Intel Core i3-8140U vs Intel Core i7-8557U Full Specs

Summary

2 Cores 4 Threads 2.1GHz	4 Cores 8 Threads 1.7GHz
TDP 15W	TDP 15W
Bandwidth 42.7GB/s DDR4·LPDDR3	Bandwidth 42.7GB/s DDR4·LPDDR3
iGPU UHD 620 1000MHz	iGPU Iris Plus 645 1150MHz
Peak·FP32·FP16 384 GFLOPSFP16	Peak·FP32·FP16 1.77 TFLOPSFP16
Socket BGA 1528	Socket BGA 1528

Highlights

Geekbench 6 Single

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

Core i3-8140U1,190

x1

Core i7-8557U1,360

x1.14

Show Top Score

Core Config

2 Cores	4 Cores
4 Threads	8 Threads

Clocks

Base Clock 2.1GHz	Base Clock 1.7GHz
Boost Clock 3.9GHz	Boost Clock 4.5GHz
Overclocking Locked	Overclocking Locked

Cache

L1i 32KB	L1i 32KB
L1d 32KB	L1d 32KB
L2 256KB	L2 256KB
L3 4MB	L3 8MB
L4 Cache -	L4 Cache 128MB

Memory

Type DDR4·LPDDR3	Type DDR4·LPDDR3
Max Memory 64GB	Max Memory 64GB
ECC No	ECC No
Channels 2	Channels 2
Bus Width 128-bit	Bus Width 128-bit
Speed 2666MT/s	Speed 2666MT/s
Bandwidth 42.7GB/s	Bandwidth 42.7GB/s
Bandwidth Calculator Channels Transfer Rate2666MT/s Calculated Bandwidth 42.7GB/s	Bandwidth Calculator Channels Transfer Rate2666MT/s Calculated Bandwidth 42.7GB/s

Power & Thermals

TDP 15W	TDP 15W
cTDP-down 10W	cTDP-down -
Max Operating Temp 100°C Max	Max Operating Temp 100°C Max

Chipset Bus

Bus Type DMI	Bus Type DMI
Bus Config 4 lanes	Bus Config 4 lanes
Bus Speed 8GT/s	Bus Speed 8GT/s
Bus Bandwidth 4GB/s	Bus Bandwidth 4GB/s

Expansion

PCIe PCIe 3.0 x16 15.8GB/sBandwidth

PCIe PCIe 3.0 x16 15.8GB/sBandwidth

iGPU

iGPU UHD 620 1000MHz	iGPU Iris Plus 645 1150MHz
Shaders 192	Shaders 384
Boost Clock 1GHz	Boost Clock 1.15GHz
Peak·FP32·FP16 384 GFLOPSFP16	Peak·FP32·FP16 1.77 TFLOPSFP16

Controller

Controller Model -	Controller Model 300 Series U+
Codename -	Codename Coffee Lake
PCIe -	PCIe -

Chip

Manufacturer Intel	Manufacturer Intel
ISA x86-64	ISA x86-64
Architecture Skylake	Architecture Skylake
Family Core 8th Gen	Family Core 8th Gen
Branding	Branding
Codename Coffee Lake-B Coffee Lake-4C-GT2Variant	Codename Coffee Lake-U Coffee Lake-4C-GT3Variant
Market Segment Laptop	Market Segment Laptop
Release Date Apr 5, 2018	Release Date Apr 5, 2018

Fabrication

Foundry Intel	Foundry Intel
Other Foundries -	Other Foundries InteleDRAM IntelPCH
Fabrication Node 14nm++ - -	Fabrication Node 14nm++ 14nmeDRAM 14nmPCH
Die Size 126mm² - -	Die Size 148mm² 63mm²eDRAM 37mm²PCH
Transistor Count 2.1 Billion	Transistor Count 2.5 Billion
Transistor Density 17 MTr/mm²	Transistor Density 17 MTr/mm²

Images

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Used In

Laptops -

Laptops MacBook Pro 13(Two Ports, Mid 2019)MacBook Pro 13(Two Ports, Mid 2020)

Competitors

IntelCore i3-8140U vs CPU AMDRyzen AI 5 PRO 340 IntelCore i3-8140U vs CPU AMDRyzen AI 5 340 IntelCore i3-8140U vs CPU AMDRyzen AI 7 PRO 350 Show 12 more

IntelCore i7-8557U vs CPU AMDRyzen AI 5 PRO 340 IntelCore i7-8557U vs CPU AMDRyzen AI 5 340 IntelCore i7-8557U vs CPU AMDRyzen 3 210 Show 12 more