i7-9700KF vs i9-9800X

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Primary details

Comparing Core i9-9800X and Core i7-9700KF processor market type (desktop or notebook), architecture, sales start time and price.

Place in the rankingnot rated859
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data7.83
Market segmentDesktop processorDesktop processor
Seriesno dataIntel Core i7
Power efficiencyno data8.93
Architecture codenameSkylake-X (2018)Coffee Lake (2017−2019)
Release dateOctober 2018 (6 years ago)8 January 2019 (5 years ago)
Launch price (MSRP)no data$374

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i9-9800X and Core i7-9700KF 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 cores8 (Octa-Core)8 (Octa-Core)
Threads168
Base clock speedno data3.6 GHz
Boost clock speed3.8 GHz4.9 GHz
Bus typeno dataDMI 3.0
Bus rateno data4 × 8 GT/s
Multiplierno data36
L1 cache64K (per core)64K (per core)
L2 cache1 MB (per core)256K (per core)
L3 cache16.5 MB (shared)12 MB (shared)
Chip lithography14 nm14 nm
Maximum core temperatureno data100 °C
Maximum case temperature (TCase)72 °C72 °C
64 bit support++
Windows 11 compatibility-+
Unlocked multiplier++

Compatibility

Information on Core i9-9800X and Core i7-9700KF 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 (Uniprocessor)
Socket2066FCLGA1151
Power consumption (TDP)165 Watt95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-9800X and Core i7-9700KF. 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)++
Turbo Boost Technologyno data2.0
Hyper-Threading Technologyno data-
TSX++
Idle Statesno data+
Thermal Monitoring-+
SIPP-+

Security technologies

Core i9-9800X and Core i7-9700KF technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDBno data+
Secure Keyno data+
MPX-+
Identity Protection-+
SGXno dataYes with Intel® ME
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-9800X and Core i7-9700KF are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-9800X and Core i7-9700KF. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR4-2666
Maximum memory sizeno data128 GB
Max memory channelsno data2
Maximum memory bandwidthno data42.671 GB/s

Peripherals

Specifications and connection of peripherals supported by Core i9-9800X and Core i7-9700KF.

PCIe versionno data3.0
PCI Express lanesno data16

Pros & cons summary


Threads 16 8
Power consumption (TDP) 165 Watt 95 Watt

i9-9800X has 100% more threads.

i7-9700KF, on the other hand, has 73.7% lower power consumption.

We couldn't decide between Core i9-9800X and Core i7-9700KF. We've got no test results to judge.


Should you still have questions on choice between Core i9-9800X and Core i7-9700KF, ask them in Comments section, and we shall answer.

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Intel Core i9-9800X
Core i9-9800X
Intel Core i7-9700KF
Core i7-9700KF

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Community ratings

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3.8 4 votes

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Questions & comments

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