Gracemont (microarchitecture)

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Gracemont
General information
LaunchedNovember 4, 2021; 2 years ago (2021-11-04)[1]
Marketed byIntel
Designed byIntel
Common manufacturer
  • Intel
Performance
Max. CPU clock rate0.7 GHz to 4.3 GHz
Cache
L1 cache96 KB per core:
  • 64 KB instructions
  • 32 KB data
L2 cache2 or 4 MB per module
L3 cache3 MB per module
Architecture and classification
Instruction setx86-64
Extensions
Physical specifications
Cores
  • 4 per module
Products, models, variants
Product code names
History
PredecessorTremont
SuccessorCrestmont

Gracemont is a microarchitecture for low-power processors used in systems on a chip (SoCs) made by Intel, and is the successor to Tremont. Like its predecessor, it is also implemented as low-power cores in a hybrid design of the Alder Lake, Raptor Lake and Raptor Lake Refresh processors.[2]

Design

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Gracemont is the fourth generation out-of-order low-power Atom microarchitecture, built on the Intel 7 manufacturing process.[3]

The Gracemont microarchitecture has the following enhancements over Tremont:[4][3]

  • Level 1 cache per core:
    • eight-way-associative 64 KB instruction cache
    • eight-way-associative 32 KB data cache
  • New On-Demand Instruction Length Decoder
  • Instruction issue increased to five per clock (from four)
  • Instruction retire increased to eight per clock (from seven)
  • Execution ports (functional units) there are now 17 (from eight)
  • Reorder buffer increased to 256 entries (from 208)
  • Improved branch prediction
  • Support for AVX, AVX2, FMA3 and AVX-VNNI instructions[5]
  • 2 or 4 MB shared L2 cache per 4-core cluster[3] Alder Lake-S/H/P/U family has 2 MB. Raptor Lake-S/H/P/U family has 4 MB.

Technology

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List of Gracemont processors

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The microarchitecture is used as the efficient cores of the 12th generation of Intel Core hybrid processors (codenamed "Alder Lake"), the 13th generation of Intel Core hybrid processors (codenamed "Raptor Lake") and the 14th generation of Intel Core hybrid processors (codenamed "Raptor Lake Refresh"). It's used exclusively in the Alder Lake-N line-up.

Alder Lake-N

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Branding Model Cores
(threads)
Clock rate (GHz) GPU Cache TDP Release date Price
(USD)[a]
Base Turbo Model EUs Clock rate
(GHz)
L2 L3 Base cTDP
Down
Base Turbo
Core
i3
N305 8 (8) 1.8 3.8 UHD
Graphics
32 ? 1.25 2 MB 6 MB 15 W 9 W Jan 3, 2023 $309
N300 1.1 7 W
Intel
Processor
N200 4 (4) 0.8 3.7 0.75 6 W $193
N100 0.8 3.4 24 $128
N97 2.0 3.6 0.85 1.2 12 W $128
N95 1.7 3.4 16 ? 15 W ?
N50 2 (2) 1.0 3.4 0.6 0.75 6 W $128
Atom x7425E 4 (4) 1.5 24 0.8 1.0 12 W $58
x7213E 2 (2) 1.7 3.2 16 10 W $47
x7211E 1.0 0.6 6 W $39
  1. ^ Price is Recommended Customer Price (RCP) at launch. RCP is the trade price that processors are sold by Intel to retailers and OEMs. Actual MSRP for consumers is higher

See also

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References

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  1. ^ Cutress, Ian (October 27, 2021). "Intel 12th Gen Core Alder Lake for Desktops: Top SKUs Only, Coming November 4th". AnandTech. Retrieved September 14, 2022.
  2. ^ Cutress, Ian (August 14, 2020). "Intel Alder Lake: Confirmed x86 Hybrid with Golden Cove and Gracemont for 2021". AnandTech. Retrieved September 14, 2022.
  3. ^ a b c Cutress, Ian; Frumusanu, Andrei (August 19, 2021). "Intel Architecture Day 2021: Alder Lake, Golden Cove, and Gracemont Detailed". AnandTech. Retrieved August 31, 2022.
  4. ^ "Gracemont – Microarchitectures – Intel". WikiChip. Retrieved September 14, 2022.
  5. ^ Shilov, Anton (October 7, 2020). "Intel's Upcoming Gracemont Microarchitecture to Support AVX, AVX2, and AVX-VNNI". Tom's Hardware. Retrieved September 14, 2022.