Core i9-11900K

Details and Benchmarks for Intel Core i9-11900K

Sysbuilds Alpha Stage!

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 i9-11900K based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

6,428 Rank: 130
Rank Name Score Visual
126 Ryzen 7 8845HS 6,453
+0.4%
127 Xeon w5-3425 6,447
+0.3%
128 Xeon Gold 6438Y+ 6,433
+0.1%
129 Xeon W-1390P 6,432
+0.1%
130 Core i9-11900K 6,428
131 Ryzen 7 7840HS 6,427
+-0%
132 Core i9-9940X 6,414
-0.2%
133 Ryzen Threadripper 2990WX 6,400
-0.4%
134 Core i9-10920X 6,392
-0.6%
135 Xeon Silver 4416+ 6,388
-0.6%

View full ranking →

Multicore Score

Multicore performance score for Core i9-11900K based on multi-threaded benchmark results.

6,171 Rank: 208
Rank Name Score Visual
204 Ryzen 9 3900XT 6,221
+0.8%
205 Ryzen 7 8845HS 6,195
+0.4%
206 Ryzen 7 7840HS 6,173
+0%
207 Ryzen 9 PRO 5945 6,173
+0%
208 Core i9-11900K 6,171
209 EPYC 7352 6,162
-0.1%
210 Ryzen 7 5800X3D 6,157
-0.2%
211 Ryzen AI 7 350 6,145
-0.4%
212 Core i9-13900H 6,141
-0.5%
213 Core i9-12900E 6,139
-0.5%

View full ranking →

Singlecore Score

Single-core performance score for Core i9-11900K based on single-threaded benchmark results.

6,599 Rank: 99
Rank Name Score Visual
95 Ryzen 5 7540U 6,606
+0.1%
96 Xeon W-1350 6,602
+0%
97 Ryzen 7 PRO 5845 6,601
+0%
98 Xeon w9-3495X 6,600
+0%
99 Core i9-11900K 6,599
100 Core Ultra 7 256V 6,598
+-0%
101 Ryzen 7 7840HS 6,597
+-0%
102 Core Ultra 7 258V 6,590
-0.1%
103 Ryzen 9 5900 6,581
-0.3%
104 Xeon w5-2465X 6,575
-0.4%

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 i9-11900K based on integer math, floating point math, and prime number computation benchmarks.

5,259 Rank: 246
Rank Name Score Visual
242 Core i9-7920X 5,271
+0.2%
243 Xeon W-1390P 5,270
+0.2%
244 Ryzen 5 5600X 5,269
+0.2%
245 Ryzen 5 5600 5,261
+0%
246 Core i9-11900K 5,259
247 Xeon Gold 6130 5,256
-0.1%
248 Xeon E5-2695 v4 5,256
-0.1%
249 Core i9-11900KF 5,253
-0.1%
250 Xeon Gold 5218 5,250
-0.2%
251 Ryzen 7 8840U 5,249
-0.2%

View full ranking →

Data Processing

Aggregated score for Core i9-11900K based on data encryption, data compression, and string sorting benchmarks.

5,413 Rank: 225
Rank Name Score Visual
221 Ryzen 7 3800XT 5,425
+0.2%
222 Ryzen 5 9600X 5,422
+0.2%
223 Ryzen 7 5800 5,422
+0.2%
224 Core i9-7920X 5,421
+0.1%
225 Core i9-11900K 5,413
226 Xeon E5-2673 v4 5,409
-0.1%
227 Ryzen 5 7600 5,401
-0.2%
228 Ryzen 7 3800X 5,400
-0.2%
229 Ryzen 7 PRO 3700 5,398
-0.3%
230 Xeon W-2175 5,398
-0.3%

View full ranking →

Physics & Compute

Aggregated score for Core i9-11900K based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

5,258 Rank: 254
Rank Name Score Visual
250 Core i7-9800X 5,268
+0.2%
251 Core i9-10850K 5,268
+0.2%
252 Core Ultra 7 256V 5,265
+0.1%
253 Xeon E5-2696 v3 5,262
+0.1%
254 Core i9-11900K 5,258
255 Xeon Gold 6144 5,256
+-0%
256 Ryzen Threadripper 2950X 5,252
-0.1%
257 Ryzen 7 7840U 5,249
-0.2%
258 Xeon W-1290P 5,246
-0.2%
259 Xeon E5-2686 v4 5,243
-0.3%

View full ranking →

Core i9-11900K Details

The Intel Core i9-11900K stands as a high-performance desktop processor from Intel's Rocket Lake-S generation, launched in March 2021. While now several years old, it remains notable for its strong single-threaded performance and high clock speeds, making it a compelling choice for enthusiasts and power users even as newer architectures emerge. At the heart of the processor is the Rocket Lake microarchitecture built on a 14 nm process, delivering an impressive 5.3 GHz turbo frequency under load. With eight cores and 16 threads—thanks to Intel Hyper-Threading—the i9-11900K is well-suited for multitasking and content creation workloads, though its multicore performance has been surpassed by more modern offerings.

