Apple M3 Ultra (28C60G) vs Intel Xeon w7-3555 Full Specs

Summary

28 Cores(20P+8E) 28 Threads(20P+8E) 4.05GHz	28 Cores 56 Threads 2.7GHz
TDP 300W	TDP 325W
Bandwidth 819.2GB/s LPDDR5	Bandwidth 307.2GB/s DDR5
iGPU 60-Core M3 Ultra	iGPU 0
Peak·FP32·FP16 21.2 TFLOPSFP16	Peak·FP32·FP16 -
Socket -	Socket LGA 4677

Highlights

Geekbench 6 Single

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

M3 Ultra (28C60G)3,221

x1.40

Xeon w7-35552,300

x1

Show Top Score

Core Config

28 Cores 20P 8E	28 Cores 28P -
28 Threads 20P 8E	56 Threads 56P -

Clocks

Base Clock 4.05GHz	Base Clock 2.7GHz
Boost Clock -	Boost Clock 4.8GHz
Overclocking Locked	Overclocking Locked

Cache

L1i 192KB P 128KB E	L1i 32KB P -
L1d 128KB P 64KB E	L1d 48KB P -
L2 64MB P shared 4MB E shared	L2 2MB P - -
L3 -	L3 75MB
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 4800MT/s
Bandwidth 819.2GB/s	Bandwidth 307.2GB/s
Bandwidth Calculator Channels Transfer Rate6400MT/s Calculated Bandwidth 819.2GB/s	Bandwidth Calculator Channels Transfer Rate4800MT/s Calculated Bandwidth 307.2GB/s

Power & Thermals

TDP 300W	TDP 325W
Peak Power -	Peak Power 390W
Max Operating Temp 100°C Max	Max Operating Temp 102°C Max
T-Case -	T-Case 78°C Max
Included Cooler -	Included Cooler 0

Chipset Bus

Bus Type -	Bus Type DMI
Bus Config -	Bus Config 8 lanes
Bus Speed -	Bus Speed 8GT/s
Bus Bandwidth -	Bus Bandwidth 8GB/s

Expansion

PCIe PCIe 4.0 x32 63GB/sBandwidth

PCIe PCIe 5.0 x112 441.1GB/sBandwidth

iGPU

iGPU 60-Core M3 Ultra	iGPU 0
Shaders 7680	Shaders -
Boost Clock 1.38GHz	Boost Clock -
Peak·FP32·FP16 21.2 TFLOPSFP16	Peak·FP32·FP16 -

NPU

NPU Model H15 Erebus	NPU Model DL Boost
NPU Cores 32	NPU Cores -
NPU Clock 2.36GHz	NPU Clock -
Performance 36 TOPSFP16	Performance -

Chip

Manufacturer Apple	Manufacturer Intel
ISA AArch64	ISA x86-64
Architecture Apple Silicon 13ARMv8.6-A	Architecture Sapphire Rapids
Family M Series	Family Xeon 5
Branding	Branding
Codename Palma-D M3 UltraVariant EverestP-Core Sawtooth E-Core	Codename Sapphire Rapids-HBM Sapphire Rapids-XCCVariant Golden CoveP-Core -
Market Segment Workstation	Market Segment Workstation
Release Date Mar 5, 2025	Release Date Jul 1, 2024

Fabrication

Foundry TSMC	Foundry Intel
Fabrication Node N3B	Fabrication Node Intel 7
Die Size 954mm²	Die Size 1576mm²
Transistor Count 184 Billion	Transistor Count 112 Billion
Transistor Density 193 MTr/mm²	Transistor Density 71 MTr/mm²

Images

No images available

No images available

Used In

Desktops Mac Studio(M3 Ultra, Early 2025)

Desktops -

Competitors

AppleM3 Ultra (28C60G) vs CPU AppleM3 Ultra (32C80G) AppleM3 Ultra (28C60G) vs CPU IntelXeon 676X AppleM3 Ultra (28C60G) vs CPU IntelXeon w7-3545 Show 12 more

IntelXeon w7-3555 vs CPU IntelXeon w7-3545 IntelXeon w7-3555 vs CPU IntelXeon w7-3565X IntelXeon w7-3555 vs CPU IntelXeon w9-3575X Show 12 more