i9-9820X vs i3-7100

Place in the ranking	1693	597
Place by popularity	79	not in top-100
Cost-effectiveness evaluation	0.92	4.78
Market segment	Desktop processor	Desktop processor
Series	Intel Core i3	Intel Core i9
Power efficiency	5.05	7.30
Architecture codename	Kaby Lake (2016−2019)	Skylake (server) (2017−2019)
Release date	3 January 2017 (7 years ago)	8 October 2018 (6 years ago)
Launch price (MSRP)	$117	$898

Cost-effectiveness evaluation

Performance per price, higher is better.

i9-9820X has 420% better value for money than i3-7100.

Detailed specifications

Core i3-7100 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 cores	2 (Dual-core)	10 (Deca-Core)
Threads	4	20
Base clock speed	3.9 GHz	3.3 GHz
Boost clock speed	3.9 GHz	4.2 GHz
Bus type	DMI 3.0	DMI 3.0
Bus rate	8 GT/s	4 × 8 GT/s
Multiplier	39	33
L1 cache	128 KB	640 KB
L2 cache	512 KB	10 MB
L3 cache	3 MB (shared)	16.5 MB (shared)
Chip lithography	14 nm	14 nm
Maximum core temperature	100 °C	92 °C
Maximum case temperature (TCase)	65 °C	72 °C
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	-	+

Compatibility

Information on Core i3-7100 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 configuration	1 (Uniprocessor)	1 (Uniprocessor)
Socket	FCLGA1151	FCLGA2066
Power consumption (TDP)	51 Watt	165 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i3-7100 and Core i9-9820X. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® 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 3.0	no data	+

Security technologies

Core i3-7100 and Core i9-9820X technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	+
Secure Key	+	no data
MPX	+	-
Identity Protection	+	-
SGX	Yes with Intel® ME	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i3-7100 and Core i9-9820X are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i3-7100 and Core i9-9820X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR4-2666
Maximum memory size	64 GB	128 GB
Max memory channels	2	4
Maximum memory bandwidth	38.397 GB/s	85.33 GB/s
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics 630	N/A
Max video memory	64 GB	no data
Quick Sync Video	+	-
Clear Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	1.1 GHz	no data
InTru 3D	+	no data

Graphics interfaces

Available interfaces and connections of Core i3-7100 and Core i9-9820X integrated GPUs.

Number of displays supported

no data

Graphics image quality

Maximum display resolutions supported by Core i3-7100 and Core i9-9820X integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	no data
Max resolution over HDMI 1.4	4096x2304@24Hz	no data
Max resolution over eDP	4096x2304@60Hz	no data
Max resolution over DisplayPort	4096x2304@60Hz	no data

Graphics API support

APIs supported by Core i3-7100 and Core i9-9820X integrated GPUs, sometimes API versions are included.

DirectX	12	no data
OpenGL	4.5	no data

Peripherals

Specifications and connection of peripherals supported by Core i3-7100 and Core i9-9820X.

PCIe version	3.0	3.0
PCI Express lanes	16	44

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.

i3-7100 2.72

i9-9820X 12.72
+368%

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.

i3-7100 4323

i9-9820X 20210
+367%

Gaming performance

Pros & cons summary

Performance score	2.72	12.72
Recency	3 January 2017	8 October 2018
Physical cores	2	10
Threads	4	20
Power consumption (TDP)	51 Watt	165 Watt

i3-7100 has 223.5% lower power consumption.

i9-9820X, on the other hand, has a 367.6% higher aggregate performance score, an age advantage of 1 year, and 400% more physical cores and 400% more threads.

The Core i9-9820X is our recommended choice as it beats the Core i3-7100 in performance tests.

Should you still have questions on choice between Core i3-7100 and Core i9-9820X, ask them in Comments section, and we shall answer.