Apple M4 Max (14C32G) vs Apple M1 Ultra (20C48G) Full Specs

Summary

14 Cores(10P+4E) 14 Threads(10P+4E) 4.51GHz	20 Cores(16P+4E) 20 Threads(16P+4E) 3.23GHz
TDP 140W	TDP 220W
Bandwidth 409.6GB/s LPDDR5X	Bandwidth 819.2GB/s LPDDR5
iGPU 32-Core M4 Max	iGPU 48-Core M1 Ultra
Peak·FP32·FP16 12.93 TFLOPSFP16	Peak·FP32·FP16 15.93 TFLOPSFP16

Highlights

Geekbench 6 Single

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

M4 Max (14C32G)4,018

x1.67

M1 Ultra (20C48G)2,400

x1

Show Top Score

Core Config

14 Cores 10P 4E	20 Cores 16P 4E
14 Threads 10P 4E	20 Threads 16P 4E

Clocks

Base Clock 4.51GHz	Base Clock 3.23GHz
Overclocking Locked	Overclocking Locked

Cache

L1i 192KB P 128KB E	L1i 192KB P 128KB E
L1d 128KB P 64KB E	L1d 128KB P 64KB E
L2 32MB P shared 4MB E shared	L2 48MB P shared 4MB E shared
SLC Cache 48MB	SLC Cache 96MB

Memory

Type LPDDR5X	Type LPDDR5
Max Memory 36GB	Max Memory 128GB
ECC No	ECC No
Channels 3	Channels 8
Bus Width 384-bit	Bus Width 1024-bit
Speed 8533MT/s	Speed 6400MT/s
Bandwidth 409.6GB/s	Bandwidth 819.2GB/s
Bandwidth Calculator Channels Transfer Rate8533MT/s UC·Spec·OC 409.6GB/s	Bandwidth Calculator Channels Transfer Rate6400MT/s UC·Spec·OC 819.2GB/s

Power & Thermals

TDP 140W	TDP 220W
Max Operating Temp 100°C Max	Max Operating Temp 100°C Max

Expansion

PCIe PCIe 4.0 x16 31.5GB/sBandwidth

PCIe PCIe 4.0 x28 55.1GB/sBandwidth

iGPU

iGPU 32-Core M4 Max	iGPU 48-Core M1 Ultra
Shaders 4096	Shaders 6144
Boost Clock 1.58GHz	Boost Clock 1.3GHz
Peak·FP32·FP16 12.93 TFLOPSFP16	Peak·FP32·FP16 15.93 TFLOPSFP16

NPU

NPU Model H16 Aether	NPU Model H13 Eos
NPU Cores 16	NPU Cores 32
NPU Clock 2.36GHz	NPU Clock 1.5GHz
Performance 38 TOPSINT8	Performance 22 TOPSFP16

Chip

Manufacturer Apple	Manufacturer Apple
ISA AArch64	ISA AArch64
Architecture Apple Silicon 14ARMv9.2-A	Architecture Apple Silicon 10ARMv8.5-A
Family M Series	Family M Series
Branding	Branding
Codename Brava C M4 MaxVariant AS14PP-Core AS14EE-Core	Codename Jade-2C M1 UltraVariant FirestormP-Core IcestormE-Core
Market Segment Desktop	Market Segment Workstation
Release Date Oct 30, 2024	Release Date Mar 8, 2022
Part Number T6041	Part Number APL 1W06

Fabrication

Foundry TSMC	Foundry TSMC
Fabrication Node N3E	Fabrication Node N5
Die Size 454mm²	Die Size 865mm²
Transistor Count 76B	Transistor Count 114B
Transistor Density 167 MTr/mm²	Transistor Density 132 MTr/mm²

Images