Intel Core2 Quad Q9400 @ 2.66GHz

Benchmarks for the Intel Core2 Quad Q9400 can be found below. Release dates, price and performance comparisons are also listed when available. This is made using thousands of PerformanceTest benchmark results and is updated daily.

The first graph shows the relative performance of the CPU compared to the 10 other common (single) CPUs in terms of PassMark CPU Mark.
The 2nd graph shows the value for money, in terms of the CPUMark per dollar.
The pricing history data shows the price for a single Processor. For multiple Processors, multiply the price shown by the number of CPUs.

Is the Intel Core2 Quad Q9400 @ 2.66GHz Good for Gaming?

This is a fairly old CPU that is no longer competitive with newer CPUs. [More ...]

Compare List
Add other CPU:

Intel Core2 Quad Q9400 @ 2.66GHz

Description:

Class: Desktop

Socket: LGA775

Clockspeed: 2.7 GHz

Cores: 4 Threads: 4

Typical TDP: 95 W

Cache per CPU Package:
L1 Instruction Cache: 4 x 32 KB
L1 Data Cache: 4 x 32 KB
L2 Cache: 2 x 3072 KB

Other names: Intel(R) Core(TM)2 Quad CPU Q9400 @ 2.66GHz, Intel(R) Core(TM)2 Quad CPU Q9400 @ 2.66GHz, Intel Core2 Quad CPU Q9400 @ 2.66GHz

CPU First Seen on Charts: Q4 2008

CPUmark/$Price: 86.00

Overall Rank:
3242nd fastest in multithreading out of 5268 CPUs
3217th fastest in single threading out of 5268 CPUs
928th fastest in out of 1451 Desktop CPUs

Last Price Change: $25.05 USD (2024-10-03)

Average CPU Mark rating

Multithread Rating

2154

Single Thread Rating

1139

Samples: 2531*
*Margin for error: Low

PerformanceTest V9
CPU Mark: 3,157
Thread: 1,114

CPU Test Suite Average Results for Intel Core2 Quad Q9400 @ 2.66GHz

Integer Math	10,163 MOps/Sec
Floating Point Math	5,645 MOps/Sec
Find Prime Numbers	10 Million Primes/Sec
Random String Sorting	6,137 Thousand Strings/Sec
Data Encryption	560.4 MBytes/Sec
Data Compression	46,535 KBytes/Sec
Physics	165 Frames/Sec
Extended Instructions	826 Million Matrices/Sec
Single Thread	1,139 MOps/Sec

From submitted results to PerformanceTest V10 as of 11th of July 2025.

CPU Mark Distribution for Intel Core2 Quad Q9400 @ 2.66GHz

Submitted Baseline Distribution Graph as of 9th of July 2025

From submitted results since PerformanceTest V10 as of 9th of July 2025.
For distribution graph only: Results are trimmed to exclude outliers by disregarding the bottom 1% and top 1% of submissions.

Search for Intel Core2 Quad Q9400 @ 2.66GHz
from the Featured Merchants below:

Note: PassMark Software may earn compensation for sales from links on this site through affiliate programs.

Pricing History

CPU Mark Relative to Top 10 Common Desktop CPUs
As of 11th of July 2025 - Higher results represent better performance
Processor	Average CPU Mark
Intel Core i9-13900K		58,630
AMD Ryzen 9 5900X		39,011
Intel Core i7-12700K		34,437
Apple M1 Max 10 Core 3200 MHz		22,146
AMD Ryzen 5 5600X		21,859
Intel Core i5-12400F		19,491
Intel Core i9-9900K @ 3.60GHz		18,159
AMD Ryzen 5 3600		17,702
Apple M2 8 Core 3500 MHz		15,654
Apple M1 8 Core 3200 MHz		14,147
Intel Core2 Quad Q9400 @ 2.66GHz		2,154

CPU Value (CPU Mark / $Price )
As of 11th of July 2025 - Higher results represent better value
Processor	CPU Mark / $Price
AMD Ryzen 5 3600		228.15
Intel Core i9-13900K		173.47
Intel Core i5-12400F		168.97
AMD Ryzen 9 5900X		151.27
AMD Ryzen 5 5600X		136.62
Intel Core2 Quad Q9400 @ 2.66GHz		86.00
Intel Core i7-12700K		84.20
Intel Core i9-9900K @ 3.60GHz		49.35
Apple M1 8 Core 3200 MHz		NA
Apple M2 8 Core 3500 MHz		NA
Apple M1 Max 10 Core 3200 MHz		NA

