Athlon X4 850 vs Core 2 Quad Q9400

Aggregate performance score

Core 2 Quad Q9400
2008
4 cores / 4 threads, 95 Watt
1.35
Athlon X4 850
2015
4 cores / 4 threads, 65 Watt
2.12
+57%

Athlon X4 850 outperforms Core 2 Quad Q9400 by an impressive 57% based on our aggregate benchmark results.

Primary details

Comparing Core 2 Quad Q9400 and Athlon X4 850 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking22561878
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorDesktop processor
Power efficiency1.343.08
Architecture codenameYorkfield (2007−2009)Godaveri (2014−2016)
Release dateAugust 2008 (16 years ago)July 2015 (9 years ago)

Detailed specifications

Core 2 Quad Q9400 and Athlon X4 850 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores4 (Quad-Core)4 (Quad-Core)
Threads44
Base clock speed2.66 GHz3.2 GHz
Boost clock speed2.67 GHz3.9 GHz
Bus rate1333 MHzno data
L1 cache64K (per core)256K
L2 cache6 MB (shared)4 MB
L3 cache0 KBno data
Chip lithography45 nm28 nm
Die size2x 81 mm2245 mm2
Maximum case temperature (TCase)71 °Cno data
Number of transistors456 million2,411 million
64 bit support++
Windows 11 compatibility-no data
Unlocked multiplier-+
VID voltage range0.85V-1.3625Vno data

Compatibility

Information on Core 2 Quad Q9400 and Athlon X4 850 compatibility with other computer components: 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 configuration11
SocketLGA775FM2+
Power consumption (TDP)95 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Quad Q9400 and Athlon X4 850. You'll probably need this information if you require some particular technology.

AES-NI-+
FMA-+
AVX-+
Enhanced SpeedStep (EIST)+no data
Turbo Boost Technology-no data
Hyper-Threading Technology-no data
Idle States+no data
Thermal Monitoring+-
Demand Based Switching-no data
FSB parity-no data

Security technologies

Core 2 Quad Q9400 and Athlon X4 850 technologies aimed at improving security, for example, by protecting against hacks.

TXT+no data
EDB+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Quad Q9400 and Athlon X4 850 are enumerated here.

AMD-V-+
VT-d+no data
VT-x+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q9400 and Athlon X4 850. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1, DDR2, DDR3DDR3-2133

Peripherals

Specifications and connection of peripherals supported by Core 2 Quad Q9400 and Athlon X4 850.

PCIe versionno data3.0
PCI Express lanesno data16

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark 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 1.35
Athlon X4 850 2.12
+57%

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.

Core 2 Quad Q9400 2138
Athlon X4 850 3366
+57.4%

Gaming performance

Pros & cons summary


Performance score 1.35 2.12
Chip lithography 45 nm 28 nm
Power consumption (TDP) 95 Watt 65 Watt

Athlon X4 850 has a 57% higher aggregate performance score, a 60.7% more advanced lithography process, and 46.2% lower power consumption.

The Athlon X4 850 is our recommended choice as it beats the Core 2 Quad Q9400 in performance tests.


Should you still have questions on choice between Core 2 Quad Q9400 and Athlon X4 850, ask them in Comments section, and we shall answer.

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Intel Core 2 Quad Q9400
Core 2 Quad Q9400
AMD Athlon X4 850
Athlon X4 850

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


4.3 1573 votes

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Questions & comments

Here you can ask a question about Core 2 Quad Q9400 or Athlon X4 850, agree or disagree with our judgements, or report an error or mismatch.