i7-9800X vs i3-8350K

VS

Aggregate performance score

Core i3-8350K
2017
4 cores / 4 threads, 91 Watt
4.32
Core i7-9800X
2018
8 cores / 16 threads, 165 Watt
11.39
+164%

Core i7-9800X outperforms Core i3-8350K by a whopping 164% based on our aggregate benchmark results.

Primary details

Comparing Core i3-8350K and Core i7-9800X processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1365693
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation3.496.48
Market segmentDesktop processorDesktop processor
SeriesIntel Core i3Intel Core i7
Power efficiency4.496.53
Architecture codenameCoffee Lake (2017−2019)Skylake (server) (2017−2018)
Release date5 October 2017 (7 years ago)19 October 2018 (6 years ago)
Launch price (MSRP)$168$589

Cost-effectiveness evaluation

Performance per price, higher is better.

i7-9800X has 86% better value for money than i3-8350K.

Detailed specifications

Core i3-8350K and Core i7-9800X 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)8 (Octa-Core)
Threads416
Base clock speed4 GHz3.8 GHz
Boost clock speed4 GHz4.5 GHz
Bus typeDMI 3.0DMI 3.0
Bus rate4 × 8 GT/s4 × 8 GT/s
Multiplier4038
L1 cache64K (per core)64 KB (per core)
L2 cache256K (per core)1 MB (per core)
L3 cache8 MB (shared)16.5 MB (shared)
Chip lithography14 nm14 nm
Die size126 mm2no data
Maximum core temperature100 °C95 °C
Maximum case temperature (TCase)72 °C72 °C
64 bit support++
Windows 11 compatibility++
Unlocked multiplier++

Compatibility

Information on Core i3-8350K and Core i7-9800X 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 configuration1 (Uniprocessor)1 (Uniprocessor)
SocketFCLGA1151FCLGA2066
Power consumption (TDP)91 Watt165 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i3-8350K and Core i7-9800X. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
AES-NI++
AVX++
Enhanced SpeedStep (EIST)++
Turbo Boost Technology-2.0
Hyper-Threading Technology-+
TSX-+
Idle States+no data
Thermal Monitoring+-
Turbo Boost Max 3.0no data+

Security technologies

Core i3-8350K and Core i7-9800X technologies aimed at improving security, for example, by protecting against hacks.

TXT-no data
EDB++
Secure Key+no data
MPX+-
Identity Protection+-
SGXYes with Intel® MEno data
OS Guard+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i3-8350K and Core i7-9800X are enumerated here.

VT-d++
VT-x++
EPT+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i3-8350K and Core i7-9800X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-2400DDR4-2666
Maximum memory size64 GB128 GB
Max memory channels24
Maximum memory bandwidth38.397 GB/s85.33 GB/s
ECC memory support+-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel UHD Graphics 630N/A
Max video memory64 GBno data
Quick Sync Video+-
Clear Video+no data
Clear Video HD+no data
Graphics max frequency1.15 GHzno data
InTru 3D+no data

Graphics interfaces

Available interfaces and connections of Core i3-8350K and Core i7-9800X integrated GPUs.

Number of displays supported3no data

Graphics image quality

Maximum display resolutions supported by Core i3-8350K and Core i7-9800X integrated GPUs, including resolutions over different interfaces.

4K resolution support+no data
Max resolution over HDMI 1.44096x2304@24Hzno data
Max resolution over eDP4096x2304@60Hzno data
Max resolution over DisplayPort4096x2304@60Hzno data

Graphics API support

APIs supported by Core i3-8350K and Core i7-9800X integrated GPUs, sometimes API versions are included.

DirectX12no data
OpenGL4.5no data

Peripherals

Specifications and connection of peripherals supported by Core i3-8350K and Core i7-9800X.

PCIe version3.03.0
PCI Express lanes1644

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.

i3-8350K 4.32
i7-9800X 11.39
+164%

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.

i3-8350K 6863
i7-9800X 18089
+164%

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

i3-8350K 1514
+8.5%
i7-9800X 1395

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

i3-8350K 4364
i7-9800X 7423
+70.1%

Gaming performance

Pros & cons summary


Performance score 4.32 11.39
Recency 5 October 2017 19 October 2018
Physical cores 4 8
Threads 4 16
Power consumption (TDP) 91 Watt 165 Watt

i3-8350K has 81.3% lower power consumption.

i7-9800X, on the other hand, has a 163.7% higher aggregate performance score, an age advantage of 1 year, and 100% more physical cores and 300% more threads.

The Core i7-9800X is our recommended choice as it beats the Core i3-8350K in performance tests.


Should you still have questions on choice between Core i3-8350K and Core i7-9800X, ask them in Comments section, and we shall answer.

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Intel Core i3-8350K
Core i3-8350K
Intel Core i7-9800X
Core i7-9800X

Similar processor comparisons

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Community ratings

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Questions & comments

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