Intel Core 2 Quad Q9400 vs Intel Core 2 Quad Q9400s

Last updated:

CPU comparison with benchmarks


Intel Core 2 Quad Q9400 CPU1 vs CPU2 Intel Core 2 Quad Q9400s
Intel Core 2 Quad Q9400 Intel Core 2 Quad Q9400s

CPU comparison

Intel Core 2 Quad Q9400 or Intel Core 2 Quad Q9400s - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The Intel Core 2 Quad Q9400 has 4 cores with 4 threads and clocks with a maximum frequency of 2.66 GHz. Up to 16 GB of memory is supported in 2 memory channels. The Intel Core 2 Quad Q9400 was released in Q3/2008.

The Intel Core 2 Quad Q9400s has 4 cores with 4 threads and clocks with a maximum frequency of 2.66 GHz. The CPU supports up to 16 GB of memory in 2 memory channels. The Intel Core 2 Quad Q9400s was released in Q1/2009.
Intel Core2 Quad (19) Family Intel Core2 Quad (19)
Intel Core 2 Quad Q8000/Q9000 (16) CPU group Intel Core 2 Quad Q8000/Q9000 (16)
2 Generation 2
Yorkfield (Penryn) Architecture Yorkfield (Penryn)
Desktop / Server Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Core 2 Quad Q9400 has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the Intel Core 2 Quad Q9400 is 2.66 GHz while the Intel Core 2 Quad Q9400s has 4 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the Intel Core 2 Quad Q9400s is at 2.66 GHz.

Intel Core 2 Quad Q9400 Characteristic Intel Core 2 Quad Q9400s
4 Cores 4
4 Threads 4
normal Core architecture normal
No Hyperthreading No
No Overclocking ? No
2.66 GHz Frequency 2.66 GHz
-- Turbo Frequency (1 Core) --
-- Turbo Frequency (All Cores) --

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

Intel Core 2 Quad Q9400 Characteristic Intel Core 2 Quad Q9400s
-- AI hardware --
-- AI specifications --

Internal Graphics

The Intel Core 2 Quad Q9400 or Intel Core 2 Quad Q9400s has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.

no iGPU GPU no iGPU
GPU frequency --
-- GPU (Turbo) --
-- GPU Generation --
Technology
Max. displays
-- Compute units --
-- Shader --
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory --
-- DirectX Version --

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.

no iGPU GPU no iGPU
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
No Codec h264 No
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
No Codec AVC No
No Codec VC-1 No
No Codec JPEG No

Memory & PCIe

The Intel Core 2 Quad Q9400 can use up to 16 GB of memory in 2 memory channels. The maximum memory bandwidth is 12.8 GB/s. The Intel Core 2 Quad Q9400s supports up to 16 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 12.8 GB/s.

Intel Core 2 Quad Q9400 Characteristic Intel Core 2 Quad Q9400s
DDR3-1066, DDR2-800 Memory DDR3-1066, DDR2-800
16 GB Max. Memory 16 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
12.8 GB/s Max. Bandwidth 12.8 GB/s
No ECC No
6.00 MB L2 Cache 6.00 MB
-- L3 Cache --
-- PCIe version --
-- PCIe lanes --
-- PCIe Bandwidth --

Thermal Management

The thermal design power (TDP for short) of the Intel Core 2 Quad Q9400 is 95 W, while the Intel Core 2 Quad Q9400s has a TDP of 65 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

Intel Core 2 Quad Q9400 Characteristic Intel Core 2 Quad Q9400s
95 W TDP (PL1 / PBP) 65 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The Intel Core 2 Quad Q9400 is manufactured in 45 nm and has 6.00 MB cache. The Intel Core 2 Quad Q9400s is manufactured in 45 nm and has a 6.00 MB cache.

