PCMPEQB (XMM, M128)

Operands

• Operand 1 (r/w): Register (XMM0, XMM1, XMM2, XMM3, XMM4, XMM5, XMM6, XMM7, XMM8, XMM9, XMM10, XMM11, XMM12, XMM13, XMM14, XMM15)
• Operand 2 (r): Memory

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
• Latencies
  • Latency operand 1 → 1: 1
  • Latency operand 2 → 1 (address, base register): ≤8
  • Latency operand 2 → 1 (address, index register): ≤8
  • Latency operand 2 → 1 (memory): ≤5
• Throughput
  • Computed from the port usage: 0.50
  • Measured (loop): 0.50
  • Measured (unrolled): 0.50
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p01+1*p23A

Alder Lake-E

• Measurements
• Latencies
  • Latency operand 1 → 1: 1
  • Latency operand 2 → 1 (address, base register): ≤11
  • Latency operand 2 → 1 (address, index register): ≤11
  • Latency operand 2 → 1 (memory): ≤8
• Throughput
  • Measured (loop): 0.50
  • Measured (unrolled): 0.50
• Number of μops
  • Executed: 1
  • Microcode Sequencer (MS): 0

Rocket Lake

• Measurements
• Latencies
  • Latency operand 1 → 1: 1
  • Latency operand 2 → 1 (address, base register): ≤8
  • Latency operand 2 → 1 (address, index register): ≤8
  • Latency operand 2 → 1 (memory): ≤5
• Throughput
  • Computed from the port usage: 0.50
  • Measured (loop): 0.50
  • Measured (unrolled): 0.50
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p01+1*p23

Tiger Lake

• Measurements
• Latencies
  • Latency operand 1 → 1: 1
  • Latency operand 2 → 1 (address, base register): ≤8
  • Latency operand 2 → 1 (address, index register): ≤8
  • Latency operand 2 → 1 (memory): ≤5
• Throughput
  • Computed from the port usage: 0.50
  • Measured (loop): 0.50
  • Measured (unrolled): 0.50
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p01+1*p23

Ice Lake

• Measurements
• Latencies
  • Latency operand 1 → 1: 1
  • Latency operand 2 → 1 (address, base register): ≤8
  • Latency operand 2 → 1 (address, index register): ≤8
  • Latency operand 2 → 1 (memory): ≤5
• Throughput
  • Computed from the port usage: 0.50
  • Measured (loop): 0.50
  • Measured (unrolled): 0.50
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p01+1*p23

Cascade Lake

• Measurements
• Latencies
  • Latency operand 1 → 1: 1
  • Latency operand 2 → 1 (address, base register): ≤8
  • Latency operand 2 → 1 (address, index register): ≤8
  • Latency operand 2 → 1 (memory): ≤5
• Throughput
  • Computed from the port usage: 0.50
  • Measured (loop): 0.50
  • Measured (unrolled): 0.50
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p01+1*p23

Cannon Lake

• Measurements
• Latencies
  • Latency operand 1 → 1: 1
  • Latency operand 2 → 1 (address, base register): ≤8
  • Latency operand 2 → 1 (address, index register): ≤8
  • Latency operand 2 → 1 (memory): ≤5
• Throughput
  • Computed from the port usage: 0.50
  • Measured (loop): 0.50
  • Measured (unrolled): 0.50
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p01+1*p23

Skylake-X

• Measurements
• Latencies
  • Latency operand 1 → 1: 1
  • Latency operand 2 → 1 (address, base register): ≤8
  • Latency operand 2 → 1 (address, index register): ≤8
  • Latency operand 2 → 1 (memory): ≤5
• Throughput
  • Computed from the port usage: 0.50
  • Measured (loop): 0.50
  • Measured (unrolled): 0.50
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p01+1*p23
• IACA 2.3
• Throughput
  • Computed from the port usage: 0.50
  • IACA: 0.50
• Number of μops: 2
• Port usage: 1*p01+1*p23
• IACA 3.0
• Throughput
  • Computed from the port usage: 0.50
  • IACA: 0.50
• Number of μops: 2
• Port usage: 1*p01+1*p23

Coffee Lake

• Measurements
• Latencies
  • Latency operand 1 → 1: 1
  • Latency operand 2 → 1 (address, base register): ≤8
  • Latency operand 2 → 1 (address, index register): ≤8
  • Latency operand 2 → 1 (memory): ≤5
• Throughput
  • Computed from the port usage: 0.50
  • Measured (loop): 0.50
  • Measured (unrolled): 0.50
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p01+1*p23

