SQRTSS (XMM, M32)

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

• Arrow Lake-P
• Arrow Lake-E
• Meteor Lake-P
• Meteor Lake-E
• Emerald Rapids
• 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 5
• AMD Zen 4
• AMD Zen 3
• AMD Zen 2
• AMD Zen+

Arrow Lake-P

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤10
  • Latency operand 2 → 1 (address, base register): ≤18
  • Latency operand 2 → 1 (address, index register): ≤18
• Throughput
  • Computed from the port usage: 0.50
  • Measured (loop): 3.53
  • Measured (unrolled): 3.52
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*LD+1*V01

Arrow Lake-E

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤11
  • Latency operand 2 → 1 (address, base register): ≤20
  • Latency operand 2 → 1 (address, index register): ≤20
• Throughput
  • Measured (loop): 3.00
  • Measured (unrolled): 3.00
• Number of μops
  • Executed: 1
  • Microcode Sequencer (MS): 0

Meteor Lake-P

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤12
  • Latency operand 2 → 1 (address, base register): ≤19
  • Latency operand 2 → 1 (address, index register): ≤19
• Throughput
  • Computed from the port usage: 1.00
  • Measured (loop): 3.00
  • Measured (unrolled): 3.00
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p0+1*p23A

Meteor Lake-E

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤11
  • Latency operand 2 → 1 (address, base register): ≤20
  • Latency operand 2 → 1 (address, index register): ≤20
• Throughput
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 1
  • Microcode Sequencer (MS): 0

Emerald Rapids

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤12
  • Latency operand 2 → 1 (address, base register): ≤19
  • Latency operand 2 → 1 (address, index register): ≤19
• Throughput
  • Computed from the port usage: 1.00
  • Measured (loop): 3.00
  • Measured (unrolled): 3.00
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p0+1*p23A

Alder Lake-P

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤12
  • Latency operand 2 → 1 (address, base register): ≤19
  • Latency operand 2 → 1 (address, index register): ≤19
• Throughput
  • Computed from the port usage: 1.00
  • Measured (loop): 3.00
  • Measured (unrolled): 3.00
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p0+1*p23A

Alder Lake-E

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤11
  • Latency operand 2 → 1 (address, base register): ≤20
  • Latency operand 2 → 1 (address, index register): ≤20
• Throughput
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 1
  • Microcode Sequencer (MS): 0

Rocket Lake

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤12
  • Latency operand 2 → 1 (address, base register): ≤19
  • Latency operand 2 → 1 (address, index register): ≤19
• Throughput
  • Computed from the port usage: 1.00
  • Measured (loop): 3.00
  • Measured (unrolled): 3.00
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p0+1*p23

Tiger Lake

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤12
  • Latency operand 2 → 1 (address, base register): ≤19
  • Latency operand 2 → 1 (address, index register): ≤19
• Throughput
  • Computed from the port usage: 1.00
  • Measured (loop): 3.00
  • Measured (unrolled): 3.00
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p0+1*p23

Ice Lake

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤12
  • Latency operand 2 → 1 (address, base register): ≤19
  • Latency operand 2 → 1 (address, index register): ≤19
• Throughput
  • Computed from the port usage: 1.00
  • Measured (loop): 3.00
  • Measured (unrolled): 3.00
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p0+1*p23

Cascade Lake

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤12
  • Latency operand 2 → 1 (address, base register): ≤19
  • Latency operand 2 → 1 (address, index register): ≤19
• Throughput
  • Computed from the port usage: 1.00
  • Measured (loop): 3.00
  • Measured (unrolled): 3.00
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p0+1*p23

Cannon Lake

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤12
  • Latency operand 2 → 1 (address, base register): ≤19
  • Latency operand 2 → 1 (address, index register): ≤19
• Throughput
  • Computed from the port usage: 1.00
  • Measured (loop): 3.00
  • Measured (unrolled): 3.00
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p0+1*p23

Skylake-X

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤12
  • Latency operand 2 → 1 (address, base register): ≤19
  • Latency operand 2 → 1 (address, index register): ≤19
• Throughput
  • Computed from the port usage: 1.00
  • Measured (loop): 3.00
  • Measured (unrolled): 3.00
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p0+1*p23
• IACA 2.3
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 3.00
• Number of μops: 2
• Port usage: 1*p0+1*p23
• IACA 3.0
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 2.96
• Number of μops: 2
• Port usage: 1*p0+1*p23

Coffee Lake

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤12
  • Latency operand 2 → 1 (address, base register): ≤19
  • Latency operand 2 → 1 (address, index register): ≤19
• Throughput
  • Computed from the port usage: 1.00
  • Measured (loop): 3.00
  • Measured (unrolled): 3.00
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p0+1*p23

Kaby Lake

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤12
  • Latency operand 2 → 1 (address, base register): ≤19
  • Latency operand 2 → 1 (address, index register): ≤19
• Throughput
  • Computed from the port usage: 1.00
  • Measured (loop): 3.00
  • Measured (unrolled): 3.00
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p0+1*p23

