Apple M5 Ultra 36 Cores
vs
AMD EPYC 9966
vs
CPU Comparison Result
Below are the results of a comparison of
Apple M5 Ultra 36 Cores
and
AMD EPYC 9966
processors based on key performance characteristics, as well as power consumption and much more.
Advantages
- More Total Cores: 192 (36 vs 192)
- Higher Memory Type: DDR5 RDIMM MRDIMM (Unified memory vs DDR5 RDIMM MRDIMM)
Basic
Apple
Label Name
AMD
August 2026
Launch Date
-
Desktop
Platform
Server
Apple M5
CPU Architecture
-
Apple M5 Ultra
CPU Name
-
Apple M5 Ultra 36 Cores
Model Name
EPYC 9966
M5
Generation
-
CPU Specifications
Over 4.4 TB/s
Interconnect Bandwidth
-
UltraFusion quad-die architecture
Interconnect Technology
-
4.61 GHz
Super-core Max Frequency
-
36
Total Cores
Cores is a hardware term that describes the number of independent central processing units in a single computing component (die or chip).
192
36
Total Threads
384
24
Performance-cores
-
12
Super-cores
-
-
Basic Frequency
2.9 GHz
-
Max Turbo Frequency
Up to 4 GHz
-
L3 Cache
768 MB
3 nm
Technology
Lithography refers to the semiconductor technology used to manufacture an integrated circuit, and is reported in nanometer (nm), indicative of the size of features built on the semiconductor.
-
-
PCI Express Version
PCI Express Revision is the supported version of the PCI Express standard. Peripheral Component Interconnect Express (or PCIe) is a high-speed serial computer expansion bus standard for attaching hardware devices to a computer. The different PCI Express versions support different data rates.
PCIe® 6.0 x96
Memory Specifications
Unified memory
Memory Type
DDR5 RDIMM MRDIMM
512 GB
Max Memory Size
Max memory size refers to the maximum memory capacity supported by the processor.
-
-
Memory Channels
The number of memory channels refers to the bandwidth operation for real world application.
16
-
Bus Speed
8000 MT/s / 12800 MT/s
1.2 TB/s
Max Memory Bandwidth
Max Memory bandwidth is the maximum rate at which data can be read from or stored into a semiconductor memory by the processor (in GB/s).
-
GPU Specifications
DisplayPort 2.1, HDMI 2.1
External Display Standard
-
Apple M5 Ultra 80-core GPU
GPU Name
-
Supported
Hardware-accelerated ray tracing
-
Up to 8K at 60Hz
Max External Display Resolution
-
Up to 33 streams of 8K ProRes 422 at 30 fps
Video Concurrency
-
H.264, HEVC, ProRes, ProRes RAW, AV1
Video Decode
-
H.264, HEVC, ProRes, ProRes RAW
Video Encode
-
80
Graphics Core Count
-
Up to 8K at 60Hz
Max Resolution
-
8
Number of Displays Supported
-
Metal
GPU APIs
-
Hardware-accelerated H.264, HEVC, ProRes and ProRes RAW; AV1 decode
Media Engine
-
2
Video Decode Engines
-
4
Video Encode Engines
-
4
ProRes Encode/Decode Engines
-
AI Specifications
Apple Neural Engine with Neural Accelerators in each GPU core
AI Engine
-
32
Neural Engine Core Count
-
32-core Neural Engine
NPU Name
-
Interfaces and Ports
Thunderbolt 5
Thunderbolt Support
-
Supported
USB4 Support
-
Miscellaneous
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