Kaby Lake

• Measurements
• Latencies
  • Latency operand 1 → 1: 1
  • Latency operand 2 → 1 (address, base register): ≤8
  • Latency operand 2 → 1 (address, index register): ≤8
  • Latency operand 2 → 1 (memory): ≤5
• Throughput
  • Computed from the port usage: 0.50
  • Measured (loop): 0.50
  • Measured (unrolled): 0.50
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p01+1*p23

Skylake

• Measurements
• Latencies
  • Latency operand 1 → 1: 1
  • Latency operand 2 → 1 (address, base register): ≤8
  • Latency operand 2 → 1 (address, index register): ≤8
  • Latency operand 2 → 1 (memory): ≤5
• Throughput
  • Computed from the port usage: 0.50
  • Measured (loop): 0.50
  • Measured (unrolled): 0.50
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p01+1*p23
• IACA 2.3
• Throughput
  • Computed from the port usage: 0.50
  • IACA: 0.50
• Number of μops: 2
• Port usage: 1*p01+1*p23
• IACA 3.0
• Throughput
  • Computed from the port usage: 0.50
  • IACA: 0.50
• Number of μops: 2
• Port usage: 1*p01+1*p23

Broadwell

• Measurements
• Latencies
  • Latency operand 1 → 1: 1
  • Latency operand 2 → 1 (address, base register): ≤7
  • Latency operand 2 → 1 (address, index register): ≤7
  • Latency operand 2 → 1 (memory): ≤6
• Throughput
  • Computed from the port usage: 0.50
  • Measured (loop): 0.50
  • Measured (unrolled): 0.50
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p15+1*p23
• IACA 2.2
• Throughput
  • Computed from the port usage: 0.50
  • IACA: 0.50 (with the -no_interiteration flag: 0.50)
• Number of μops: 2
• Port usage: 1*p15+1*p23
• IACA 2.3
• Throughput
  • Computed from the port usage: 0.50
  • IACA: 0.50
• Number of μops: 2
• Port usage: 1*p15+1*p23
• IACA 3.0
• Throughput
  • Computed from the port usage: 0.50
  • IACA: 0.50
• Number of μops: 2
• Port usage: 1*p15+1*p23

Haswell

• Measurements
• Latencies
  • Latency operand 1 → 1: 1
  • Latency operand 2 → 1 (address, base register): ≤7
  • Latency operand 2 → 1 (address, index register): ≤7
  • Latency operand 2 → 1 (memory): ≤6
• Throughput
  • Computed from the port usage: 0.50
  • Measured (loop): 0.50
  • Measured (unrolled): 0.50
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p15+1*p23
• IACA 2.1
• Latency: 7
• Throughput
  • Computed from the port usage: 0.50
  • IACA: 0.50 (with the -no_interiteration flag: 0.50)
• Number of μops: 2
• Port usage: 1*p15+1*p23
• IACA 2.2
• Throughput
  • Computed from the port usage: 0.50
  • IACA: 0.50 (with the -no_interiteration flag: 0.50)
• Number of μops: 2
• Port usage: 1*p15+1*p23
• IACA 2.3
• Throughput
  • Computed from the port usage: 0.50
  • IACA: 0.50
• Number of μops: 2
• Port usage: 1*p15+1*p23
• IACA 3.0
• Throughput
  • Computed from the port usage: 0.50
  • IACA: 0.50
• Number of μops: 2
• Port usage: 1*p15+1*p23

Ivy Bridge

• Measurements
• Latencies
  • Latency operand 1 → 1: 1
  • Latency operand 2 → 1 (address, base register): ≤7
  • Latency operand 2 → 1 (address, index register): ≤7
  • Latency operand 2 → 1 (memory): ≤6
• Throughput
  • Computed from the port usage: 0.50
  • Measured (loop): 0.50
  • Measured (unrolled): 0.50
• Number of μops
  • Executed: 2
  • Retire slots: 1 (if an indexed addressing mode is used: 2)
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p15+1*p23
• IACA 2.1
• Latency: 7
• Throughput
  • Computed from the port usage: 0.50
  • IACA: 0.50 (with the -no_interiteration flag: 0.50)
• Number of μops: 2
• Port usage: 1*p15+1*p23
• IACA 2.2
• Throughput
  • Computed from the port usage: 0.50
  • IACA: 0.50 (with the -no_interiteration flag: 0.50)
• Number of μops: 2
• Port usage: 1*p15+1*p23
• IACA 2.3
• Throughput
  • Computed from the port usage: 0.50
  • IACA: 0.50
• Number of μops: 2
• Port usage: 1*p15+1*p23