The processor operates at a base clock of 3.5 GHz and features a robust cache hierarchy, including 0.076 MiB of L1 cache, 0.488 MiB of L2 cache, and a substantial 15.259 MiB of L3 cache. It supports DDR4 memory up to 3200 MT/s via a dual-channel interface and is compatible with the LGA 1200 socket, allowing use on a wide range of 500-series and 400-series motherboards. It also supports PCIe 4.0 with 20 lanes directly from the CPU, enhancing storage and GPU performance. The TDP of 125 W reflects its high power consumption, necessitating strong cooling solutions for sustained operation.

Integrated into the chip is Intel's UHD Graphics 750, which provides basic display output capabilities with support for up to three displays and a maximum frequency of 1.15 GHz. While not suitable for gaming or graphics-intensive applications, this GPU allows for system boot and display output without a discrete graphics card. The i9-11900K includes a full suite of Intel instruction sets, including AVX, AVX2, and AVX-512, enabling accelerated performance in scientific computing, encoding, and machine learning tasks. It also supports Intel's virtualization technologies such as VT-x and VT-d, making it viable for virtual machine environments.

In benchmark testing, the Core i9-11900K demonstrates its strengths in single-threaded performance, scoring 6,599 in the Singlecore Score and ranking #99 out of 2,060 processors. This places it ahead of many modern competitors, including the Ryzen 7 7840HS and Core Ultra 7 256V. However, its multicore performance, measured at 6,171, ranks it #208, lagging behind newer AMD Ryzen 7000 and Intel Core Ultra chips. The overall score of 6,428 positions it at #130 in the overall ranking, indicating that while it remains competitive, it has been overtaken by more advanced architectures.

As of March 2026, the Core i9-11900K is best suited for users who prioritize raw single-core speed and are building or upgrading systems with LGA 1200 motherboards. It remains a strong option for gaming, productivity, and overclocking due to its unlocked multiplier, but those seeking the latest improvements in efficiency and multicore performance may prefer more recent processors. Despite its age, the i9-11900K continues to deliver excellent performance for its price point and is a testament to Intel's efforts in the high-end desktop market during the Rocket Lake era.
Frequently Compared

Intel Xeon E5-2660 v4 27 views

Intel Atom Z520 24 views

AMD A10-4600M 24 views

AMD Phenom 9750 24 views

AMD Athlon II X2 265 23 views

Intel Core 2 Duo E8600 23 views

Intel Xeon W3505 22 views

Intel Core M 5Y10 21 views

AMD Ryzen 5 3600 18 views

AMD Ryzen 5 3500X 17 views

Intel Core i9-11900K

Main Specifications

Designer: Intel
Name: Core i9-11900K
Cores: 8
Threads: 16
Base Frequency: 3500 MHz
Clock Multiplier: 35x (unlocked)
Core Name: Rocket Lake
Socket: Socket 1200
Package: FC-LGA14A
Target Segment: Desktop
TDP: 125 W

Cache Specifications

L1 Cache: 77.824 KiB
L2 Cache: 0.488 MiB
L3 Cache: 15.259 MiB

Memory Specifications

Supported Memory Type: DDR4

Physical Specifications

Process: 14 nm
Die Area: 276 mm²
Manufacturer: Intel

CPU Features

MMX SSE SSE2 SSE3 SSSE3 SSE4.2 AVX AVX2 ABM BMI1 BMI2 FMA3 RdRand ADX CLMUL F16C TBT 2.0 EIST TXT VT-x VT-d SHA TSX TVB
Related News

3 sources · 1 week ago

Linux Kernel 7.1-rc6 Released: AMD Zen 6 Support Added as clearcpuid Docs Removed Amid Heavy Code Churn

With the release of Linux Kernel 7.1-rc6, AMD has expanded the range of recognized Zen 6 CPU model numbers up to 239, re...

3 sources · 5 days ago

7 sources · 4 days ago

Intel Unveils Arc G-Series: Panther Lake Chips with XeSS 3 Aim to Challenge AMD in Handheld Gaming Market

At Computex 2026, Intel introduced the new Arc G-Series, a processor family based on the Panther Lake architecture speci...

3 sources · 1 week ago

3 sources · 1 week ago

Login

Forgot your password?

Your experience on this site will be improved by allowing cookies.