Core i9-9820X

Details and Benchmarks for Intel Core i9-9820X

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Please take all results with a big grain of salt. Sysbuilds is in alpha stage at the moment which can lead to wrong data, strange counting errors, silly results and more. This site is under active development.

Benchmark Results

Combined benchmark scores based on multiple data points, giving a quick overview of this processor's performance.

Overall Score

Overall score for Core i9-9820X based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

5,977 Rank: 261
Rank Name Score Visual
257 Ryzen 7 7735HS 5,985
+0.1%
258 Ryzen 7 6800H 5,985
+0.1%
259 Core Ultra 5 125U 5,983
+0.1%
260 Core i7-10700KF 5,981
+0.1%
261 Core i9-9820X 5,977
262 Core Ultra 5 134U 5,969
-0.1%
263 Core i7-9700KF 5,968
-0.2%
264 EPYC 7F52 5,967
-0.2%
265 Core i7-8700 5,959
-0.3%
266 Xeon W-3245M 5,956
-0.4%

View full ranking →

Multicore Score

Multicore performance score for Core i9-9820X based on multi-threaded benchmark results.

5,895 Rank: 259
Rank Name Score Visual
255 Ryzen 7 PRO 2700X 5,909
+0.2%
256 Xeon Gold 6230 5,904
+0.2%
257 Core i9-10900KF 5,899
+0.1%
258 Xeon E5-2696 v3 5,899
+0.1%
259 Core i9-9820X 5,895
260 Ryzen 7 8840HS 5,892
-0.1%
261 Xeon Platinum 8270 5,890
-0.1%
262 Ryzen 7 5800 5,881
-0.2%
263 Core i5-12400F 5,880
-0.3%
264 Ryzen 7 8840U 5,878
-0.3%

View full ranking →

Singlecore Score

Single-core performance score for Core i9-9820X based on single-threaded benchmark results.

6,032 Rank: 257
Rank Name Score Visual
253 Xeon E3-1280 v6 6,040
+0.1%
254 FX-8140 6,040
+0.1%
255 Core i5-7640X 6,038
+0.1%
256 Core i7-10700F 6,034
+0%
257 Core i9-9820X 6,032
258 Core i5-10600KF 6,028
-0.1%
259 Core i7-10700K 6,027
-0.1%
260 Ryzen Threadripper 2970WX 6,023
-0.1%
261 Core i9-9980HK 6,020
-0.2%
262 AMD Ryzen 7 1700X 6,020
-0.2%

View full ranking →

Workload Scores

Performance scores grouped by workload type, normalized and aggregated from multiple raw benchmark results.

Number Crunching

Aggregated score for Core i9-9820X based on integer math, floating point math, and prime number computation benchmarks.

5,169 Rank: 297
Rank Name Score Visual
293 Ryzen 7 PRO 3700 5,176
+0.1%
294 Ryzen 7 PRO 5750GE 5,174
+0.1%
295 Ryzen 7 6800HS 5,174
+0.1%
296 Xeon Gold 6334 5,172
+0.1%
297 Core i9-9820X 5,169
298 Core i9-7900X 5,167
+-0%
299 Core i9-10900E 5,166
-0.1%
300 Ryzen 7 3700X 5,163
-0.1%
301 Xeon W-2155 5,160
-0.2%
302 Xeon E5-2680 v4 5,155
-0.3%

View full ranking →

Data Processing

Aggregated score for Core i9-9820X based on data encryption, data compression, and string sorting benchmarks.

5,254 Rank: 296
Rank Name Score Visual
292 Ryzen 9 4900HS 5,268
+0.3%
293 Core i9-11900F 5,267
+0.2%
294 Ryzen 7 PRO 5750GE 5,261
+0.1%
295 Ryzen 7 7736U 5,255
+0%
296 Core i9-9820X 5,254
297 Xeon W-2155 5,249
-0.1%
298 Xeon W-2150B 5,246
-0.2%
299 Ryzen 7 4800H 5,246
-0.2%
300 Xeon W-1290E 5,246
-0.2%
301 Core i9-10900F 5,244
-0.2%

View full ranking →

Physics & Compute

Aggregated score for Core i9-9820X based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

5,363 Rank: 223
Rank Name Score Visual
219 EPYC 7401P 5,372
+0.2%
220 Xeon Gold 6130 5,370
+0.1%
221 Xeon E5-2679 v4 5,370
+0.1%
222 Xeon Gold 6246 5,365
+0%
223 Core i9-9820X 5,363
224 Ryzen 7 5800X 5,362
+-0%
225 Xeon E5-2698 v4 5,361
+-0%
226 Xeon W-2155 5,356
-0.1%
227 Core i9-7900X 5,356
-0.1%
228 Core i9-12900E 5,353
-0.2%

View full ranking →

Core i9-9820X Details

As of March 2026, the Intel Core i9-9820X remains a high-end desktop processor from the 9th Gen X-Series lineup, launched in October 2018. While it is now over seven years old, its performance in multi-threaded workloads still places it among the upper tier of processors in historical benchmarks. With a base clock of 3.3 GHz and a turbo frequency of up to 4.2 GHz, the i9-9820X leverages Intel's Skylake-X Refresh microarchitecture on a 14 nm process node, delivering strong single-threaded and multi-threaded performance for its time. The chip features 10 cores and 20 threads thanks to Hyper-Threading, paired with a substantial 16.5 MiB L3 cache, which significantly aids in data-intensive tasks such as video editing, 3D rendering, and scientific simulations.