Single Thread Rating
As of 11th of July 2025 - Higher results represent better performance
Processor	Average Thread Rating
Intel Core i9-13900K		4,610
Intel Core i7-12700K		4,014
Apple M2 8 Core 3500 MHz		3,899
Apple M1 Max 10 Core 3200 MHz		3,836
Apple M1 8 Core 3200 MHz		3,680
Intel Core i5-12400F		3,477
AMD Ryzen 9 5900X		3,469
AMD Ryzen 5 5600X		3,364
Intel Core i9-9900K @ 3.60GHz		2,920
AMD Ryzen 5 3600		2,563
Intel Core2 Quad Q9400 @ 2.66GHz		1,139

Last 5 Baselines for Intel Core2 Quad Q9400 @ 2.66GHz
Most recent listed first
Baseline	CPU Mark
BL2731662 - Jun 30 2025		3112
BL2705522 - Jun 18 2025		2362
BL2689566 - Jun 11 2025		2780
BL2680932 - Jun 08 2025		2266
BL2680896 - Jun 07 2025		2334

Additional baselines can be obtained using Windows version of PerformanceTest's Manage Baselines feature.

Popular comparisons for Intel Core2 Quad Q9400 @ 2.66GHz
As of 11th of July 2025 - Higher results represent better performance
Processor	Average CPU Mark
Intel Core2 Quad Q9400 @ 2.66GHz		2,154
AMD Phenom II X4 925 vs Intel Core2 Quad Q9400		2,254 (+4.6%)
AMD Phenom II X4 920 vs Intel Core2 Quad Q9400		2,181 (+1.3%)
AMD Phenom 9550 Quad-Core vs Intel Core2 Quad Q9400		1,664 (-22.7%)
AMD Phenom II X4 830 vs Intel Core2 Quad Q9400		2,072 (-3.8%)
AMD Athlon II X4 600e vs Intel Core2 Quad Q9400		1,795 (-16.7%)
AMD Phenom II X4 955 vs Intel Core2 Quad Q9400		2,537 (+17.8%)
AMD Phenom II X4 840 vs Intel Core2 Quad Q9400		2,435 (+13.0%)
AMD Phenom II X4 945 vs Intel Core2 Quad Q9400		2,414 (+12.1%)
AMD Athlon II X3 450 vs Intel Core2 Quad Q9400		1,872 (-13.1%)
AMD A6-3620 APU vs Intel Core2 Quad Q9400		1,869 (-13.3%)
AMD Athlon II X3 445 vs Intel Core2 Quad Q9400		1,804 (-16.2%)
AMD A6-3600 APU vs Intel Core2 Quad Q9400		1,697 (-21.2%)

Is the Intel Core2 Quad Q9400 @ 2.66GHz Good for Gaming?
As of 11th of July 2025 - Higher results represent better performance
Processor	Relative Gaming Score
AMD Ryzen 9 9900X3D		12,433
AMD Ryzen 7 9800X3D		12,145
AMD Ryzen 9 9950X3D		11,284
AMD Ryzen 9 7900X3D		10,836
Intel Core Ultra 9 285K		10,574
AMD Ryzen 5 7600X3D		10,480
AMD Ryzen 7 7800X3D		10,276
AMD Ryzen 9 9955HX3D		9,909
AMD Ryzen 9 7950X3D		9,800
Intel Core Ultra 5 245K		9,637
Intel Core Ultra 7 265K		9,529
Intel Core Ultra 9 285		9,450
Intel Core2 Quad Q9400 @ 2.66GHz		164

CPU Benchmarks

CPU Benchmarks

Intel Core2 Quad Q9400 @ 2.66GHz

Add CPUs to start comparisons

CPU Test Suite Average Results for Intel Core2 Quad Q9400 @ 2.66GHz

CPU Mark Distribution for Intel Core2 Quad Q9400 @ 2.66GHz

Pricing History