Type 3 5x86 vs. Type 4 P90 Benchmarks

Content Copyright 2003, Jim Shorney, all rights reserved. Modified by Major Tom.


Comparative Benchmarks between the Type 3 486DX-50 and Type 4 P60 Complexes

This page is my attempt to answer the question of which is faster, a "stock" T4 Pentium 60/66 or a T3 50 MHz complex fitted with an AMD 5x86 clocked at 150 MHz (x3 multiplier).

5x86 - AMD 5x86-133 @ 150 MHz (IBM PS/2 8595, Type 3 complex)
P60 - Pentium 60 (IBM PS/2 8595, Type 4 complex)


Sysbench 0.9.1d Benchmark Results

Operating system: IBM OS/2 Warp 4.0
Test Conditions: test platform was a PS/2 Model 95xp 486 8595-0xF, 48 MB parity RAM, OS/2 timeslice-32,32.
Benchmarks were run on the known stable Type-3 processor complex that had been in service for several months in this box. The T3 was then removed and replaced with a Type-4 Pentium 60 complex, and benchmarks re-run. No changes were made to the operating system or other system hardware.

CPU Integer tests

CPU Cache Dhrystone Hanoi Heapsort Sieve CpuI-marks
5x86 256 K 29.861 8.721 23.694 24.445 23.820
P60 256K 49.604  39.171  27.145  48.708  42.973 

CPU Floating Point tests

CPU Cache LinPack Flops FFT CpuF-marks
5x86 256 K 4.512 7.641 5.516 6.348
P60 256K 4.210 9.308 6.074 7.255

DIVE tests

XGA-2, 1 MB VRAM
CPU Video Bus Bandwidth DIVE fun M->S DD 1.00:1 Dive-marks
5x86 7.430 26.562 25.323 9.554
P60 6.997 24.514 23.849 8.963

Video tests

1024x768x256

XGA-2, 1 MB VRAM
CPU BitBlt S->S Copy BitBlt M->S Copy Filled Rect. Pattern Fill Vert. Lines Horiz. Lines Diag. Lines Text Render PM-marks
5x86 13.815 4.246 13.041 36.546 2.734 4.810 3.476 6.947 10.133
P60 13.855 3.592 13.059 35.946 2.778 4.955 3.534 6.725 9.982

Disk tests

5x86 (T3), IBM SCSI/Cache w/2 MB

Drive Avg. Data Access time Cache/Bus xfer Avg. Transfer Disk use CPU load DiskIO-marks
IBM 0661 
379 MB
35.100 2.950 1.417 11.000 12.164
IBM 0661 
305 MB
36.400 2.955 1.127 9.000 10.611
IBM 62RW100 
817 MB
32.100 2.951 1.299 12.000 11.653

P60 (T4), IBM SCSI/Cache w/2 MB

Drive Avg. Data Access time Cache/Bus xfer Avg. Transfer Disk use CPU load DiskIO-marks
IBM 0661 
379 MB
34.900 2.826 1.503 15.000 12.439
IBM 0661 
305MB
35.900 2.830 1.183 5.000 10.983
IBM 62RW100 
817 MB
32.200 2.825 1.325 6.000 11.845

Memory

5x86 (T3) P60 (T4)
5       kB copy  20.839    MB/s 201.613    MB/s
10     kB copy  20.915    MB/s 102.513    MB/s
20     kB copy  20.905    MB/s 57.969    MB/s
40     kB copy  20.889    MB/s 54.342    MB/s
80     kB copy  20.887    MB/s 53.934    MB/s
160   kB copy  20.480    MB/s 42.553    MB/s
320   kB copy  13.698    MB/s 16.247    MB/s
640   kB copy  10.131    MB/s 10.891    MB/s
1280 kB copy  10.101    MB/s 10.878    MB/s
5       kB read 135.141    MB/s 73.366    MB/s
10     kB read 127.885    MB/s 63.951    MB/s
20     kB read 69.618    MB/s 59.476    MB/s
40     kB read 69.623    MB/s 59.217    MB/s
80     kB read 69.254    MB/s 59.260    MB/s
160   kB read 53.862    MB/s 58.331    MB/s
320   kB read 33.396    MB/s 33.221    MB/s
640   kB read 24.125    MB/s 26.372    MB/s
1280 kB read 24.127    MB/s 26.388    MB/s
5       kB write 21.003    MB/s 75.102    MB/s
10     kB write 20.974    MB/s 75.020    MB/s
20     kB write 20.973    MB/s 75.188    MB/s
40     kB write 20.993    MB/s 75.038    MB/s
80     kB write 20.998    MB/s 74.847    MB/s
160   kB write 20.956    MB/s 59.260    MB/s
320   kB write 20.998    MB/s 23.049    MB/s
640   kB write 20.998    MB/s 16.903    MB/s
1280 kB write 20.992    MB/s 16.875    MB/s
Total 28.180 Mem-marks 45.619 Mem-marks


Landmark "Speed" (DOS) Benchmark Results

Disclaimer: In today's world of blinding fast multi-cached CPU's and multi-tasking operating systems, Landmark Speed numbers are virtually useless for quantifying a system's real-world performance. They are presented here only as a relative indicator of CPU core performance when executing multiple timed loops in a single-tasking environment. The operating system used was IBM PC-DOS 2000, loaded in a "pure" configuration with no memory managers or device drivers loaded.

5x86 (T3)

 
Speed v2.0
Speed v6.0
CPU 225.49 MHz 495.96 MHz
FPU 807.69 MHz 580.20 MHz
Video 3963 Chr/mS 3947.95 Chr/mS

P60 (T4)

 
Speed v2.0
Speed v6.0 
CPU 346.5 MHz 625.9 MHz
FPU 1177.37 MHz 1002.70 Mhz
Video 3963 Chr/mS 3963 Chr/mS


Micro2000 "Microscope" v6.5 Benchmark Results

Micro2000 uses their own custom kernel to run the Microscope diagnostic program.  I don't know a whole lot about it, but I present it here as yet another set of numbers to confuse the issue.

5x86 (T3)

  Instructions/Second
MHz
CPU 66225 K 134
NPU 27405 K 148

System Memory 5771.9 KBPS
Text Mode 145.0 KBPS
CGA 106.1 KBPS
EGA 220.0 KBPS

P60 (T4)

  Instructions/Second
MHz
CPU 68015 K 76
NPU 30959 K 60

System Memory 6765 KBPS
Text Mode 189 KBPS
CGA 85 KBPS
EGA 142 KBPS

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Louis Ohland, Peter Wendt, William Walsh, David Beem, Tatsuo Sunagawa, Jim Shorney, Tim Clarke, Kevin Bowling, Tomáš Slavotínek, and many others.

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