ICOMP (index)

Last updated
Various CPUs marked with iCOMP index's.
FC80486DX4-75 AK SX883 USA 1995 01 WT.jpg
i486 DX4 75 MHz
iCOMP=319
I486DX4.jpg
i486 DX4 100 MHz
iCOMP = 435
Pentium 60 SX948 gold front.jpg
Pentium 60 MHz
iCOMP = 510
Ic-photo-Intel--A80502-100--(Pentium-CPU).png
Pentium 100 MHz
iComp = 815
Ic-photo-Intel--A80502-120--(Pentium-CPU).JPG
Pentium 120 MHz
iCOMP = 1000
Pentium 120MHz Top (50006792812).jpg
Pentium 120 MHz
iCOMP 2 = 100
Ibm tp310 cpu-sy028 (cropped) P133 SY028.jpg
Pentium 133 MHz
iCOMP 2 = 111
Pentium 150 and Socket 7 Motherboard (1) (cropped) A80502150 SY015.jpg
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. [1] The formula for calculating iCOMPs is like this:

CategoryBenchmarkWeight
16-bit IntegerZDbenchCPU52%
16-bit Floating-Point16-bit Whetstone2%
ZDbenchCPU1%
16-bit GraphicsZDbenchCPU*10%
16-bit VideoZDbenchCPU*5%
32-bit Integer SPECint9215%
32-bit Floating-Point SPECfp925%
32-bit GraphicsSPECint92*5%
32-bit VideoSPECint92*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. [1]

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. [2] For Version 3.0 (1999) it was Pentium II at 350 MHz. [3]

Intel iCOMP (Full List) [4]
CPU NameClock (MHz)iCOMP 3.0iCOMP 2.0iCOMP 1.0
Pentium III 10003280
9333100
8662890
8002690
7502540
7002420
6502270
Pentium III E 6002110
Pentium III 6001930
5501780
5001650
4501500
Pentium II 4501240483
4001130440
Celeron 4001011394
Pentium II OverDrive 3331001387
Pentium II 3501000386
333940366
Pentium II OverDrive 300351
Celeron 366890344
Pentium II 300332
Celeron 333318
Pentium II 266303
Celeron A 300296
Pentium II 233267
Celeron 300226
Pentium Pro 256K 200220
Celeron 266213
Pentium MMX 233203
Pentium Pro 256K 180197
Pentium Pro 512K 166186
Pentium MMX 200182
Pentium OverDrive MMX 200 200181
Pentium Pro 256K 150168
Pentium OverDrive MMX 180 180163
Pentium MMX 166160
Pentium OverDrive MMX 166 166157
Pentium MMX 150144
Pentium OverDrive MMX 150 150144
Pentium 200142
1661271308
Pentium OverDrive 1661271308
Pentium OverDrive MMX 150 125120
Pentium 1501141176
Pentium OverDrive 1501141176
Pentium 1331111110
Pentium OverDrive 1251070
Pentium 1201001000
Pentium OverDrive 13384970
12075877
Pentium 10090815
9081735
7567610
Pentium OverDrive 83581
Pentium 6657567 [5]
6051510
Pentium OverDrive 63443
i486 DX4 100435
75319
i486 DX2 66297
i486 DX 50249
i486 DX2 50231
i486 OD-25 50231 [6]
i486 SX2 50180
i486 DX 33166
i486 OD-20 40166 [7]
i486 SX 33136
i486 OD-20 33132 [8]
i486 DX 25122
i486 SX 25100
2078
i386 DX 3368
i486 SX 1663
i386 DX 2549
i386 SL 2541
i386 SX 2539
2032
1622

See also

References

  1. 1 2 Michael Slater (October 7, 1992). "Intel Unveils "iCOMP" Performance Index" (PDF). Microprocessor Report . Vol. 6, no. 13. MicroDesign Resources . Retrieved January 4, 2024.
  2. "iCOMP(R) Index 2.0". faculty.iima.ac.in. Archived from the original on 1996-12-20. Retrieved 2019-12-17.
  3. "Intel(r) Processor Performance Indicators". 1999-02-25. Archived from the original on 1999-02-25. Retrieved 2019-12-17.
  4. "IDEAS Top Performers - Intel iCOMP (Full List)". Ideas International. Archived from the original on January 16, 2006. Retrieved February 10, 2006.
  5. Rant, Jon, "Pentium Processor: Previewing Desktop Computing's Next Step", Intel Corporation, Microcomputer Solutions, March/April 1993, page 1
  6. Chen, 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
  7. Chen, 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
  8. Chen, 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