Comparison of ARMv8-A cores

This is a table of 64/32-bit ARMv8-A architecture cores comparing microarchitectures which implement the AArch64 instruction set and mandatory or optional extensions of it. Most chips support 32-bit AArch32 for legacy applications. All chips of this type have a floating-point unit (FPU) that is better than the one in older ARMv7 and NEON (SIMD) chips. Some of these chips have coprocessors also include cores from the older 32-bit architecture (ARMv7). Some of the chips are SoCs and can combine both ARM Cortex-A53 and ARM Cortex-A57, such as the Samsung Exynos 7 Octa.

Table

Company Core Released Revision Decode Pipeline
depth
Out-of-order
execution
Branch
prediction
big.LITTLE role Exec.
ports
SIMD Fab
(in nm)
Simult. MT L0 cache L1 cache
Instr + Data
(in KiB)
L2 cache L3 cache Core
configu-
rations
DMIPS/
MHz
ARM part number (in the main ID register)
Have it Entries
ARM Holdings Cortex-A32 (32-bit)[1] 2017 ARMv8.0-A
(only 32-bit)
2-wide8No 0LITTLE? 28[2] No No 8–64 + 8–640–1 MiBNo1-4+ 0xD01
Cortex-A34 (64-bit)[3] 2019 ARMv8.0-A
(only 64-bit)
2-wide 8No 0 LITTLE ? No No 8–64 + 8–64 0–1 MiB No 1-4+ 0xD02
Cortex-A35[4] 2017 ARMv8.0-A2-wide[5]8No 0YesLITTLE? 28 / 16 /
14 / 10
No No8–64 + 8–640 / 128 KiB–1 MiBNo1–4+1.78 0xD04
Cortex-A53[6] 2014 ARMv8.0-A2-wide8No 0Conditional+
Indirect branch
prediction
big/LITTLE2 28 / 20 /
16 / 14 / 10
No No8–64 + 8–64128 KiB–2 MiBNo1–4+2.24 0xD03
Cortex-A55[7] 2017 ARMv8.2-A2-wide8No 0big/LITTLE2 28 / 20 /
16 / 14 / 12 / 10 / 5[8]
No No16–64 + 16–640–256 KiB/core0–4 MiB1–8+2.65[9] 0xD05
Cortex-A57[10] 2013 ARMv8.0-A3-wide15 Yes
3-wide dispatch
Two-levelbig8 28 / 20 /
16[11] / 14
No No48 + 320.5–2 MiBNo1–4+4.6 0xD07
Cortex-A65[12] 2019 ARMv8.2-A??Yes Two-level?2 ? No No????? 0xD06
Cortex-A65AE[13] 2019 ARMv8.2-A??Yes Two-level?2 ? SMT2 No16-64 + 16-6464-256 KiB0-4 MB1–8? 0xD43
Cortex-A72[14] 2015 ARMv8.0-A3-wide15 Yes
5-wide dispatch
Two-levelbig8 28 / 16 No No48 + 320.5–4 MiBNo1–4+4.72 0xD08
Cortex-A73[15] 2016 ARMv8.0-A2-wide11–12 Yes
4-wide dispatch
Two-levelbig7 28 / 16 / 10 No No64 + 32/641–8 MiBNo1–4+~6.35 0xD09
Cortex-A75[7] 2017 ARMv8.2-A3-wide11–13 Yes
6-wide dispatch
Two-levelbig8? 28 / 16 / 10 No No64 + 64256–512 KiB/core0–4 MiB1–8+ 8.2-9.5[16] 0xD0A
Cortex-A76[17] 2018 ARMv8.2-A4-wide11–13Yes
8-wide dispatch
128Two-levelbig8 10 / 7 No No64 + 64256–512 KiB/core1–4 MiB1–4 10.7-12.4[18] 0xD0B
Cortex-A76AE[19] 2018 ARMv8.2-A??Yes 128Two-levelbig? ? SMT2 No????? 0xD0E
Cortex-A77[20] 2019 ARMv8.2-A 4-wide 11–13 Yes
10-wide dispatch
160Two-levelbig 12 2*128b 7 No 1.5K entries 64 + 64 256–512 KiB/core 1–4 MiB 1-4 ? 0xD0D
Cortex-A78[21][22] 2020 ARMv8.2-A 4-wide Yes 160 Yes big 13 2*128b No 1.5K entries 32/64 + 32/64 256–512 KiB/core 1–4 MiB 1-4 ? 0xD41
Cortex-X1[23] 2020 ARMv8.2-A 5-wide[23] ? Yes 224 Yes big 15 4*128b No 3K entries 64 + 64 up to 1 MiB[23] up to 8 MiB[23] custom[23] ? 0xD44
