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iCOMP (index)

{{More citations needed|date=November 2009}}

{{lowercase title|title=iCOMP}}

{{multiple image |perrow=2 |total_width=300

| header = Various CPUs marked with iCOMP index's.

| direction = horizontal

| image1 = FC80486DX4-75 AK SX883 USA 1995 01 WT.jpg

| caption1 = i486 DX4 75 MHz
iCOMP=319

| image2 = I486DX4.jpg

| caption2 = i486 DX4 100 MHz
iCOMP = 435

| image3 = Pentium 60 SX948 gold front.jpg

| caption3 = Pentium 60 MHz
iCOMP = 510

| image4 = Ic-photo-Intel--A80502-100--(Pentium-CPU).png

| caption4 = Pentium 100 MHz
iComp = 815

| image5 = Ic-photo-Intel--A80502-120--(Pentium-CPU).JPG

| caption5 = Pentium 120 MHz
iCOMP = 1000

| image6 = Pentium 120MHz Top (50006792812).jpg

| caption6 = Pentium 120 MHz
iCOMP 2 = 100

| image7 = Ibm tp310 cpu-sy028 (cropped) P133 SY028.jpg

| caption7 = Pentium 133 MHz
iCOMP 2 = 111

| image8 = Pentium 150 and Socket 7 Motherboard (1) (cropped) A80502150 SY015.jpg

| caption8 = Pentium 150 MHz
iCOMP 2 = 114

}}

iCOMP for Intel Comparative Microprocessor Performance was an index published by Intel used to measure the relative performance of its microprocessors.

Intel was motivated to create the iCOMP rating by research which showed that many computer buyers assumed that the clock speed – the “MHz” rating – was indicative of performance, regardless of the processor type. iCOMP ratings based on standard benchmarks.{{cite news |title=Intel Unveils "iCOMP" Performance Index |work=Microprocessor Report |author=Michael Slater |publisher=MicroDesign Resources |volume=6 |number=13 |date=October 7, 1992 |url=https://websrv.cecs.uci.edu/~papers/mpr/MPR/ARTICLES/061302.pdf |access-date=January 4, 2024}} The formula for calculating iCOMPs is like this:

class="wikitable"
CategoryBenchmarkWeight
16-bit IntegerZDbenchCPU{{0}}52%
rowspan="2" | 16-bit Floating-Point16-bit Whetstone{{0|00}}2%
ZDbenchCPU{{0|00}}1%
16-bit GraphicsZDbenchCPU*{{0}}10%
16-bit VideoZDbenchCPU*{{0|00}}5%
32-bit IntegerSPECint92{{0}}15%
32-bit Floating-PointSPECfp92{{0|00}}5%
32-bit GraphicsSPECint92*{{0|00}}5%
32-bit VideoSPECint92*{{0|00}}5%

The largest component is the integer CPU benchmark from Ziff-Davis Labs (ZDbenchCPU), which is derived from the earlier PC Labs benchmarks. Whetstone (as implemened in PowerMeter) is used for 16-bit floating-point, and SPECint92 and SPECfp92 are used for the 32-bit components.

There were three revisions of the iCOMP index. Version 1.0 (1992) was benchmarked against the 486SX 25, while version 2.0 (1996) was benchmarked against the Pentium 120.{{Cite web|url=http://faculty.iima.ac.in/~jajoo/icomp/icomp.htm|title=iCOMP(R) Index 2.0|website=faculty.iima.ac.in|url-status=live|archive-url=https://web.archive.org/web/19961220081455/http://www.intel.com/procs/perf/icomp/|archive-date=1996-12-20|access-date=2019-12-17}} For Version 3.0 (1999) it was Pentium II at 350 MHz.{{Cite web|url=http://www1.intel.com:80/procs/perf/icomp/index.htm|archive-url=https://web.archive.org/web/19990225142313/http://www1.intel.com/procs/perf/icomp/index.htm|url-status=dead|archive-date=1999-02-25|title=Intel(r) Processor Performance Indicators|date=1999-02-25|access-date=2019-12-17}}

class="wikitable" style="text-align:right"

|+Intel iCOMP (Full List){{cite web|url=http://www.ideasinternational.com/benchmark/intel/icomp.html |title=IDEAS Top Performers - Intel iCOMP (Full List) |work=Ideas International |access-date=February 10, 2006 |archive-url=https://web.archive.org/web/20060116062612/http://www.ideasinternational.com/benchmark/intel/icomp.html |archive-date=January 16, 2006 |url-status=dead }}

