Intel Core 2 Quad Q9400: specs and benchmarks

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Intel Core 2 Quad Q9400
Intel Core 2 Quad Q9400
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  • Interface
  • Core clock speed
  • Max video memory
  • Memory type
  • Memory clock speed
  • Maximum resolution
Year of release 2008
Performance 2.06

Summary

Intel started Intel Core 2 Quad Q9400 sales on August 2008. This is Yorkfield architecture desktop processor primarily aimed at office systems. It has 4 cores and 4 threads, and is based on 45 nm manufacturing technology, with a maximum frequency of 2666 MHz and a locked multiplier.

Compatibility-wise, this is LGA775 processor with a TDP of 95 Watt and a maximum temperature of 71 °C. It supports DDR1, DDR2, DDR3 memory.

It provides poor benchmark performance at

2.06%

of a leader's which is AMD EPYC 7H12.

General info

Of Core 2 Quad Q9400 processor market type (desktop or notebook), architecture, sales start time and pricing.

Place in performance rating1876
Value for money3.51
Market segmentDesktop processor
Architecture codenameYorkfield (2007−2009)
Release dateAugust 2008 (14 years ago)
Current price$50 of 14999 (Xeon Platinum 9282)
Value for money

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Technical specs

Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.

Physical cores4 (Quad-Core)
Threads4
Base clock speed2.66 GHzof 4.7 (FX-9590)
Boost clock speed2.67 GHzof 5.5 (Core i9-12900KS)
L1 cache64K (per core)of 1536 (EPYC Embedded 3401)
L2 cache6 MB (shared)of 12 (Core 2 Quad Q9550)
L3 cache0 KBof 32768 (Ryzen Threadripper 1998)
Chip lithography45 nmof 5 (Apple M1)
Die size2x 81 mm2
Maximum core temperature71 °Cof 110 (Atom x7-E3950)
Maximum case temperature (TCase)71 °Cof 105 (Core i7-5950HQ)
Number of transistors456 millionof 57000 (Apple M1 Max)
64 bit support+
Windows 11 compatibility-
Unlocked multiplier-
VID voltage range0.85V-1.3625V

Compatibility

Information on Core 2 Quad Q9400 compatibility with other computer components and devices: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration1of 8 (Opteron 842)
SocketLGA775
Thermal design power (TDP)95 Wattof 400 (Xeon Platinum 9282)

Technologies and extensions

Technological capabilities and additional instructions supported by Core 2 Quad Q9400. You'll probably need this information if you require some particular technology.

AES-NI-
Enhanced SpeedStep (EIST)+
Enhanced SpeedStep (EIST)+
Turbo Boost Technology-
Hyper-Threading Technology-
Idle States+
Thermal Monitoring+
Demand Based Switching-
FSB parity-

Security technologies

Processor technologies aimed at improving security, for example, by protecting against hacks.

TXT+
EDB+

Virtualization technologies

Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.

VT-d+
VT-x+

Memory specs

Types, maximum amount and channel number of RAM supported by Core 2 Quad Q9400's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory typesDDR1, DDR2, DDR3of 4800 (Ryzen 9 6980HX)

Benchmark performance

Single-core and multi-core benchmark results of Core 2 Quad Q9400. Overall benchmark performance is measured in points in 0-100 range, higher is better.


Overall score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Core 2 Quad Q9400 2.06
  • Passmark
  • GeekBench 5 Single-Core
  • GeekBench 5 Multi-Core
  • 3DMark Fire Strike Physics

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Benchmark coverage: 68%

Core 2 Quad Q9400 2073

GeekBench 5 Single-Core

Benchmark coverage: 37%

Core 2 Quad Q9400 375

GeekBench 5 Multi-Core

Benchmark coverage: 37%

Core 2 Quad Q9400 1186

3DMark Fire Strike Physics

Benchmark coverage: 4%

Core 2 Quad Q9400 4280

Game benchmarks

Relative perfomance

Overall Core 2 Quad Q9400 performance compared to nearest competitors among desktop CPUs.


AMD equivalent

We believe that the nearest equivalent to Core 2 Quad Q9400 from AMD is Athlon II X4 631, which is nearly equal in speed and higher by 4 positions in our rating.

AMD Athlon II X4 631 Athlon II X4 631
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Here are some closest AMD rivals to Core 2 Quad Q9400:

Similar processors

Here is our recommendation of several processors that are more or less close in performance to the one reviewed.

Intel Core 2 Quad Q6700 Core 2 Quad Q6700
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AMD Phenom II X4 830 Phenom II X4 830
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AMD Phenom II X4 910e Phenom II X4 910e
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AMD Phenom II X4 B93 Phenom II X4 B93
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AMD Athlon II X4 630 Athlon II X4 630
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AMD Athlon II X4 635 Athlon II X4 635
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Recommended graphics cards

These graphics cards are most commonly used with Core 2 Quad Q9400 according to our statistics.

User rating

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4.5 756 ratings

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Questions and comments

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