Sandy Bridge

• Measurements
• Latencies
  • Latency operand 1 → 1: 1
  • Latency operand 2 → 1 (address, base register): ≤7
  • Latency operand 2 → 1 (address, index register): ≤7
  • Latency operand 2 → 1 (memory): ≤6
• Throughput
  • Computed from the port usage: 0.50
  • Measured (loop): 0.50
  • Measured (unrolled): 0.50
• Number of μops
  • Executed: 2
  • Retire slots: 1 (if an indexed addressing mode is used: 2)
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p15+1*p23
• IACA 2.1
• Latency: 7
• Throughput
  • Computed from the port usage: 0.50
  • IACA: 0.50 (with the -no_interiteration flag: 0.50)
• Number of μops: 2
• Port usage: 1*p15+1*p23
• IACA 2.2
• Throughput
  • Computed from the port usage: 0.50
  • IACA: 0.50 (with the -no_interiteration flag: 0.50)
• Number of μops: 2
• Port usage: 1*p15+1*p23
• IACA 2.3
• Throughput
  • Computed from the port usage: 0.50
  • IACA: 0.50
• Number of μops: 2
• Port usage: 1*p15+1*p23

Westmere

• Measurements
• Latencies
  • Latency operand 1 → 1: 2
  • Latency operand 2 → 1 (address, base register): ≤7
  • Latency operand 2 → 1 (address, index register): ≤7
  • Latency operand 2 → 1 (memory): ≤6
• Throughput
  • Computed from the port usage: 1.00
  • Measured (loop): 1.00
  • Measured (unrolled): 1.00
• Number of μops
  • Executed: 2
  • Retire slots: 1 (if an indexed addressing mode is used: 2)
  • Microcode Sequencer (MS): 0
• Port usage: 1*p05+1*p2
• IACA 2.1
• Latency: 7
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 1.00 (with the -no_interiteration flag: 1.00)
• Number of μops: 2
• Port usage: 1*p05+1*p2
• IACA 2.2
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 1.00 (with the -no_interiteration flag: 1.00)
• Number of μops: 2
• Port usage: 1*p05+1*p2

Nehalem

• Measurements
• Latencies
  • Latency operand 1 → 1: 2
  • Latency operand 2 → 1 (address, base register): ≤7
  • Latency operand 2 → 1 (address, index register): ≤7
  • Latency operand 2 → 1 (memory): ≤6
• Throughput
  • Computed from the port usage: 1.00
  • Measured (loop): 1.00
  • Measured (unrolled): 1.00
• Number of μops
  • Executed: 2
  • Retire slots: 1 (if an indexed addressing mode is used: 2)
  • Microcode Sequencer (MS): 0
• Port usage: 1*p05+1*p2
• IACA 2.1
• Latency: 7
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 1.00 (with the -no_interiteration flag: 1.00)
• Number of μops: 2
• Port usage: 1*p05+1*p2
• IACA 2.2
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 1.00 (with the -no_interiteration flag: 1.00)
• Number of μops: 2
• Port usage: 1*p05+1*p2

Wolfdale

• Measurements
• Latencies
  • Latency operand 1 → 1: 1
  • Latency operand 2 → 1 (address, base register): ≤5
  • Latency operand 2 → 1 (address, index register): ≤5
  • Latency operand 2 → 1 (memory): ≤14
• Throughput
  • Computed from the port usage: 1.00
  • Measured (loop): 1.00
  • Measured (unrolled): 1.00
• Number of μops
  • Executed: 2
• Port usage: 1*p05+1*p2

Conroe

• Measurements
• Latencies
  • Latency operand 1 → 1: 1
  • Latency operand 2 → 1 (address, base register): ≤5
  • Latency operand 2 → 1 (address, index register): ≤5
  • Latency operand 2 → 1 (memory): ≤14
• Throughput
  • Computed from the port usage: 1.00
  • Measured (loop): 1.00
  • Measured (unrolled): 1.00
• Number of μops
  • Executed: 2
• Port usage: 1*p05+1*p2