Apple Inc. Cyclone[24] 2013 ARMv8.0-A6-wide[25]16[25]Yes[25] 192 YesNo9[25] 28[26] No No64 + 64[25]1 MiB[25]4 MiB[25]2[27]?
Typhoon 2014 ARMv8.0‑A6-wide[28]16[28]Yes[28] YesNo9 20 No No64 + 64[25]1 MiB[28]4 MiB[25]2, 3 (A8X)?
Twister 2015 ARMv8.0‑A6-wide[28]16[28]Yes[28] YesNo9 16 / 14 No No64 + 64[28]3 MiB[28]4 MiB[28]
No (A9X)
2?
Hurricane 2016 ARMv8.1‑A 6-wide[29] 16 Yes "big" (In A10/A10X paired with "LITTLE" Zephyr
cores)
9 16 (A10)
10 (A10X)
No No 64 + 64[30] 3 MiB[30] (A10)
8 MiB (A10X)
4 MiB[30] (A10)
No (A10X)
2x Hurricane + 2x Zephyr (A10)
3x Hurricane + 3x Zephyr (A10X)
?
Zephyr 2016 ARMv8.1‑A 3-wide 12 Yes LITTLE 5 16 (A10)
10 (A10X)
No No 32 + 32[31] 1 MiB 4 MiB[30] (A10)
No (A10X)
2x Hurricane + 2x Zephyr (A10)
3x Hurricane + 3x Zephyr (A10X)
?
Monsoon 2017 ARMv8.2‑A[32] 7-wide 16 Yes "big" (In Apple A11 paired with "LITTLE" Mistral
cores)
13 10 No No 64 + 64[31] 8 MiB No 2x Monsoon + 4× Mistral ?
Mistral 2017 ARMv8.2‑A[32] 3-wide 12 Yes LITTLE 5 10 No No 32 + 32[31] 1 MiB No 2x Monsoon + 4× Mistral ?
Vortex 2018 ARMv8.3‑A[33] 7-wide 16 Yes "big" (In Apple A12/Apple A12X/Apple A12Z paired with "LITTLE" Tempest
cores)
13 7 No No 128 + 128[31] 8 MiB No 2x Vortex + 4x Tempest (A12)
4x Vortex + 4x Tempest (A12X/A12Z)
?
Tempest 2018 ARMv8.3‑A[33] 3-wide 12 Yes LITTLE 5 7 No No 32 + 32[31] 2 MiB No 2x Vortex + 4x Tempest (A12)
4x Vortex + 4x Tempest (A12X/A12Z)
?
Lightning 2019 ARMv8.4‑A [34] 8-wide 16 Yes 560 "big" (In Apple A13 paired with "LITTLE" Thunder
cores)
13 7 No No 128 + 128[35] 8 MiB No 2x Lightning + 4x Thunder ?
Thunder 2019 ARMv8.4‑A [36] 3-wide 12 Yes LITTLE 5 7 No No 96 + 48[37] 4 MiB No 2x Lightning + 4x Thunder ?
Firestorm 2020 ARMv8.4‑A 8-wide[38] 630[39] 5 No 2x Firestorm + 4x Icestorm ?
Icestorm 2020 ARMv8.4‑A 5 No 2x Firestorm + 4x Icestorm ?
Nvidia Denver[40][41] 2014 ARMv8‑A 2-wide hardware
decoder, up to
7-wide variable-
length VLIW
micro-ops
13 Not if the hardware
decoder is in use.
Can be provided
by dynamic software
translation into VLIW.
Direct+
Indirect branch
prediction
No 7 28 No No 128 + 64 2 MiB No 2 ?
Denver 2[42] 2016 ARMv8‑A ? 13 Not if the hardware
decoder is in use.
Can be provided
by dynamic software
translation into VLIW.
Direct+
Indirect branch
prediction
"Super" Nvidia's own implementation ? 16 No No 128 + 64 2 MiB No 2?
Carmel 2018 ARMv8.2‑A ? Direct+
Indirect branch
prediction
? 12 No No 128 + 64 2 MiB (4 MiB @ 8 cores) 2 (+ 8) ?
Cavium ThunderX[43][44] 2014 ARMv8-A2-wide9[44]Yes[43] Two-level? 28 No No78 + 32[45][46]16 MiB[45][46]No8–16, 24–48?
ThunderX2
[47](ex. Broadcom Vulcan[48])
2018[49] ARMv8.1-A
[50]
4-wide
"4 μops"[51][52]
?Yes[53] Multi-level?? 16[54] SMT4 No32 + 32
(data 8-way)
256 KiB
per core[55]
1 MiB
per core[55]
16-32[55]?
Marvell ThunderX3 2020[56] ARMv8.3+[56]8-wide?Yes
4-wide dispatch
Multi-level?7 7[56] SMT4[56] ?64 + 32512 KiB
per core
90 MiB60?
Applied

