Core i7-12700KF vs Core 2 Quad Q9400s

Primary details

Comparing Core 2 Quad Q9400s and Core i7-12700KF processor market type (desktop or notebook), architecture, sales start time and price.

Place in the rankingnot rated247
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data44.05
Market segmentDesktop processorDesktop processor
Seriesno dataIntel Core i7
Power efficiencyno data16.35
Architecture codenameYorkfield (2007−2009)Alder Lake, Golden Cove, Gracemont (2021)
Release date18 January 2009 (15 years ago)27 October 2021 (3 years ago)
Launch price (MSRP)no data$384

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core 2 Quad Q9400s and Core i7-12700KF 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)12 (Dodeca-Core)
Threads420
Base clock speed2.66 GHz3.6 GHz
Boost clock speed0.67 GHz5 GHz
Bus typeno dataDMI 4.0
Bus rate1333 MHz8 × 16 GT/s
Multiplierno data36
L1 cache64 KB (per core)384 KB
L2 cache6 MB (shared)2 MB
L3 cache0 KB1 MB
Chip lithography45 nmIntel 7 nm
Die size2x 82 mm2215.25 mm2
Maximum core temperatureno data100 °C
Maximum case temperature (TCase)76 °C72 °C
Number of transistors456 millionno data
64 bit support++
Windows 11 compatibility-+
Unlocked multiplier-+
VID voltage range0.85V-1.3625Vno data

Compatibility

Information on Core 2 Quad Q9400s and Core i7-12700KF 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
SocketLGA775FCLGA1700
Power consumption (TDP)65 Watt125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Quad Q9400s and Core i7-12700KF. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI-+
AVX-+
vProno data+
Enhanced SpeedStep (EIST)++
Speed Shiftno data+
Turbo Boost Technology-2.0
Hyper-Threading Technology-+
Idle States++
Thermal Monitoring++
Demand Based Switching-no data
Turbo Boost Max 3.0no data+
FSB parity-no data
Deep Learning Boost-+

Security technologies

Core 2 Quad Q9400s and Core i7-12700KF technologies aimed at improving security, for example, by protecting against hacks.

TXT+no data
EDB++
Secure Keyno data+
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Quad Q9400s and Core i7-12700KF are enumerated here.

VT-d++
VT-x++
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q9400s and Core i7-12700KF. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1, DDR2, DDR3DDR5-4800, DDR4-3200
Maximum memory sizeno data128 GB
Max memory channelsno data2
Maximum memory bandwidthno data76.805 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardOn certain motherboards (Chipset feature)no data

Peripherals

Specifications and connection of peripherals supported by Core 2 Quad Q9400s and Core i7-12700KF.

PCIe version2.05.0 and 4.0
PCI Express lanesno data20

Pros & cons summary


Recency 18 January 2009 27 October 2021
Physical cores 4 12
Threads 4 20
Power consumption (TDP) 65 Watt 125 Watt

Core 2 Quad Q9400s has 92.3% lower power consumption.

i7-12700KF, on the other hand, has an age advantage of 12 years, and 200% more physical cores and 400% more threads.

We couldn't decide between Core 2 Quad Q9400s and Core i7-12700KF. We've got no test results to judge.


Should you still have questions on choice between Core 2 Quad Q9400s and Core i7-12700KF, ask them in Comments section, and we shall answer.

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Intel Core 2 Quad Q9400s
Core 2 Quad Q9400s
Intel Core i7-12700KF
Core i7-12700KF

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Community ratings

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3.5 23 votes

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4.3 1182 votes

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