Intel Celeron E3400 vs Intel Core 2 Extreme QX9770

Physical Specifications

Socket Intel Socket 775 Intel Socket 775
Foundry Intel Intel
Process size 45 nm 45 nm
Transistors 228 million 820 million
Die size 82 mm² 2x 107 mm²
Package FC-LGA6 FC-LGA4
tCaseMax 55°C


Frequency 2.6 GHz 3.2 GHz
Turbo clock
Base clock 800 MHz 400 MHz
Multiplier 13.0x 8.0x
Multiplier unlocked No Yes
Voltage 1.3625 V 1.35 V
TDP 65 W 136 W

Architecture Details

Vertical Segment Desktop Desktop
Production status End-of-life End-of-life
Release date Jan 17th, 2010 Mar 24th, 2008
Codename Wolfdale Yorkfield
Generation Celeron Core 2 Extreme
Memory support DDR1, DDR2, DDR3 Dual-channel DDR1, DDR2, DDR3 Dual-channel
ECC memory No No
PCI Express Gen 2 Gen 2


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


Cache L1 64K (per core) 64K (per core)
Cache L2 1MB (shared) 12MB (shared)

Features & Technologies

EIST Yes Yes
Intel 64 Yes Yes
MMX Yes Yes
SSE Yes Yes
SSE2 Yes Yes
SSE3 Yes Yes
SSE4.1 Yes
SSSE3 Yes Yes
VT-x Yes Yes
XD bit Yes


Notes 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.


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