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Square green server CPU with gold contact pads and silver heat spreader

Ampere

Ampere Altra Q64-22 64-Core 2.2 GHz LGA 4926 Server Processor AC-106409502

SKU CH-MHZR-YK313 MPN AC-106409502

64-core Arm server CPU with 2.2 GHz consistent frequency, 8-channel DDR4-3200 ECC, 128 PCIe 4.0 lanes, and 69 W average power in LGA 4926 socket

  • NameAmpere Altra
  • CPU Socket TypeLGA 4926
  • # of Cores64-Core
  • # of Threads64
  • Operating Frequency2.2 GHz
  • L1 Cache64K Instruction and 64K Data per Core
  • 64 single-threaded cores deliver predictable performance at a steady 2.2 GHz
  • 8-channel DDR4-3200 controller supports up to 4 TB ECC memory
  • 128 PCIe 4.0 lanes provide high-bandwidth I/O for dense server builds
  • TSMC 7 nm FinFET process enables 69 W average power for efficient scaling
  • LGA 4926 socket fits Ampere Altra platforms with up to 16 DIMM slots

64-core Arm server processor for cloud workloads

The Ampere Altra Q64-22 is a 64-core server CPU built on TSMC 7 nm FinFET technology. It runs at a consistent 2.2 GHz frequency across all single-threaded cores. The processor fits the LGA 4926 socket and operates at an average power of 69W. It targets cloud-native deployments that value predictable throughput per watt.

Eight-channel DDR4-3200 and 128 lanes of PCIe 4.0

The integrated memory controller supports eight channels of 72-bit DDR4-3200 with ECC. Up to 16 DIMMs can be installed in a two-DIMM-per-channel layout for a 4 TB maximum capacity. The platform exposes 128 lanes of PCIe 4.0, with an optional 64-lane CCIX configuration for multi-socket connectivity. These interfaces set the practical I/O and memory bandwidth limits for the socket.

Replaces lower-core-count Altra parts when thread

Moving from a 32-core or 48-controller Altra model to this 64-core version doubles the core count while keeping the same 32 MB system cache and consistent frequency. The upgrade is worthwhile when workloads scale across many parallel threads and can use the extra PCIe lanes. Buyers who need more than 64 cores or a larger system cache should evaluate the Altra Max line instead.

Points forts

  • 64 single-threaded cores deliver predictable performance at a steady 2.2 GHz
  • 8-channel DDR4-3200 controller supports up to 4 TB ECC memory
  • 128 PCIe 4.0 lanes provide high-bandwidth I/O for dense server builds
  • TSMC 7 nm FinFET process enables 69 W average power for efficient scaling
  • LGA 4926 socket fits Ampere Altra platforms with up to 16 DIMM slots

Caractéristiques

BrandAmpere
SeriesAmpere Altra Family
NameAmpere Altra
ModelQ64-22
CPU Socket TypeLGA 4926
# of Cores64-Core
# of Threads64
Operating Frequency2.2 GHz
L1 Cache64K Instruction and 64K Data per Core
L2 Cache1MB per Core
64-Bit SupportYes
Manufacturing TechTSMC 7 nm FinFET
Integrated Memory Controller SpeedDDR4 3200
Maximum Memory CapacityUp to 16 DIMMs (2DPC) and 4 TB total memory
Memory Channel8 Channel
Virtualization Technology SupportYes
PCI Express Revision4.0
Max # of PCI Express Lanes128 Lanes PCIe Gen4 (optional 64 lane CCIX for multi-socket support)
Average CPU Power69W
Poids d’expédition0.91 kg
Dimensions du colis203 × 178 × 127 mm

Questions sur cet article

Should I choose the Q64-22 or another Altra core count?

The Q64-22 provides 64 cores at a consistent 2.2 GHz with 128 PCIe Gen4 lanes and 8-channel DDR4-3200. The Altra family also offers 32-core and 80-core models sharing the same LGA 4926 socket and 32 MB system cache, so select based on the thread count your workloads need.

What does the consistent 2.2 GHz frequency mean for real workloads?

All 64 single-threaded cores hold 2.2 GHz without turbo variation, giving predictable throughput for cloud-native tasks. Each core has 1 MB L2 and 64 KB L1 caches, and the 69 W average power helps maintain that frequency under sustained load.

How does the PCIe 4.0 x128 interface limit expansion in practice?

The processor exposes 128 Gen4 lanes that can be bifurcated to x4 or x2, supporting up to 48 controllers. An optional 64-lane CCIX link is available for multi-socket configurations, but the single-socket I/O ceiling remains 128 lanes.

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