i9-9820X vs i9-9800X

VS

Primary details

Comparing Core i9-9800X and Core i9-9820X processor market type (desktop or notebook), architecture, sales start time and price.

Place in the rankingnot rated606
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data5.00
Market segmentDesktop processorDesktop processor
Seriesno dataIntel Core i9
Power efficiencyno data7.30
Architecture codenameSkylake-X (2018)Skylake (server) (2017−2018)
Release dateOctober 2018 (6 years ago)19 October 2018 (6 years ago)
Launch price (MSRP)no data$898

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i9-9800X and Core i9-9820X 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)10 (Deca-Core)
Threads1620
Base clock speedno data3.3 GHz
Boost clock speed3.8 GHz4.2 GHz
Bus typeno dataDMI 3.0
Bus rateno data4 × 8 GT/s
Multiplierno data33
L1 cache64K (per core)64 KB (per core)
L2 cache1 MB (per core)1 MB (per core)
L3 cache16.5 MB (shared)16.5 MB (shared)
Chip lithography14 nm14 nm
Maximum core temperatureno data92 °C
Maximum case temperature (TCase)72 °C72 °C
64 bit support++
Windows 11 compatibility-+
Unlocked multiplier++

Compatibility

Information on Core i9-9800X and Core i9-9820X 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)
Socket2066FCLGA2066
Power consumption (TDP)165 Watt165 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-9800X and Core i9-9820X. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
AES-NI++
AVX++
Enhanced SpeedStep (EIST)++
Turbo Boost Technologyno data2.0
Hyper-Threading Technologyno data+
TSX++
Turbo Boost Max 3.0no data+

Security technologies

Core i9-9800X and Core i9-9820X technologies aimed at improving security, for example, by protecting against hacks.

TXT+no data
EDBno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-9800X and Core i9-9820X are enumerated here.

VT-d++
VT-x++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-9800X and Core i9-9820X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR4-2666
Maximum memory sizeno data128 GB
Max memory channelsno data4
Maximum memory bandwidthno data85.33 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataN/A

Peripherals

Specifications and connection of peripherals supported by Core i9-9800X and Core i9-9820X.

PCIe versionno data3.0
PCI Express lanesno data44

Pros & cons summary


Physical cores 8 10
Threads 16 20

i9-9820X has 25% more physical cores and 25% more threads.

We couldn't decide between Core i9-9800X and Core i9-9820X. We've got no test results to judge.


Should you still have questions on choice between Core i9-9800X and Core i9-9820X, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


Intel Core i9-9800X
Core i9-9800X
Intel Core i9-9820X
Core i9-9820X

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

Community ratings

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


3.8 4 votes

Rate Core i9-9800X on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.2 44 votes

Rate Core i9-9820X on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Core i9-9800X or Core i9-9820X, agree or disagree with our judgements, or report an error or mismatch.