AMD Athlon II X2 221 vs AMD Athlon II X4 638 Full Specs

Summary

2 Cores 2 Threads 2.8GHz	4 Cores 4 Threads 2.7GHz
TDP 65W	TDP 65W
Bandwidth 25.6GB/s DDR3	Bandwidth 29.9GB/s DDR3
iGPU 0	iGPU 0
Socket FM1	Socket FM1

Highlights

Geekbench 6 Single

Geekbench 6 Single Geekbench 6 Multi Max Bandwidth TDP

Athlon II X2 221280

x1

Athlon II X4 638292

x1.04

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Core Config

2 Cores	4 Cores
2 Threads	4 Threads

Clocks

Base Clock 2.8GHz	Base Clock 2.7GHz
Overclocking Locked	Overclocking Locked

Cache

L1i 64KB	L1i 64KB
L1d 64KB	L1d 64KB
L2 512KB	L2 1MB

Memory

Type DDR3	Type DDR3
Max Memory 32GB	Max Memory 32GB
ECC No	ECC No
Channels 2	Channels 2
Bus Width 128-bit	Bus Width 128-bit
Speed 1600MT/s	Speed 1866MT/s
Bandwidth 25.6GB/s	Bandwidth 29.9GB/s
Bandwidth Calculator Channels Transfer Rate1600MT/s Calculated Bandwidth 25.6GB/s	Bandwidth Calculator Channels Transfer Rate1866MT/s Calculated Bandwidth 29.9GB/s

Power & Thermals

TDP 65W

TDP 65W

Chipset Bus

Bus Type UMI	Bus Type UMI
Bus Config 4 lanes	Bus Config 4 lanes
Bus Speed 4GT/s	Bus Speed 4GT/s
Bus Bandwidth 2GB/s	Bus Bandwidth 2GB/s

Chip

Manufacturer AMD	Manufacturer AMD
ISA x86-64	ISA x86-64
Architecture K10	Architecture K10
Family Athlon	Family Athlon
Branding	Branding
Codename Llano LynxDie	Codename Llano LynxDie
Market Segment Desktop	Market Segment Desktop
Release Date Feb 8, 2012	Release Date Feb 8, 2012

Fabrication

Foundry GlobalFoundries	Foundry GlobalFoundries
Fabrication Node 32nm	Fabrication Node 32nm
Die Size 228mm²	Die Size 228mm²
Transistor Count 1.2 Billion	Transistor Count 1.2 Billion
Transistor Density 5 MTr/mm²	Transistor Density 5 MTr/mm²

Images

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Competitors

AMDAthlon II X2 221 vs CPU Intel300 AMDAthlon II X2 221 vs CPU Intel300T AMDAthlon II X2 221 vs CPU IntelCore Ultra 5 235A Show 8 more

AMDAthlon II X4 638 vs CPU AMDRyzen 3 5305G AMDAthlon II X4 638 vs CPU AMDRyzen 3 PRO 8300G AMDAthlon II X4 638 vs CPU AMDRyzen 3 5305GE Show 12 more