Intel Core i9-11900KB vs Apple M1 Ultra (20C48G) Full Specs

Summary

8 Cores 16 Threads 3.3GHz	20 Cores(16P+4E) 20 Threads(16P+4E) 3.23GHz
TDP 65W	TDP 220W
Bandwidth 51.2GB/s DDR4	Bandwidth 819.2GB/s LPDDR5
iGPU UHD 32EU 1450MHz Gen 12	iGPU 48-Core M1 Ultra
Peak·FP32·FP16 1.49 TFLOPSFP16	Peak·FP32·FP16 15.93 TFLOPSFP16
Socket BGA 1787	Socket -

Highlights

Geekbench 6 Single

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

Core i9-11900KB2,250

x1

M1 Ultra (20C48G)2,400

x1.07

Show Top Score

Core Config

8 Cores 8P -	20 Cores 16P 4E
16 Threads 16P -	20 Threads 16P 4E

Clocks

Base Clock 3.3GHz	Base Clock 3.23GHz
Boost Clock 4.9GHz	Boost Clock -
Overclocking Unlocked	Overclocking Locked

Cache

L1i 32KB P -	L1i 192KB P 128KB E
L1d 48KB P -	L1d 128KB P 64KB E
L2 1.25MB P - -	L2 48MB P shared 4MB E shared
L3 24MB	L3 -
SLC Cache -	SLC Cache 96MB

Memory

Type DDR4	Type LPDDR5
Max Memory 128GB	Max Memory 128GB
ECC No	ECC No
Channels 2	Channels 8
Bus Width 128-bit	Bus Width 1024-bit
Speed 3200MT/s	Speed 6400MT/s
Bandwidth 51.2GB/s	Bandwidth 819.2GB/s
Bandwidth Calculator Channels Transfer Rate3200MT/s Calculated Bandwidth 51.2GB/s	Bandwidth Calculator Channels Transfer Rate6400MT/s Calculated Bandwidth 819.2GB/s

Power & Thermals

TDP 65W	TDP 220W
cTDP-down 55W	cTDP-down -
Max Operating Temp 100°C Max	Max Operating Temp 100°C Max

Chipset Bus

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

Expansion

PCIe PCIe 4.0 x20 39.4GB/sBandwidth

PCIe PCIe 4.0 x28 55.1GB/sBandwidth

iGPU

iGPU UHD 32EU 1450MHz Gen 12	iGPU 48-Core M1 Ultra
Shaders 256	Shaders 6144
Boost Clock 1.45GHz	Boost Clock 1.3GHz
Peak·FP32·FP16 1.49 TFLOPSFP16	Peak·FP32·FP16 15.93 TFLOPSFP16

NPU

NPU Model GNA 2.0	NPU Model H13 Eos
NPU Cores -	NPU Cores 32
NPU Clock -	NPU Clock 1.5GHz
Performance -	Performance 22 TOPSFP16

Chip

Manufacturer Intel	Manufacturer Apple
ISA x86-64	ISA AArch64
Architecture Tiger Lake	Architecture Apple Silicon 10ARMv8.5-A
Family Core 11th Gen	Family M Series
Branding	Branding
Codename Tiger Lake-B Tiger Lake-8CVariant Willow CoveP-Core -	Codename Jade-2C M1 UltraVariant FirestormP-Core IcestormE-Core
Market Segment Desktop	Market Segment Workstation
Release Date Jun 11, 2021	Release Date Mar 8, 2022

Fabrication

Foundry Intel	Foundry TSMC
Fabrication Node 10nm SuperFin	Fabrication Node N5
Die Size 190mm²	Die Size 865mm²
Transistor Count 12.3 Billion	Transistor Count 114 Billion
Transistor Density 65 MTr/mm²	Transistor Density 132 MTr/mm²

Images

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Used In

Desktops -

Desktops Mac Studio(M1 Ultra, Early 2022)

Competitors

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AppleM1 Ultra (20C48G) vs CPU IntelXeon 656 AppleM1 Ultra (20C48G) vs CPU IntelXeon 654 AppleM1 Ultra (20C48G) vs CPU AppleM3 Ultra (28C60G) Show 12 more