clong@topaz.rutgers.edu (Chris Long) (06/15/90)
It finally came, and I've been running various benchmarks. The
following results are with the BIOS loaded into RAM and both caches
turned on; I'll post the results with various combinations of these
three off in a few days, in addition to further benchmarks.
Kevin Murphy's CPU Benchmark Utility (1.10)
4.77 MHz XT 10.00 seconds
25 MHz 486 .22 seconds
Power Index 45.45
I was worried for a few seconds when I noticed that the bar graph
indicated an effective speed of 56.81 MHz, which is only slightly
faster than a 20 MHz 386. However, it turned out that the bar
for the 486 had wrapped around, and that for this test the 486 was
equivalent to an XT running at 216.80 MHz (a difference of 160,
which tells us something about how the program calculates its
results).
--
Microdesigns IBM Compatible Performance Analyzer
2175%, relative to an XT.
--
L. T. Software's Throughput Benchmark (5.01)
11577.5% (apparently relative to an XT).
--
Norton's System Information (1987)
CI = 41.0 (relative to an XT).
This is an outdated version of SI; the newest version should give
a result in the high 90's.
--
PC Magazine Laboratory Benchmarks Series (5.1)
Test Machine: This 80486/25.0
Computed CPU: 80386 25.0 Mhz
Machine "A": IBM Model 70/25 Mhz
Machine "B": 8Mhz IBM PC/AT
TEST MACHINE MACHINE
MACHINE "A" "B"
======= ======= =======
PROCESSOR PERFORMANCE TESTS:
Instruction Mix - 8088 1.58 2.41 9.14
Instruction Mix - 80286 1.48 2.33 9.06
Instruction Mix - 80386 1.46 2.19 N/A
128K NOP Loop 0.44 1.34 4.17
Do-nothing Loop 0.63 1.02 3.64
Integer Add 0.21 0.49 2.14
Integer Multiply 0.24 0.34 1.21
String Sort and Move 0.45 0.73 2.93
Prime Number Sieve 0.12 0.52 3.02
Floating Point Mix 2.37 4.01 17.24
COPROCESSOR PERFORMANCE TESTS:
Coprocessor Type 80387
Math Coprocessor 0.17 0.33 2.47
DISK PERFORMANCE TESTS:
BIOS DISK SEEK
Sequential 3.46 13.22 10.11
Random 16.86 24.52 37.46
DOS DISK ACCESS 18.40 27.61 42.68
DOS FILE ACCESS (SMALL RECORDS)
512 RECORDS/512 BYTES EACH
File Create 8.90 9.03 10.32
Sequential Write 17.08 17.49 9.01
Sequential Read 0.66 8.90 10.27
Random Write 14.45 18.40 12.69
Random Read 6.92 10.44 18.40
------- ------- -------
TOTAL (512/512) 48.01 64.26 60.69
64 RECORDS/4096 BYTES EACH
File Create 1.42 1.72 2.86
Sequential Write 1.38 1.52 2.53
Sequential Read 0.44 1.47 2.74
Random Write 1.20 1.72 3.14
Random Read 1.21 1.65 3.18
------- ------- -------
TOTAL (64/4096) 5.65 8.08 14.45
======= ======= =======
TOTAL (SMALL) 53.66 72.34 75.14
DOS FILE ACCESS (LARGE RECORDS)
16 RECORDS/16384 BYTES EACH
File Create 0.60 0.83 2.09
Sequential Write 0.54 0.71 1.86
Sequential Read 0.44 0.66 1.93
Random Write 0.61 0.75 1.98
Random Read 0.55 0.71 1.98
------- ------- -------
TOTAL (16/16384) 2.74 3.66 9.84
8 RECORDS/32768 BYTES EACH
File Create 0.66 0.79 1.92
Sequential Write 0.50 0.58 1.82
Sequential Read 0.38 0.53 1.81
Random Write 0.49 0.60 1.81
Random Read 0.44 0.55 1.86
------- ------- -------
TOTAL (8/32768) 2.47 3.05 9.22
======= ======= =======
TOTAL (LARGE) 5.21 6.71 19.06
======= ======= =======
TOTAL (SMALL AND LARGE) 58.87 79.05 94.20
VIDEO PERFORMANCE TESTS:
Direct Screen Access 2.69 6.53 9.12
Teletype Without Scrolling 1.10 0.66 7.25
Teletype With Scrolling 2.20 3.40 11.20
MEMORY PERFORMANCE TESTS:
Conventional Read 0.22 0.33 1.43
Conventional Write 0.22 0.33 1.43
Expanded Read 0.55 N/A 2.41
Expanded Write 0.49 N/A 2.42
Extended Read NOT RUN 1.81 11.97
Extended Write NOT RUN 1.53 11.92
-Chris