Release period
10-Aug-2008

Core 2 Quad Q9400 2.66GHz Review

Core 2 Quad processors are multi-chip modules consisting of two dies similar to those used in Core 2 Duo, forming a quad-core processor. While this allows twice the performance to a dual-core processors at the same clock frequency in ideal conditions, this is highly workload specific and requires applications to take advantage of the extra cores. Also, high-end Core 2 Duo processors often operate at higher clock frequencies, so the performance for single-thread workloads would be worse on a Core 2 Quad.
Initially, all Core 2 Quad models were versions of Core 2 Duo desktop processors, Kentsfield derived from Conroe and Yorkfield from Wolfdale, but later Penryn-QC was added as a high-end version of the mobile dual-core Penryn.
Source [Wikipedia]
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Core 2 Quad Q9400 2.66GHz Performance Specification

CPU Speed

CPU Cores

CPU Codename

TDP (Power)

Lithography

CPU socket

Main Link

CPU Details

2.66 GHz

4 cores

Yorkfield

95W

45nm

LGA 775/ Socket T

Link

Notebook CPU

L1 Cache

L2 Cache

L3 Cache

Approved

GD RATING

CPU Features

No the Core 2 Quad Q9400 2.66GHz processor is NOT a laptop and notebook CPU

256Kb

6144Kb

Yes, the Core 2 Quad Q9400 2.66GHz processor has been approved by GD Admin. Always use GD data as a guideline.

Game-Debate Hardware Rating A standardised score that can be used to compare game system requirements directly with individual hardware components. Each score will adjust over time as better tech is released.

Avg. User ScoreGD Rating

8.6

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Core 2 Quad Q9400 2.66GHz Weblinks

GD Tags: Intel Core 2 Quad Q9400 2.66GHz Core 2 Quad, Intel Core 2 Quad Q9400 2.66GHz Core 2 Quad, IntelCore2QuadQ94002.66GHzCore2Quad

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Discussion Page 1

gerulis20

06:24 Apr-29-2013

gerulis20's Rig
Saved at: May-21-2013

Compared to your Rig

CPU

Core 2 Quad Q9400 2.66GHz

GFX

Radeon HD 7750 Sapphire 2GB DDR3 Edition

RAM

4GB DDR3 1333MHz

RES

1280 x 1024
width x height

Phone

Nokia C5-03

GD Reputation
gerulis20 has started to build a good reputation on GD
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hey folks,
What best gfx would be for this cpu without bottleneck maybe i littlebit?

Naveen2195

07:01 Apr-29-2013

Naveen2195's Rig
Saved at: May-22-2013

Compared to your Rig

CPU

Pentium Dual Core E5700 3GHz

GFX

Radeon HD 7750 Asus 1GB Edition

RAM

4GB DDR3 1333MHz

RES

1440 x 900
width x height

Phone

HTC Explorer

111

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hd 7750 or gtx 650

KRUSHANA

07:08 Apr-29-2013

KRUSHANA's Rig
Saved at: May-22-2013

Compared to your Rig

CPU

Phenom II X4 B45

GFX

GeForce GTX 550 Ti

RAM

4GB DDR3 2300MHz

RES

1600 x 900
width x height

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Hd 7770 is best :)

gerulis20

07:54 Apr-29-2013

gerulis20's Rig
Saved at: May-21-2013

Compared to your Rig

CPU

Core 2 Quad Q9400 2.66GHz

GFX

Radeon HD 7750 Sapphire 2GB DDR3 Edition

RAM

4GB DDR3 1333MHz

RES

1280 x 1024
width x height

Phone

Nokia C5-03

GD Reputation
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Thanks, wasnt sure about my choise about gfx:) but failed with buying ddr3 version:(

WorryBear

18:19 Apr-30-2013

WorryBear's Rig
Saved at: May-23-2013

Compared to your Rig

CPU

Core i5-3570K 3.4GHz

GFX

GeForce GTX 660

RAM

8GB DDR3 1600MHz

RES

1440 x 900
width x height

Phone

Sony Xperia ZL

GD Admin Approved: WorryBear is a Made-man and trusted by the GD Admin team

126

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This CPU can eaisily match up to GTX 560 :)

sairiz93

04:48 Dec-17-2012

sairiz93's Rig
Saved at: May-22-2013

Compared to your Rig

CPU

APU A6-3670K Quad Core oc: 10%

GFX

Radeon HD 6670 Sapphire 1GB GDDR5 oc: 10%

RAM

4GB DDR3 1600MHz

RES

1366 x 768
width x height

Phone

Nokia C3-01

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my a6-3670k 1% power than this cpu ..

Mark

18:34 Oct-20-2011

Mark's Rig
Saved at: May-23-2013

Compared to your Rig

CPU

Core 2 Duo E8400 3.0GHz

GFX

Radeon HD 5670 512MB

RAM

3GB DDR2 667MHz

RES

1440 x 900
width x height

Phone

Samsung Galaxy Y

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287

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CS: 3,1 GHz 2,66 GHz --> i3 wins....

512kB L2 cache 6MB L2 cache --> looking per core: the i3 slightly wins...

Mark

18:33 Oct-20-2011

Mark's Rig
Saved at: May-23-2013

Compared to your Rig

CPU

Core 2 Duo E8400 3.0GHz

GFX

Radeon HD 5670 512MB

RAM

3GB DDR2 667MHz

RES

1440 x 900
width x height

Phone

Samsung Galaxy Y

287

GD Reputation
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GD says that the i3-2100 is 2% better than the Q9400, I think following:

i3: C2Q:

Sandy Bridge (processor core) Yorkfield --> Sandy Bridge is a much better processor core, much more efficient and is based on 32nm technology, so it will keep its performance better when "stressed". Talking about the "K" models, you will be able to do great overclocks :)

rabihdon12

17:40 Oct-20-2011

rabihdon12's Rig
Saved at: Jan-02-2012

Compared to your Rig

CPU

Core i3-2100 3.1GHz

GFX

Radeon HD 6870 x2

RAM

8GB DDR3 1333MHz

RES

1920 x 1080
width x height