CPUID

Operands

• Operand 1 (r/w, suppressed): Register (EAX)
• Operand 2 (w, suppressed): Register (EBX)
• Operand 3 (r/w, suppressed): Register (ECX)
• Operand 4 (w, suppressed): Register (EDX)

Available performance data

• Alder Lake-P
• Alder Lake-E
• Rocket Lake
• Tiger Lake
• Ice Lake
• Cascade Lake
• Cannon Lake
• Skylake-X
• Coffee Lake
• Kaby Lake
• Skylake
• Broadwell
• Haswell
• Ivy Bridge
• Sandy Bridge
• Westmere
• Nehalem
• Wolfdale
• Conroe
• Tremont
• Goldmont Plus
• Goldmont
• Airmont
• Bonnell
• AMD Zen 4
• AMD Zen 3
• AMD Zen 2
• AMD Zen+

Alder Lake-P

• Measurements
• Throughput
  • Computed from the port usage: 7.00
  • Measured (loop): 124.78
  • Measured (unrolled): 123.12
• Number of μops
  • Executed: 25
  • Retire slots: 23
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 32
• Port usage: 2*p0+10*p06+7*p1+1*p49+5*p5+1*p78

Alder Lake-E

• Measurements
• Throughput
  • Measured (loop): 346.40
  • Measured (unrolled): 344.07
• Number of μops
  • Executed: 161
  • Microcode Sequencer (MS): 161

Rocket Lake

• Measurements
• Throughput
  • Computed from the port usage: 7.50
  • Measured (loop): 108.27
  • Measured (unrolled): 104.75
• Number of μops
  • Executed: 23
  • Retire slots: 22
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 30
• Port usage: 3*p0+12*p06+3*p1+1*p49+4*p5+1*p78

Tiger Lake

• Measurements
• Throughput
  • Computed from the port usage: 7.50
  • Measured (loop): 108.50
  • Measured (unrolled): 105.78
• Number of μops
  • Executed: 24
  • Retire slots: 23
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 31
• Port usage: 3*p0+12*p06+5*p1+1*p49+4*p5+1*p78

Ice Lake

• Measurements
• Throughput
  • Computed from the port usage: 8.00
  • Measured (loop): 107.73
  • Measured (unrolled): 104.77
• Number of μops
  • Executed: 23
  • Retire slots: 22
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 30
• Port usage: 4*p0+1*p01+1*p05+12*p06+3*p1+1*p49+4*p5+1*p78

Cascade Lake

• Measurements
• Throughput
  • Computed from the port usage: 11.50
  • Measured (loop): 104.55
  • Measured (unrolled): 100.75
• Number of μops
  • Executed: 38
  • Retire slots: 35
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 42
• Port usage: 7*p0+16*p06+6*p1+1*p4+9*p5

Cannon Lake

• Measurements
• Throughput
  • Computed from the port usage: 9.50
  • Measured (loop): 105.25
  • Measured (unrolled): 101.14
• Number of μops
  • Executed: 33
  • Retire slots: 31
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 56
• Port usage: 5*p0+1*p01+1*p05+14*p06+4*p1+1*p4+7*p5

Skylake-X

• Measurements
• Throughput
  • Computed from the port usage: 10.50
  • Measured (loop): 99.94
  • Measured (unrolled): 99.88
• Number of μops
  • Executed: 35
  • Retire slots: 32
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 39
• Port usage: 6*p0+15*p06+5*p1+1*p4+8*p5
• IACA 2.3
• Throughput
  • Computed from the port usage: 2.00
  • IACA: 17.24
• Number of μops: 8
• Port usage: 5*p0156+2*p06+1*p5
• IACA 3.0
• Throughput
  • Computed from the port usage: 2.00
  • IACA: 17.14
• Number of μops: 8
• Port usage: 5*p0156+2*p06+1*p5

Coffee Lake

• Measurements
• Throughput
  • Computed from the port usage: 12.00
  • Measured (loop): 104.48
  • Measured (unrolled): 100.72
• Number of μops
  • Executed: 38
  • Retire slots: 33
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 58
• Port usage: 6*p0+18*p06+5*p1+1*p4+9*p5

Kaby Lake

• Measurements
• Throughput
  • Computed from the port usage: 12.00
  • Measured (loop): 104.52
  • Measured (unrolled): 100.58
• Number of μops
  • Executed: 38
  • Retire slots: 33
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 58
• Port usage: 6*p0+18*p06+5*p1+1*p4+9*p5

Skylake

• Measurements
• Throughput
  • Computed from the port usage: 12.00
  • Measured (loop): 104.50
  • Measured (unrolled): 100.72
• Number of μops
  • Executed: 38
  • Retire slots: 33
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 58
• Port usage: 6*p0+18*p06+5*p1+1*p4+9*p5
• IACA 2.3
• Throughput
  • Computed from the port usage: 2.00
  • IACA: 17.24
• Number of μops: 8
• Port usage: 5*p0156+2*p06+1*p5
• IACA 3.0
• Throughput
  • Computed from the port usage: 2.00
  • IACA: 17.14
• Number of μops: 8
• Port usage: 5*p0156+2*p06+1*p5

