AMD Phenom II X2 B55 vs Intel Core 2 Extreme QX9650

Table of Contents

Physical Specifications

Socket AMD Socket AM3 Intel Socket 775
Process size 45 nm 45 nm
Transistors 758 million 820 million
Die size 258 mm² 2x 107 mm²
Package µPGA FC-LGA4
Foundry Intel
tCaseMax 64°C

Performance

Frequency 3 GHz 3 GHz
Turbo clock
Base clock 200 MHz 333 MHz
Multiplier 15.0x 9.0x
Multiplier unlocked No Yes
Voltage 1.425 V 1.25 V
TDP 80 W 130 W

Architecture Details

Vertical Segment Desktop Desktop
Production status End-of-life End-of-life
Release date Oct 1st, 2009 Nov 30th, 2007
Codename Callisto Yorkfield
Generation Phenom II X2 Core 2 Extreme
Part HDXB55WFK2DGM SLAN3
Memory support DDR3 Dual-channel DDR1, DDR2, DDR3 Dual-channel
ECC memory No No
PCI Express Gen 2 Gen 2

Cores

Total Cores 2 4
Total Threads 2 4
SMP # CPUs 1 1
Integrated graphics

Cache

Cache L1 128K (per core) 64K (per core)
Cache L2 512K (per core) 12MB (shared)
Cache L3 6MB (shared)

Notes

Notes AMD Business Class processor, availability guaranteed for 24 months after release. This processor comes with an unlocked FSB multiplier, allowing users to set the multiplier value higher than shipped value, to facilitate better overclocking. It is branded under the Extreme Edition label. Also available with C1 Stepping, Part #: SLAWN, R

Features & Technologies

3DNow! Yes
AMD-V Yes
AMD64 Yes
EIST Yes
Intel 64 Yes
MMX Yes Yes
NX bit Yes
SSE Yes Yes
SSE2 Yes Yes
SSE3 Yes Yes
SSE4.1 Yes
SSE4A Yes
SSSE3 Yes
VT-x Yes

Compare

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