mhz or so were the next best thing. Was a good system lol played gb games well

Also what pentium is it?. Cause there were ones released for the older boards with the older bus and those should be slower than the ones for the new socket with the quicker bus speed.

 

[ElFenix]

Originally posted by: classy
LOL, I can't even remember the actual specs. You are really going back in time. The pentium 75 should be faster. The pentium became the platform for the cpu as we know it today. The pentium pro is considered the grandfather of the modern cpu.

the pentium and pentium pro didn't have much in common with each other than the name. totally new core. they have even less in common than the K6 does with the athlon. (the k6 had some features of the pentium pro, such as fusing ops to make the processor more risc-like, but had a lot of pentium-like limitations, including cache on the FSB, comparatively weak FPU performance, etc)

 

[Childs]

No 486SLC2 with math coprocessor owners where??? I can't be the only one.

 

[Zap]

Originally posted by: Childs
No 486SLC2 with math coprocessor owners where??? I can't be the only one.

Never had any of those. IIRC those were basically pumped up pseudo 486 cores (instruction compatible, with smaller L1 cache of perhaps 1k or so) running on a 386SX board and thus limited to 16 bit interface including memory (needed only two 30 pin SIMMs).

 

[Amaroque]

Originally posted by: jjanders
Yeah, my first computer was a 386 25MhZ with 4MB of memory. Windows 3.1.

Ahhh the good old days.

Yep, my first 'PC' was a 386SX 16MHz with 2MB RAM running Win3.0... Mostly DOS though. Win3.0 was ridiculously slow.

First computer was a $4K Apple II :shocked:

 

[Childs]

Originally posted by: Zap

Originally posted by: Childs
No 486SLC2 with math coprocessor owners where??? I can't be the only one.

Never had any of those. IIRC those were basically pumped up pseudo 486 cores (instruction compatible, with smaller L1 cache of perhaps 1k or so) running on a 386SX board and thus limited to 16 bit interface including memory (needed only two 30 pin SIMMs).

Possibly. It was an IBM x86 cpu. It was just as fast as a 468DX, but for an unemployed college student it was perfect. Played Doom great, when the L2 was enabled. Had to buy the coprocessor separately tho. My uncle had the 486BLX3 aka Blue Lightning, running at 75Mhz. That thing was like a super computer!