AMD Athlon II X4 641 vs AMD Phenom II X4 840T

Table of Contents

Physical Specifications

Socket AMD Socket FM1 AMD Socket AM3
Process size 32 nm 45 nm
Transistors 1,178 million 904 million
Die size 228 mm² 346 mm²
Package µPGA µPGA

Performance

Frequency 2.8 GHz 2.9 GHz
Turbo clock up to 3.2 GHz
Base clock 100 MHz 200 MHz
Multiplier 28.0x 14.5x
Multiplier unlocked No No
Voltage 1.4125 V 1.4 V
TDP 100 W 95 W

Architecture Details

Vertical Segment Desktop Desktop
Production status unknown End-of-life
Release date Feb 6th, 2012 Sep 1st, 2010
Codename Llano Zosma
Generation Athlon II X4 Phenom II X4
Part AD641XWNZ43GXAD641XWNGXBOX HD840TWFK4DGR
Memory support DDR3 Dual-channel DDR3 Dual-channel
ECC memory No No
PCI Express Gen 2

Cores

Total Cores 4 4
Total Threads 4 4
SMP # CPUs 1 1
Integrated graphics

Cache

Cache L1 128K (per core) 128K (per core)
Cache L2 1MB (per core) 512K (per core)
Cache L3 6MB (shared)

Features & Technologies

3DNow! Yes Yes
AMD-V Yes Yes
AMD64 Yes Yes
MMX Yes Yes
NX bit Yes Yes
SSE Yes Yes
SSE2 Yes Yes
SSE3 Yes Yes
SSE4A Yes Yes
Turbo Core Yes

Notes

Notes OEM only.

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