Intel Core 2 Quad Q9400 Characteristic Intel Core 2 Quad Q9400s
45 nm Technology 45 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
MMX, SSE2, SSE3, SSE4.1 ISA extensions MMX, SSE2, SSE3, SSE4.1
LGA 775 Socket LGA 775
VT-x, VT-d Virtualization VT-x, VT-d
No AES-NI No
Windows 10, Linux Operating systems Windows 10, Linux
Q3/2008 Release date Q1/2009
-- Release price --
show more data show more data


Rate these processors

Here you can rate the Intel Core 2 Quad Q9400 to help other visitors make their purchasing decisions. The average rating is 3.7 stars (3 ratings). Rate now:
Here you can rate the Intel Core 2 Quad Q9400s to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:


Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core 2 Quad Q9400 Intel Core 2 Quad Q9400
4C 4T @ 2.66 GHz
378 (100%)
Intel Core 2 Quad Q9400s Intel Core 2 Quad Q9400s
4C 4T @ 2.66 GHz
0 (0%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core 2 Quad Q9400 Intel Core 2 Quad Q9400
4C 4T @ 2.66 GHz
1163 (100%)
Intel Core 2 Quad Q9400s Intel Core 2 Quad Q9400s
4C 4T @ 2.66 GHz
0 (0%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
Intel Core 2 Quad Q9400 Intel Core 2 Quad Q9400
4C 4T @ 2.66 GHz
2061 (100%)
Intel Core 2 Quad Q9400s Intel Core 2 Quad Q9400s
4C 4T @ 2.66 GHz
0 (0%)

CPU-Z Benchmark 17 (Single-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
Intel Core 2 Quad Q9400 Intel Core 2 Quad Q9400
4C 4T @ 2.66 GHz
230 (100%)
Intel Core 2 Quad Q9400s Intel Core 2 Quad Q9400s
4C 4T @ 2.66 GHz
0 (0%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
Intel Core 2 Quad Q9400 Intel Core 2 Quad Q9400
4C 4T @ 2.66 GHz
891 (100%)
Intel Core 2 Quad Q9400s Intel Core 2 Quad Q9400s
4C 4T @ 2.66 GHz
0 (0%)

Devices using this processor

Intel Core 2 Quad Q9400 Intel Core 2 Quad Q9400s
Unknown Unknown

Popular comparisons containing this CPUs

1. Intel Core 2 Quad Q6600Intel Core 2 Quad Q9400 Intel Core 2 Quad Q6600 vs Intel Core 2 Quad Q9400
2. Intel Core 2 Quad Q8400Intel Core 2 Quad Q9400 Intel Core 2 Quad Q8400 vs Intel Core 2 Quad Q9400
3. Intel Core 2 Quad Q9400Intel Core 2 Quad Q9500 Intel Core 2 Quad Q9400 vs Intel Core 2 Quad Q9500
4. Intel Core2 Duo E8500Intel Core 2 Quad Q9400 Intel Core2 Duo E8500 vs Intel Core 2 Quad Q9400
5. Intel Core 2 Quad Q9650Intel Core 2 Quad Q9400 Intel Core 2 Quad Q9650 vs Intel Core 2 Quad Q9400
6. Intel Core 2 Quad Q9400Intel Pentium E5700 Intel Core 2 Quad Q9400 vs Intel Pentium E5700
7. Intel Core 2 Quad Q9550Intel Core 2 Quad Q9400 Intel Core 2 Quad Q9550 vs Intel Core 2 Quad Q9400
8. Intel Core2 Duo E7500Intel Core 2 Quad Q9400 Intel Core2 Duo E7500 vs Intel Core 2 Quad Q9400
9. Intel Core 2 Quad Q6700Intel Core 2 Quad Q9400 Intel Core 2 Quad Q6700 vs Intel Core 2 Quad Q9400
10. Intel Core 2 Quad Q9400Intel Core 2 Quad Q8200 Intel Core 2 Quad Q9400 vs Intel Core 2 Quad Q8200


back to index