The Core i9-9820X operates on the FCLGA-2066 socket, requiring a compatible X299 chipset motherboard, and supports quad-channel DDR4-2666 memory with a maximum capacity of 128 GB. It also features a 44-lane PCIe 3.0 interface, enabling high-bandwidth connectivity for multiple GPUs and high-speed storage devices. However, the processor does not include integrated graphics, necessitating a discrete GPU for any display output. Its TDP of 165 W reflects its power-hungry nature, demanding robust cooling solutions—especially when operating under sustained load.

In benchmark testing, the Core i9-9820X achieves an Overall Score of 5977, ranking #261 of 2060 processors. It scores 6032 in Singlecore and 5895 in Multicore, placing it behind newer Intel and AMD offerings in both categories. For instance, the Core i7-10700KF and Ryzen 7 PRO 2700X outperform it in single-threaded workloads, while modern Ryzen Threadripper and Intel Core Ultra processors dominate in multicore performance. Despite this, the i9-9820X still holds its own against many current mid-range and high-end CPUs, particularly in applications that benefit from high core counts and AVX-512 support.

The processor supports a range of advanced instruction sets, including AVX, AVX2, AVX-512 (with two execution units), AES-NI, and Intel Turbo Boost Max Technology 3.0, which allows for dynamic frequency optimization. It also supports ECC memory, although this is limited to workstation and server platforms. While it lacks the latest features found in current-generation CPUs, such as integrated AI accelerators or support for DDR5, the i9-9820X remains a viable option for users who require raw multi-threaded performance and are working within a legacy Intel X299 ecosystem.

In summary, the Core i9-9820X is best suited for power users and professionals who already own compatible hardware and prioritize multi-core performance over energy efficiency or modern features. While it is no longer a top-tier performer in 2026, its strong historical benchmark results and robust feature set make it a compelling choice for budget-conscious builders or those maintaining older workstations.
Frequently Compared

AMD Phenom II X6 1100T 30 views

Intel Xeon W3690 29 views

AMD Ryzen Threadripper PRO 5965WX 29 views

Intel Intel Atom x5-Z8330 28 views

AMD Phenom X3 8450 28 views

AMD Ryzen 7 PRO 1700X 27 views

Intel Xeon E3-1225 v5 26 views

Intel Celeron B840 24 views

AMD Phenom X3 8650 22 views

Intel Xeon E5-2650L v2 22 views

Intel Core i9-9820X

Main Specifications

Designer: Intel
Name: Core i9-9820X
Family: Core
Series: i9-9000
Model Number: i9-9820X
Cores: 10
Threads: 20
Base Frequency: 3300 MHz
Turbo Frequency (1 core): 4100 MHz
Turbo Frequency (2 cores): 4100 MHz
Clock Multiplier: 33x (unlocked)
Microarchitecture: Skylake
Core Name: Skylake X Refresh
Core Family: 6
Socket: Socket
Package: FCLGA-2066
Chipset: Lewisburg
Target Segment: Desktop
Max CPUs: 1
TDP: 165 W
Release Price: $898.00

Cache Specifications

L1 Cache: 640 KiB
L1 Instruction Cache: 320.512 KiB (8-way set associative)
L1 Data Cache: 320.512 KiB (8-way set associative)
L2 Cache: 10 MiB (16-way set associative)
L3 Cache: 16.5 MiB (11-way set associative)

Memory Specifications

Supported Memory Type: DDR4-2666
Memory Channels: 4
Maximum Memory: 128 GB
Maximum Bandwidth: 79.47 GB/s
ECC Support: No

PCI-Express Specifications

PCIe Revision: 3.0
PCIe Lanes: 44
PCIe Configuration: x16, x8, x4

Physical Specifications

Process: 14 nm
Manufacturer: Intel
Technology: CMOS
Word Size: 64-bit
ISA: x86-64 (x86)

CPU Features

MMX EMMX SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AVX AVX2 ABM BMI1 BMI2 FMA3 AES RdRand ADX CLMUL F16C x86-16 x86-32 x86-64 Real Protected SMM FPU NX HT TBT 2.0 EIST TXT vPro VT-x VT-d EPT AVX-512 AVX512F AVX512CD AVX512BW AVX512DQ AVX512VL TSX Flex Memory AVX-512 TBMT 3.0 TBT 1.0 FMA
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