Intel Core2 QX6850 

Released July, 2007
  • 3 GHz
  • Quad core
  • Unlocked

It's stupidly expensive but great.
by Tech Radar (Aug, 2007)
Meanwhile, price drops have occurred on a regular basis as well.
by PCMag (Jul, 2007)

Benchmarks Real world tests of the Intel Core2 QX6850

Cinebench R11.5

Core2 QX6850

Cinebench R11.5 (Single Core)

Core2 QX6850

Reviews Word on the street for the Intel Core2 QX6850

Bumping up quad-core to the new 1333MHz FSB in the Core 2 Extreme QX6850 seems to boost performance, even with DDR2 memory; the price, though high, now seems rational.

The secret is the new G0 stepping, which increases frequency potential, reduces power consumption and improves heat dissipation.


8.3 Out of 10

What People Are Saying Give it to me straight

Socket Type

Today, we'll take a look at the new high-end Intel CPU, the Core 2 Extreme QX6850, which now logically fits into Intel's product line, unlike the earlier QX6800, which seemed to be an outlier in more ways than its lack of DDR3 support.
by PCMag (Jul, 2007)
Ever since launching its Core 2 microprocessors in July, 2006, the Santa Clara company has maintained a steady pace, with new Core 2 introductions occurring every few months.
by PCMag (Jul, 2007)
It's still the Kentsfield core, but an FSB raised to 1333MHz bumps the clock to 3GHz.
by Tech Radar (Aug, 2007)


Fastest desktop quad-core CPU you can buy today.
by PCMag (Jul, 2007)


The crazy nitrogen-cooling contingent have already taken this chip past 5GHz.
by Tech Radar (Aug, 2007)


Some apps see little gain.
by PCMag (Jul, 2007)

Specifications Full list of technical specs


Clock speed 3 GHz
Cores Quad core
Socket type LGA 775
Is unlocked Yes


Has a NX bit Yes
Supports trusted computing No
Has virtualization support Yes
Instruction set extensions
  1. MMX
  2. SSE
  3. SSE2
  4. SSE3
  5. Supplemental SSE3
Supports dynamic frequency scaling Yes

power consumption

TDP 130W
Annual home energy cost 31.32 $/year
Annual commercial energy cost 113.88 $/year
Typical power consumption 105.63W


Architecture FSB
Clock speed 1,333 MHz


Architecture x86-64
Threads 4 threads
L2 cache 8 MB
L2 cache per core 2 MB/core
Manufacture process 65 nm
Transistor count 582,000,000
Max CPUs 1
Clock multiplier 9
Voltage range 0.85 - 1.5V
Operating temperature Unknown - 64.5°C


Overclocked clock speed 4.02 GHz
Overclocked clock speed (Water) 3.86 GHz
Overclocked clock speed (Air) 4.02 GHz

integrated graphics

GPU None
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