Skylake

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤12
  • Latency operand 2 → 1 (address, base register): ≤19
  • Latency operand 2 → 1 (address, index register): ≤19
• Throughput
  • Computed from the port usage: 1.00
  • Measured (loop): 3.00
  • Measured (unrolled): 3.00
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p0+1*p23
• IACA 2.3
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 3.00
• Number of μops: 2
• Port usage: 1*p0+1*p23
• IACA 3.0
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 2.95
• Number of μops: 2
• Port usage: 1*p0+1*p23

Broadwell

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤10
  • Latency operand 2 → 1 (address, base register): ≤16
  • Latency operand 2 → 1 (address, index register): ≤16
• Throughput
  • Computed from the port usage: 1.00
  • Measured (loop): 4.00
  • Measured (unrolled): 4.00
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p0+1*p23
• IACA 2.2
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 7.00 (with the -no_interiteration flag: 7.00)
• Number of μops: 2
• Port usage: 1*p0+1*p23
• IACA 2.3
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 7.00
• Number of μops: 2
• Port usage: 1*p0+1*p23
• IACA 3.0
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 7.00
• Number of μops: 2
• Port usage: 1*p0+1*p23

Haswell

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤10
  • Latency operand 2 → 1 (address, base register): ≤16
  • Latency operand 2 → 1 (address, index register): ≤16
• Throughput
  • Computed from the port usage: 1.00
  • Measured (loop): 7.00
  • Measured (unrolled): 7.00
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p0+1*p23
• IACA 2.1
• Latency: 19
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 7.00 (with the -no_interiteration flag: 7.00)
• Number of μops: 2
• Port usage: 1*p0+1*p23
• IACA 2.2
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 7.00 (with the -no_interiteration flag: 7.00)
• Number of μops: 2
• Port usage: 1*p0+1*p23
• IACA 2.3
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 7.00
• Number of μops: 2
• Port usage: 1*p0+1*p23
• IACA 3.0
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 7.00
• Number of μops: 2
• Port usage: 1*p0+1*p23

Ivy Bridge

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤10
  • Latency operand 2 → 1 (address, base register): ≤16
  • Latency operand 2 → 1 (address, index register): ≤16
• Throughput
  • Computed from the port usage: 1.00
  • Measured (loop): 7.00
  • Measured (unrolled): 7.00
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p0+1*p23
• IACA 2.1
• Latency: 19
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 7.00 (with the -no_interiteration flag: 7.00)
• Number of μops: 2
• Port usage: 1*p0+1*p23
• IACA 2.2
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 7.00 (with the -no_interiteration flag: 7.00)
• Number of μops: 2
• Port usage: 1*p0+1*p23
• IACA 2.3
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 7.00
• Number of μops: 2
• Port usage: 1*p0+1*p23

Sandy Bridge

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤10
  • Latency operand 2 → 1 (address, base register): ≤16
  • Latency operand 2 → 1 (address, index register): ≤16
• Throughput
  • Computed from the port usage: 1.00
  • Measured (loop): 10.00
  • Measured (unrolled): 10.00
• Number of μops
  • Executed: 2
  • Retire slots: 1
  • Decoded (MITE): 1
  • Microcode Sequencer (MS): 0
• Port usage: 1*p0+1*p23
• IACA 2.1
• Latency: 20
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 14.00 (with the -no_interiteration flag: 14.00)
• Number of μops: 2
• Port usage: 1*p0+1*p23
• IACA 2.2
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 14.00 (with the -no_interiteration flag: 14.00)
• Number of μops: 2
• Port usage: 1*p0+1*p23
• IACA 2.3
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 14.00
• Number of μops: 2
• Port usage: 1*p0+1*p23

Westmere

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤7
  • Latency operand 2 → 1 (address, base register): ≤15
  • Latency operand 2 → 1 (address, index register): ≤15
• Throughput
  • Computed from the port usage: 1.00
  • Measured (loop): 7.00
  • Measured (unrolled): 7.00
• Number of μops
  • Executed: 2
  • Retire slots: 2
  • Microcode Sequencer (MS): 0
  • Requires the complex decoder
• Port usage: 1*p0+1*p2
• IACA 2.1
• Latency: 24
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 18.00 (with the -no_interiteration flag: 18.00)
• Number of μops: 2
• Port usage: 1*p0+1*p2
• IACA 2.2
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 18.00 (with the -no_interiteration flag: 18.00)
• Number of μops: 2
• Port usage: 1*p0+1*p2

