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 ...]

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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: 86.22

Overall Rank:
3412th fastest in multithreading out of 5478 CPUs
3377th fastest in single threading out of 5478 CPUs
959th fastest in out of 1484 Desktop CPUs

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

Average CPU Mark rating

Multithread Rating

2160

Single Thread Rating

1140

Samples: 2556*
*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	10,179 MOps/Sec
Floating Point Math	5,652 MOps/Sec
Find Prime Numbers	10 Million Primes/Sec
Random String Sorting	6,135 Thousand Strings/Sec
Data Encryption	562.3 MBytes/Sec
Data Compression	46,553 KBytes/Sec
Physics	165 Frames/Sec
Extended Instructions	829 Million Matrices/Sec
Single Thread	1,140 MOps/Sec

From submitted results to PerformanceTest V10 as of 6th of December 2025.

CPU Mark Distribution for Intel Core2 Quad Q9400 @ 2.66GHz

Submitted Baseline Distribution Graph as of 3rd of December 2025

From submitted results since PerformanceTest V10 as of 3rd of December 2025.
For distribution graph only: Results are trimmed to exclude outliers by disregarding the bottom 1% and top 1% of submissions.

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Pricing History

CPU Mark Relative to Top 10 Common Desktop CPUs
As of 6th of December 2025 - Higher results represent better performance
Processor	Average CPU Mark
Intel Core i9-14900K		58,544
Intel Core i9-13900K		58,362
AMD Ryzen 9 5900X		38,953
Apple M1 Max 10 Core 3200 MHz		22,146
AMD Ryzen 5 5600X		21,845
Intel Core i5-12400F		19,540
Intel Core i9-9900K @ 3.60GHz		18,110
AMD Ryzen 5 3600		17,685
Apple M2 8 Core 3500 MHz		15,653
Apple M1 8 Core 3200 MHz		14,145
Intel Core2 Quad Q9400 @ 2.66GHz		2,160

CPU Value (CPU Mark / $Price )
As of 6th of December 2025 - Higher results represent better value
Processor	CPU Mark / $Price
AMD Ryzen 5 3600		263.99
AMD Ryzen 9 5900X		189.63
AMD Ryzen 5 5600X		159.58
Intel Core i9-14900K		133.36
Intel Core i5-12400F		112.53
Intel Core i9-13900K		106.11
Intel Core2 Quad Q9400 @ 2.66GHz		86.22
Intel Core i9-9900K @ 3.60GHz		53.74
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 6th of December 2025 - Higher results represent better performance
Processor	Average Thread Rating
Intel Core i9-14900K		4,696
Intel Core i9-13900K		4,601
Apple M2 8 Core 3500 MHz		3,890
Apple M1 Max 10 Core 3200 MHz		3,833
Apple M1 8 Core 3200 MHz		3,678
Intel Core i5-12400F		3,487
AMD Ryzen 9 5900X		3,467
AMD Ryzen 5 5600X		3,364
Intel Core i9-9900K @ 3.60GHz		2,915
AMD Ryzen 5 3600		2,561
Intel Core2 Quad Q9400 @ 2.66GHz		1,140

Last 5 Baselines for Intel Core2 Quad Q9400 @ 2.66GHz
Most recent listed first
Baseline	CPU Mark
BL3094955 - Nov 30 2025		1921
BL3044742 - Nov 11 2025		2274
BL3037461 - Nov 08 2025		1836
BL3023352 - Nov 03 2025		2302
BL3012490 - Oct 29 2025		2392

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 6th of December 2025 - Higher results represent better performance
Processor	Average CPU Mark
Intel Core2 Quad Q9400 @ 2.66GHz		2,160
AMD Phenom II X4 925 vs Intel Core2 Quad Q9400		2,261 (+4.7%)
AMD Phenom II X4 920 vs Intel Core2 Quad Q9400		2,202 (+1.9%)
AMD Phenom 9550 Quad-Core vs Intel Core2 Quad Q9400		1,667 (-22.8%)
AMD Athlon II X4 630 vs Intel Core2 Quad Q9400		2,175 (+0.7%)
AMD Phenom II X4 830 vs Intel Core2 Quad Q9400		2,072 (-4.1%)
AMD Athlon II X4 600e vs Intel Core2 Quad Q9400		1,795 (-16.9%)
AMD A8-6500 APU vs Intel Core2 Quad Q9400		2,598 (+20.3%)
AMD Phenom II X4 955 vs Intel Core2 Quad Q9400		2,545 (+17.8%)
AMD Phenom II X4 840 vs Intel Core2 Quad Q9400		2,449 (+13.4%)
AMD Phenom II X4 945 vs Intel Core2 Quad Q9400		2,422 (+12.2%)
AMD A6-3620 APU vs Intel Core2 Quad Q9400		1,877 (-13.1%)
AMD Athlon II X3 445 vs Intel Core2 Quad Q9400		1,807 (-16.3%)

Is the Intel Core2 Quad Q9400 @ 2.66GHz Good for Gaming?
As of 6th of December 2025 - Higher results represent better performance
Processor	Relative Gaming Score
AMD Ryzen 9 9900X3D		12,438
AMD Ryzen 7 9800X3D		12,126
AMD Ryzen 9 9950X3D		11,256
AMD Ryzen 9 7900X3D		10,797
AMD Ryzen 5 7600X3D		10,509
Intel Core Ultra 9 285K		10,453
AMD Ryzen 5 7500X3D		10,308
AMD Ryzen 7 7800X3D		10,270
AMD Ryzen 9 7950X3D		9,777
AMD Ryzen 9 9955HX3D		9,647
Intel Core Ultra 7 265K		9,484
Intel Core Ultra 9 285		9,421
Intel Core2 Quad Q9400 @ 2.66GHz		164

CPU Benchmarks

CPU Benchmarks

Intel Core2 Quad Q9400 @ 2.66GHz

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

CPU Mark Distribution for Intel Core2 Quad Q9400 @ 2.66GHz

Pricing History