Micro

Helix 2014???? ??? 40 / 28 No No32 + 32 (per core;
write-through
w/parity)[57]
256 KiB shared
per core pair (with ECC)
1 MiB/core2, 4, 8?
X-Gene 2013 ?4-wide15Yes ??? 40[58] No No8 MiB84.2
X-Gene 2 2015 ?4-wide15Yes ??? 28[59] No No8 MiB84.2
X-Gene 3[59] 2017 ???? ??? 16 No No??32 MiB32?
Qualcomm Kryo 2016 ARMv8-A??Yes Two-level?"big" or "LITTLE"
Qualcomm's own similar implementation
? 14[60] No No32+24[61]0.5–1 MiB2, 46.3
Kryo 2XX 2017 ARMv8-A 2-wide 11–12Yes
7-wide dispatch
Two-levelbig 7 14 / 11 / 10 [62] No No 64 + 32/64? 512 KiB/Gold Core No 4?
2-wide 8No 0 Conditional+
Indirect branch
prediction
? 2 8–64? + 8–64? 256 KiB/Silver Core 4?
Kryo 3XX 2018 ARMv8.2-A 3-wide 11–13Yes
8-wide dispatch
Two-levelbig 8 10[62] No No 64+64[62] 256 KiB/Gold Core 2 MiB 4?
2-wide 8No 0 Conditional+
Indirect branch
prediction
? 28 16–64? + 16–64? 128 KiB/Silver 4?
Kryo 4XX 2018

2019

ARMv8.2-A 4-wide 11–13Yes
8-wide dispatch
Yesbig 8 11 / 8 / 7 No No 64 + 64 512 KiB/Gold Prime

256 KiB/Gold

2 MiB 1+3?
2-wide 8No 0 Conditional+
Indirect branch
prediction
? 2 16–64? + 16–64? 128 KiB/Silver 4 ?
Kryo 5XX 2019 ARMv8.2-A 4-wide 11–13Yes
8-wide dispatch
Yesbig 8 No ? 512 KiB/Gold Prime

256 KiB/Gold

3 MiB 1+3
2-wide 8No 0 Conditional+
Indirect branch
prediction
2 ? 128 KiB/Silver 4 MiB
Kryo 6XX 2020 ARMv8.4-A Yesbig ? 64 + 64 1024 KiB/Gold Prime

512 KiB/Gold

4 MiB 1+3+4
Falkor[63][64] 2017[65] "ARMv8.1-A features";[64] AArch64 only (not 32-bit)[64]4-wide10–15Yes
8-wide dispatch
Yes?8 10 No 24 KiB88[64] + 32500KiB1.25MiB40-48?
Samsung M1[66][67] 2015 ARMv8-A4-wide13[68]Yes
9-wide dispatch[69]
96 big8 14 No No64 + 322 MiB[70]no4?
M2[66][67] 2019 ARMv8-A 100Two-levelbig 10 64 + 64
M3[68][71] 2018 ARMv8.2-A6-wide15Yes
12-wide dispatch
228Two-levelbig12 10 No No64 + 64512 KiB per core4096KB4?
M4[72] 2019 ARMv8.2-A 6-wide 15Yes
12-wide dispatch
228Two-levelbig 12 8 / 7 No No 64 + 64 512 KiB per core 4096KB 2 ?
M5[73] 2020 Yes
12-wide dispatch
228Two-levelbig No 64 + 64
Fujitsu A64FX[74][75] 2019 ARMv8.2-A 4/2-wide 7+Yes
5-way?
Yesn/a 8+ 512b[76] 7 No No 64 + 64 8MiB per 12+1 cores No 48+4 1.9GHz+; 15GF/W+.
HiSilicon TaiShan V110[77] 2019 ARMv8.2-A 4-wide ? Yes n/a 8 7 No No 64 + 64 512 KiB per core 1 MiB per core ? ?
Company Core Released Revision Decode Pipeline
depth
Out-of-order
execution
Branch
prediction
big.LITTLE role Exec.
ports
SIMD Fab
(in nm)
Simult. MT L0 cache L1 cache
Instr + Data
(in KiB)
L2 cache L3 cache Core
configu-
rations
DMIPS/
MHz
ARM part number (in the main ID register)

As Dhrystone (implied in "DMIPS") is a synthetic benchmark developed in 1980s, it is no longer representative of prevailing workloads  use with caution.

See also

References

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