Nehalem

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤7
  • Latency operand 2 → 1 (address, base register): ≤15
  • Latency operand 2 → 1 (address, index register): ≤15
• Throughput
  • Computed from the port usage: 1.00
  • Measured (loop): 7.00
  • Measured (unrolled): 7.00
• Number of μops
  • Executed: 2
  • Retire slots: 2
  • Microcode Sequencer (MS): 0
  • Requires the complex decoder
• Port usage: 1*p0+1*p2
• IACA 2.1
• Latency: 24
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 18.00 (with the -no_interiteration flag: 18.00)
• Number of μops: 2
• Port usage: 1*p0+1*p2
• IACA 2.2
• Throughput
  • Computed from the port usage: 1.00
  • IACA: 18.00 (with the -no_interiteration flag: 18.00)
• Number of μops: 2
• Port usage: 1*p0+1*p2

Wolfdale

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤6
  • Latency operand 2 → 1 (address, base register): ≤11
  • Latency operand 2 → 1 (address, index register): ≤11
• Throughput
  • Computed from the port usage: 1.00
  • Measured (loop): 5.00
  • Measured (unrolled): 5.00
• Number of μops
  • Executed: 2
• Port usage: 1*p0+1*p2

Conroe

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤6
  • Latency operand 2 → 1 (address, base register): ≤11
  • Latency operand 2 → 1 (address, index register): ≤11
• Throughput
  • Computed from the port usage: 1.00
  • Measured (loop): 5.00
  • Measured (unrolled): 5.00
• Number of μops
  • Executed: 2
• Port usage: 1*p0+1*p2

Tremont

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤11
  • Latency operand 2 → 1 (address, base register): ≤19
  • Latency operand 2 → 1 (address, index register): ≤19
• Throughput
  • Measured (loop): 6.00
  • Measured (unrolled): 6.00
• Number of μops
  • Executed: 1
  • Microcode Sequencer (MS): 0

Goldmont Plus

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤12
  • Latency operand 2 → 1 (address, base register): ≤19
  • Latency operand 2 → 1 (address, index register): ≤19
• Throughput
  • Measured (loop): 8.00
  • Measured (unrolled): 8.00
• Number of μops
  • Executed: 1
  • Microcode Sequencer (MS): 0

Goldmont

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤20
  • Latency operand 2 → 1 (address, base register): ≤27
  • Latency operand 2 → 1 (address, index register): ≤27
• Throughput
  • Measured (loop): 19.00
  • Measured (unrolled): 19.00
• Number of μops
  • Executed: 1
  • Microcode Sequencer (MS): 0

Airmont

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤20
  • Latency operand 2 → 1 (address, base register): ≤27
  • Latency operand 2 → 1 (address, index register): ≤27
• Throughput
  • Measured (loop): 18.00
  • Measured (unrolled): 18.00
• Number of μops
  • Executed: 1
  • Microcode Sequencer (MS): 0

Bonnell

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤32
  • Latency operand 2 → 1 (address, base register): ≤37
  • Latency operand 2 → 1 (address, index register): ≤37
• Throughput
  • Measured (loop): 32.02
  • Measured (unrolled): 32.00
• Number of μops
  • Executed: 4
  • Microcode Sequencer (MS): 4
  • Requires the complex decoder

AMD Zen 5

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤14
  • Latency operand 2 → 1 (address, base register): ≤22
  • Latency operand 2 → 1 (address, index register): ≤22
• Throughput
  • Computed from the port usage: 0.50
  • Measured (loop): 4.50
  • Measured (unrolled): 4.50
• Number of μops
  • Executed: 1
• Port usage: 1*FP01
• Documentation
• Latency: 14
• Throughput: 4.50
• Number of μops: 1
• Port usage: FP1

AMD Zen 4

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤15
  • Latency operand 2 → 1 (address, base register): ≤23
  • Latency operand 2 → 1 (address, index register): ≤23
• Throughput
  • Computed from the port usage: 0.50
  • Measured (loop): 5.00
  • Measured (unrolled): 5.00
• Number of μops
  • Executed: 1
• Port usage: 1*FP01

AMD Zen 3

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤14
  • Latency operand 2 → 1 (address, base register): ≤23
  • Latency operand 2 → 1 (address, index register): ≤23
• Throughput
  • Computed from the port usage: 0.50
  • Measured (loop): 5.00
  • Measured (unrolled): 5.00
• Number of μops
  • Executed: 1
• Port usage: 1*FP01

AMD Zen 2

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤14
  • Latency operand 2 → 1 (address, base register): ≤22
  • Latency operand 2 → 1 (address, index register): ≤22
• Throughput
  • Computed from the port usage: 1.00
  • Measured (loop): 5.50
  • Measured (unrolled): 5.50
• Number of μops
  • Executed: 1
• Port usage: 1*FP3

AMD Zen+

• Measurements
• Latencies
  • Latency operand 1 → 1: ≤8
  • Latency operand 2 → 1 (address, base register): ≤16
  • Latency operand 2 → 1 (address, index register): ≤16
• Throughput
  • Computed from the port usage: 1.00
  • Measured (loop): 4.00
  • Measured (unrolled): 4.00
• Number of μops
  • Executed: 1
• Port usage: 1*FP3