Broadwell

• Measurements
• Throughput
  • Computed from the port usage: 11.50
  • Measured (loop): 99.20
  • Measured (unrolled): 99.17
• Number of μops
  • Executed: 41
  • Retire slots: 37
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 45
• Port usage: 6*p0+17*p06+7*p1+1*p4+10*p5
• IACA 2.2
• Throughput
  • Computed from the port usage: 2.00
  • IACA: 18.00 (with the -no_interiteration flag: 11.43)
• Number of μops: 8
• Port usage: 5*p0156+2*p06+1*p5
• IACA 2.3
• Throughput
  • Computed from the port usage: 2.00
  • IACA: 17.24
• Number of μops: 8
• Port usage: 5*p0156+2*p06+1*p5
• IACA 3.0
• Throughput
  • Computed from the port usage: 2.00
  • IACA: 17.10
• Number of μops: 8
• Port usage: 5*p0156+2*p06+1*p5

Haswell

• Measurements
• Throughput
  • Computed from the port usage: 11.00
  • Measured (loop): 99.43
  • Measured (unrolled): 99.46
• Number of μops
  • Executed: 37
  • Retire slots: 33
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 41
• Port usage: 7*p0+15*p06+5*p1+1*p4+10*p5
• IACA 2.2
• Throughput
  • Computed from the port usage: 2.00
  • IACA: 18.00 (with the -no_interiteration flag: 10.57)
• Number of μops: 8
• Port usage: 5*p0156+2*p06+1*p5
• IACA 2.3
• Throughput
  • Computed from the port usage: 2.00
  • IACA: 17.24
• Number of μops: 8
• Port usage: 5*p0156+2*p06+1*p5
• IACA 3.0
• Throughput
  • Computed from the port usage: 2.00
  • IACA: 17.14
• Number of μops: 8
• Port usage: 5*p0156+2*p06+1*p5

Ivy Bridge

• Measurements
• Throughput
  • Computed from the port usage: 22.00
  • Measured (loop): 105.25
  • Measured (unrolled): 101.03
• Number of μops
  • Executed: 40
  • Retire slots: 36
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 43
• Port usage: 10*p0+8*p1+1*p4+22*p5

Sandy Bridge

• Measurements
• Throughput
  • Computed from the port usage: 18.00
  • Measured (loop): 96.05
  • Measured (unrolled): 96.02
• Number of μops
  • Executed: 30
  • Retire slots: 29
  • Decoded (MITE): 0
  • Microcode Sequencer (MS): 36
• Port usage: 9*p0+6*p1+1*p4+18*p5

Westmere

• Measurements
• Throughput
  • Computed from the port usage: 10.00
  • Measured (loop): 82.75
  • Measured (unrolled): 82.77
• Number of μops
  • Executed: 26
  • Retire slots: 25
  • Microcode Sequencer (MS): 77
• Port usage: 6*p0+1*p015+7*p1+1*p3+1*p4+10*p5

Nehalem

• Measurements
• Throughput
  • Computed from the port usage: 11.00
  • Measured (loop): 84.75
  • Measured (unrolled): 84.75
• Number of μops
  • Executed: 25
  • Retire slots: 24
  • Microcode Sequencer (MS): 77
• Port usage: 6*p0+1*p05+5*p1+1*p3+1*p4+11*p5

Wolfdale

• Measurements
• Throughput
  • Computed from the port usage: 53.00
  • Measured (loop): 195.80
  • Measured (unrolled): 194.50
• Number of μops
  • Executed: 83
• Port usage: 19*p0+17*p1+2*p3+2*p4+53*p5

Conroe

• Measurements
• Throughput
  • Computed from the port usage: 60.00
  • Measured (loop): 178.90
  • Measured (unrolled): 177.50
• Number of μops
  • Executed: 76
• Port usage: 12*p0+19*p1+2*p3+2*p4+60*p5

Tremont

• Measurements
• Throughput
  • Measured (loop): 133.37
  • Measured (unrolled): 129.50
• Number of μops
  • Executed: 114
  • Microcode Sequencer (MS): 114

Goldmont Plus

• Measurements
• Throughput
  • Measured (loop): 76.03
  • Measured (unrolled): 75.88
• Number of μops
  • Executed: 60
  • Microcode Sequencer (MS): 60

Goldmont

• Measurements
• Throughput
  • Measured (loop): 53.86
  • Measured (unrolled): 53.83
• Number of μops
  • Executed: 32
  • Microcode Sequencer (MS): 32

Airmont

• Measurements
• Throughput
  • Measured (loop): 53.02
  • Measured (unrolled): 53.00
• Number of μops
  • Executed: 32
  • Microcode Sequencer (MS): 32

Bonnell

• Measurements
• Throughput
  • Measured (loop): 103.40
  • Measured (unrolled): 101.00
• Number of μops
  • Executed: 32
  • Microcode Sequencer (MS): 71

AMD Zen 4

• Measurements
• Throughput
  • Measured (loop): 146.70
  • Measured (unrolled): 145.60
• Number of μops
  • Executed: 88

AMD Zen 3

• Measurements
• Throughput
  • Measured (loop): 129.60
  • Measured (unrolled): 128.47
• Number of μops
  • Executed: 82
• Documentation
• Number of μops: ucode

AMD Zen 2

• Measurements
• Throughput
  • Measured (loop): 126.60
  • Measured (unrolled): 125.50
• Number of μops
  • Executed: 77
• Documentation
• Number of μops: ucode

AMD Zen+

• Measurements
• Throughput
  • Measured (loop): 122.70
  • Measured (unrolled): 121.50
• Number of μops
  • Executed: 68
• Documentation
• Latency: 125
• Throughput: 125.00
• Number of μops: ucode