Tremont

• Measurements
• Latencies
  • Latency operand 1 → 1: 1
  • Latency operand 2 → 1 (address, base register): ≤10
  • Latency operand 2 → 1 (address, index register): ≤10
  • Latency operand 2 → 1 (memory): ≤6
• Throughput
  • Measured (loop): 0.50
  • Measured (unrolled): 0.50
• Number of μops
  • Executed: 1
  • Microcode Sequencer (MS): 0

Goldmont Plus

• Measurements
• Latencies
  • Latency operand 1 → 1: 1
  • Latency operand 2 → 1 (address, base register): ≤9
  • Latency operand 2 → 1 (address, index register): ≤9
  • Latency operand 2 → 1 (memory): ≤6
• Throughput
  • Measured (loop): 1.00
  • Measured (unrolled): 1.00
• Number of μops
  • Executed: 1
  • Microcode Sequencer (MS): 0

Goldmont

• Measurements
• Latencies
  • Latency operand 1 → 1: 1
  • Latency operand 2 → 1 (address, base register): ≤8
  • Latency operand 2 → 1 (address, index register): ≤8
  • Latency operand 2 → 1 (memory): ≤6
• Throughput
  • Measured (loop): 1.00
  • Measured (unrolled): 1.00
• Number of μops
  • Executed: 1
  • Microcode Sequencer (MS): 0

Airmont

• Measurements
• Latencies
  • Latency operand 1 → 1: 1
  • Latency operand 2 → 1 (address, base register): ≤8
  • Latency operand 2 → 1 (address, index register): ≤8
  • Latency operand 2 → 1 (memory): ≤5
• Throughput
  • Measured (loop): 1.00
  • Measured (unrolled): 1.00
• Number of μops
  • Executed: 1
  • Microcode Sequencer (MS): 0

Bonnell

• Measurements
• Latencies
  • Latency operand 1 → 1: 1
  • Latency operand 2 → 1 (address, base register): ≤6
  • Latency operand 2 → 1 (address, index register): ≤6
  • Latency operand 2 → 1 (memory): ≤9
• Throughput
  • Measured (loop): 1.00
  • Measured (unrolled): 1.00
• Number of μops
  • Executed: 1
  • Microcode Sequencer (MS): 0

AMD Zen 4

• Measurements
• Latencies
  • Latency operand 1 → 1: 1
  • Latency operand 2 → 1 (address, base register): ≤9
  • Latency operand 2 → 1 (address, index register): ≤9
  • Latency operand 2 → 1 (memory): ≤9
• Throughput
  • Computed from the port usage: 0.25
  • Measured (loop): 0.50
  • Measured (unrolled): 0.50
• Number of μops
  • Executed: 1
• Port usage: 1*FP0123

AMD Zen 3

• Measurements
• Latencies
  • Latency operand 1 → 1: 1
  • Latency operand 2 → 1 (address, base register): ≤9
  • Latency operand 2 → 1 (address, index register): ≤9
  • Latency operand 2 → 1 (memory): ≤9
• Throughput
  • Computed from the port usage: 0.25
  • Measured (loop): 0.50
  • Measured (unrolled): 0.50
• Number of μops
  • Executed: 1
• Port usage: 1*FP0123

AMD Zen 2

• Measurements
• Latencies
  • Latency operand 1 → 1: 1
  • Latency operand 2 → 1 (address, base register): ≤9
  • Latency operand 2 → 1 (address, index register): ≤9
  • Latency operand 2 → 1 (memory): ≤8
• Throughput
  • Computed from the port usage: 0.33
  • Measured (loop): 0.50
  • Measured (unrolled): 0.50
• Number of μops
  • Executed: 1
• Port usage: 1*FP013

AMD Zen+

• Measurements
• Latencies
  • Latency operand 1 → 1: 1
  • Latency operand 2 → 1 (address, base register): ≤9
  • Latency operand 2 → 1 (address, index register): ≤9
  • Latency operand 2 → 1 (memory): ≤8
• Throughput
  • Computed from the port usage: 0.33
  • Measured (loop): 0.50
  • Measured (unrolled): 0.50
• Number of μops
  • Executed: 1
• Port usage: 1*FP013