!CPU Name!!Clock (MHz)!!iCOMP 3.0!!iCOMP 2.0!!iCOMP 1.0

align=left rowspan=7|Pentium III10003280
9333100
8662890
8002690
7502540
7002420
6502270
align=left|Pentium III E6002110
align=left rowspan=4|Pentium III6001930
5501780
5001650
4501500
align=left rowspan=2|Pentium II4501240483
4001130440
align=left|Celeron4001011394
align=left|Pentium II OverDrive3331001387
align=left rowspan=2|Pentium II3501000386
333940366
align=left|Pentium II OverDrive300351
align=left|Celeron366890344
align=left|Pentium II300332
align=left|Celeron333318
align=left|Pentium II266303
align=left|Celeron A300296
align=left|Pentium II233267
align=left|Celeron300226
align=left|Pentium Pro 256K200220
align=left|Celeron266213
align=left|Pentium MMX233203
align=left|Pentium Pro 256K180197
align=left|Pentium Pro 512K166186
align=left|Pentium MMX200182
align=left|Pentium OverDrive MMX 200200181
align=left|Pentium Pro 256K150168
align=left|Pentium OverDrive MMX 180180163
align=left|Pentium MMX166160
align=left|Pentium OverDrive MMX 166166157
align=left|Pentium MMX150144
align=left|Pentium OverDrive MMX 150150144
align=left rowspan=2|Pentium200142
1661271308
align=left|Pentium OverDrive1661271308
align=left|Pentium OverDrive MMX 150125120
align=left|Pentium1501141176
align=left|Pentium OverDrive1501141176
align=left|Pentium1331111110
align=left|Pentium OverDrive1251070
align=left|Pentium1201001000
align=left rowspan=2|Pentium OverDrive13384970
12075877
align=left rowspan=3|Pentium

|100

90815
9081735
7567610
align=left|Pentium OverDrive83581
align=left rowspan=2|Pentium

|66

57567
6051510
align=left|Pentium OverDrive63443
align=left rowspan=2|i486 DX4100435
75319
align=left|i486 DX266297
align=left|i486 DX50249
align=left|i486 DX250231
align=left|i486 OD-2550231Chen, Allan, Editor; Hodson Gerri, Associate Edtior, "Intelperspectives: Intel's Newsletter for MIS Profesionals, Volume 2, Number 1", Intel Corporation, Microcomputer Solutions, January/February 1993. page 11
align=left|i486 SX250180
align=left|i486 DX33166
align=left|i486 OD-2040166Chen, Allan, Editor; Hodson Gerri, Associate Edtior, "Intelperspectives: Intel's Newsletter for MIS Profesionals, Volume 2, Number 1", Intel Corporation, Microcomputer Solutions, January/February 1993. page 11
align=left|i486 SX33136
align=left|i486 OD-2033132Chen, Allan, Editor; Hodson Gerri, Associate Edtior, "Intelperspectives: Intel's Newsletter for MIS Profesionals, Volume 2, Number 1", Intel Corporation, Microcomputer Solutions, January/February 1993. page 11
align=left|i486 DX25122
align=left rowspan=2|i486 SX25100
2078
align=left|i386 DX3368
align=left|i486 SX1663
align=left|i386 DX2549
align=left|i386 SL2541
align=left rowspan=3|i386 SX2539
2032
1622

See also

References

{{Benchmark}}

{{DEFAULTSORT:Icomp}}

Category:Intel

Category:Computer-related introductions in 1992

Category:X86 architecture

Category:Computer performance

Category:Benchmarks (computing)

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