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Hexagon - Microarchitectures - Qualcomm
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Hexagon µarch
General Info
Arch TypeDSP
DesignerQualcomm
ManufacturerTSMC
Process65 nm, 45 nm, 28 nm, 14 nm, 10 nm
Pipeline
Type4-way VLIW, 4-thread SMT
OoOENo
Decode4-way
Instructions
ExtensionsHVX

Hexagon is VLIW DSP architecture designed by Qualcomm. It is used in many Qualcomm's SoC as Audio, Sensor or Compute coprocessor, and in the many Qualcomm modems. Usually runs some kind of Real-time OS, optimized for low power and small chip area. Supports of simultaneous execution of several threads, with interleaved multithreading in V1-V4 and dynamic multithreading since V5.

Architecture[edit]

Versions of Hexagon Architecture:

  • V1 - 65nm, October 2006
  • V2 - 65nm, December 2007
  • V3M - 45nm, June 2009
  • V3C - 45nm, August 2009
  • V3L - 45nm, November 2009
  • V4M - 28nm, December 2010
  • V4C - 28nm, December 2010
  • V4L - 28nm, April 2011
  • V5A - 28nm, December 2012
  • V5H - 28nm, December 2012
  • Hexagon 400
    • Only Fixed Point
  • Hexagon 500
    • Floating Point
  • Hexagon 600
    • Hexagon Vector eXtensions (HVX) added

Overview[edit]

Block Diagram[edit]

Memory Hierarchy[edit]

  • L1I Cache:
  • L1D Cache:
  • L2 Cache:
  • L3 Cache:
  • TLBs:

Versions[edit]

DSP/NPU
versions
Process
node, nm
Introduction
(release)
Threads
(TOPS)
Per-thread
clock, MHz
Total core
clock, MHz
Products
QDSP6 V1 65 nm 2006
QDSP6 V2 65 nm 2007 6 100 600 MHz Snapdragon S1
• QSD8250 • QSD8650 •
QDSP6 V3 (1 Gen) 45 nm 2009 6 67 400 MHz Snapdragon S3
• APQ8060 •
QDSP6 V3 (2 Gen) 45 nm 2009 4 100 400 MHz Snapdragon S3
• MSM8260 • MSM8660 •
QDSP6 V4
(V4M, V4C, V4L)
28 nm 2010 3 167 500 MHz Snapdragon S4 • Plus • Pro • Prime •
Snapdragon 6 • 600 •
QDSP6 V5
(V5A, V5H)
28 nm 2013 3 200 or greater
with DMT
600 MHz Snapdragon 4
• 410 • 412 • 800 • 801 •
536 28 nm
12 nm
2014 Snapdragon 2
• 205 • 208 • 210 • 212 •
Snapdragon 4
• 425 • 427 • 429 • 430 • 435 • 439
V50 (or QDSP6 V5.0) 28 nm 2014 700 MHz
800 MHz (805)
Snapdragon
• 415 • 610 • 615 • 616 • 805 •
546 28 nm
14 nm
2015 Snapdragon 6
• 450 • 617 • 625 • 626 • 632
V56 (or QDSP6 V5.6) 28 nm
20 nm
2015 700 MHz
800 MHz (808/810)
Snapdragon 6
• 650 • 652 • 653 • 808 • 810 •
642 14 nm 2017 Snapdragon 6
• 630 •
680 (or QDSP6 V6) 14 nm 2016 4 500 787 MHz (660)
2.0 GHz (820 & 821)
Snapdragon 6 • 636 • 660
Snapdragon 8 • 820 • 821 •
682 10 nm 2017 Snapdragon 8
• 835 •
683 11 nm 2020 Snapdragon 4
460662
685 11 nm
10 nm
2018 (3 TOPS) Snapdragon
670675678
710712845850
686 6/8 nm
11 nm
2019 (3.3 TOPS) Snapdragon 4
• 480 • 480+ •
Snapdragon 6
665 • 680 • 685 • 695 •
688 8 nm 2019 (3.6 TOPS) Snapdragon 7
730730G732G
690 7 nm 2019 (7 TOPS /
9 TOPS)
Snapdragon 8
855855+860
• 8c • 8cx • 8cx (Gen 2) •
• Microsoft SQ1 • SQ2 •
692 8 nm 2020 (5 TOPS) Snapdragon 7
• 690 • 720G
7c • 7c (Gen 2) •
694 8 nm 2020 (4.7 TOPS) Snapdragon 7
• 750G •
696 7 nm 2020 (5.4 TOPS) Snapdragon 7
• 765 • 765G • 768G •
698 7 nm 2020 (15 TOPS) Snapdragon 8
865 • 865+ • 870 • 8cx (Gen 3) •
• Microsoft SQ3 •
770 6 nm
5 nm
2021 (12 TOPS) Snapdragon 7
• 778G • 778G+ • 780G • 782G •
780 5 nm 2021 (26 TOPS /
32 TOPS)
Snapdragon 8
• 888 • 888+ •
790 (NPU/HTP)[1] 4 nm 2021 (32 TOPS)
(INT8)
Snapdragon 8
8 (Gen 1) • 8+ (Gen 1) •
NPU (HTP Gen 2) 4 nm 2022 (26 TOPS)
(INT8)
Snapdragon 8
8 (Gen 2) •
NPU (HTP Gen 3) 4 nm 2023 (34 TOPS)
(INT8)
Snapdragon 8
8 (Gen 3) • 8s (Gen 3) •
NPU (HTP Gen 4) 3 nm 2024 (50 TOPS)
(INT8)[2]
Snapdragon 8
8 Elite •
NPU (HTP Gen 4) 4 nm 2024 (45 TOPS)
(INT8)[3][4]
Snapdragon X
• X • X Elite • X Plus •

Core[edit]

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Die[edit]

All SoCs using Hexagon[edit]

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Documents[edit]

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References[edit]

  1. https://ai-benchmark.com/ranking_processors
  2. https://www.reddit.com/r/LocalLLaMA/comments/1gy9wsx/npu_information_for_apple_and_snapdragon/
  3. https://www.ernestchiang.com/en/notes/general/tops-comparison-table-by-brand/
  4. https://www.anandtech.com/show/21445/qualcomm-snapdragon-x-architecture-deep-dive
codenameHexagon +
designerQualcomm +
full page namequalcomm/microarchitectures/hexagon +
instance ofmicroarchitecture +
manufacturerTSMC +
nameHexagon +
process65 nm (0.065 μm, 6.5e-5 mm) +, 45 nm (0.045 μm, 4.5e-5 mm) +, 28 nm (0.028 μm, 2.8e-5 mm) +, 14 nm (0.014 μm, 1.4e-5 mm) + and 10 nm (0.01 μm, 1.0e-5 mm) +