Apple M1 Ultra (20C48G) vs Intel Xeon 654 Full Specs

Summary

20 Cores(16P+4E) 20 Threads(16P+4E) 3.23GHz	18 Cores 36 Threads 3.1GHz
TDP 220W	TDP 200W
Bandwidth 819.2GB/s LPDDR5	Bandwidth 409.6GB/s DDR5
iGPU 48-Core M1 Ultra	iGPU 0
Peak·FP32·FP16 15.93 TFLOPSFP16	Peak·FP32·FP16 -
Socket -	Socket LGA 4710

Highlights

Geekbench 6 Single

Geekbench 6 Single Geekbench 6 Multi Max Bandwidth iGPU Peak iGPU FP32 iGPU FP16 NPU TOPS TDP

M1 Ultra (20C48G)2,400

x1

Xeon 654-

-

Show Top Score

Core Config

20 Cores 16P 4E	18 Cores 18P -
20 Threads 16P 4E	36 Threads 36P -

Clocks

Base Clock 3.23GHz	Base Clock 3.1GHz
Boost Clock -	Boost Clock 4.8GHz
Overclocking Locked	Overclocking Locked

Cache

L1i 192KB P 128KB E	L1i 64KB P -
L1d 128KB P 64KB E	L1d 48KB P -
L2 48MB P shared 4MB E shared	L2 2MB P - -
L3 -	L3 72MB
SLC Cache 96MB	SLC Cache -

Memory

Type LPDDR5	Type DDR5
Max Memory 128GB	Max Memory 4.1TB
ECC No	ECC Yes
Channels 8	Channels 8
Bus Width 1024-bit	Bus Width 512-bit
Speed 6400MT/s	Speed 6400MT/s
Bandwidth 819.2GB/s	Bandwidth 409.6GB/s
Bandwidth Calculator Channels Transfer Rate6400MT/s Calculated Bandwidth 819.2GB/s	Bandwidth Calculator Channels Transfer Rate6400MT/s Calculated Bandwidth 409.6GB/s

Power & Thermals

TDP 220W	TDP 200W
Peak Power -	Peak Power 240W
Max Operating Temp 100°C Max	Max Operating Temp 96°C Max
T-Case -	T-Case 72°C Max

Expansion

PCIe PCIe 4.0 x28 55.1GB/sBandwidth

PCIe PCIe 5.0 x128 504.1GB/sBandwidth

iGPU

iGPU 48-Core M1 Ultra	iGPU 0
Shaders 6144	Shaders -
Boost Clock 1.3GHz	Boost Clock -
Peak·FP32·FP16 15.93 TFLOPSFP16	Peak·FP32·FP16 -

NPU

NPU Model H13 Eos	NPU Model -
NPU Cores 32	NPU Cores -
NPU Clock 1.5GHz	NPU Clock -
Performance 22 TOPSFP16	Performance -

Chip

Manufacturer Apple	Manufacturer Intel
ISA AArch64	ISA x86-64
Architecture Apple Silicon 10ARMv8.5-A	Architecture Granite Rapids
Family M Series	Family Xeon 6
Branding	Branding
Codename Jade-2C - M1 UltraVariant FirestormP-Core - IcestormE-Core	Codename Granite Rapids-D 27Die Granite Rapids-HCCVariant Redwood CoveP-Core 18M-Core -
Market Segment Workstation	Market Segment Workstation
Release Date Mar 8, 2022	Release Date Feb 2, 2026

Fabrication

Foundry TSMC	Foundry Intel
Other Foundries -	Other Foundries IntelIO
Fabrication Node N5 -	Fabrication Node Intel 3 Intel 7IO
Die Size 865mm² -	Die Size 598mm² 482mm²IO
Transistor Count 114 Billion	Transistor Count -
Transistor Density 132 MTr/mm²	Transistor Density -

Images

No images available

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Used In

Desktops Mac Studio(M1 Ultra, Early 2022)

Desktops -

Competitors

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IntelXeon 654 vs CPU IntelXeon 656 IntelXeon 654 vs CPU IntelXeon 638 IntelXeon 654 vs CPU IntelXeon 636 Show 12 more