Intel Core 2 Extreme QX6850 vs Intel Core 2 Extreme QX9650

Physical Specifications

Socket Intel Socket 775 Intel Socket 775
Foundry Intel Intel
Process size 65 nm 45 nm
Transistors 582 million 820 million
Die size 2x 143 mm² 2x 107 mm²
Package FC-LGA6 FC-LGA4
tCaseMax 64°C 64°C

Performance

Frequency 3 GHz 3 GHz
Turbo clock
Base clock 333 MHz 333 MHz
Multiplier 9.0x 9.0x
Multiplier unlocked Yes Yes
Voltage 1.34 V 1.25 V
TDP 130 W 130 W

Architecture Details

Vertical Segment Desktop Desktop
Production status End-of-life End-of-life
Release date Jul 15th, 2007 Nov 30th, 2007
Codename Kentsfield Yorkfield
Generation Core 2 Extreme Core 2 Extreme
Part SLAFN SLAN3
Memory support DDR1, DDR2, DDR3 Dual-channel DDR1, DDR2, DDR3 Dual-channel
ECC memory No No
PCI Express Gen 2 Gen 2

Cores

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

Cache

Cache L1 64K (per core) 64K (per core)
Cache L2 8MB (shared) 12MB (shared)

Notes

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. 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

EIST Yes Yes
Intel 64 Yes Yes
MMX Yes Yes
SSE Yes Yes
SSE2 Yes Yes
SSE3 Yes Yes
SSE4.1 Yes
SSSE3 Yes
VT-x Yes Yes
iAMT2 Yes

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