Core i9-9900KF

Details and Benchmarks for Intel Core i9-9900KF

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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 i9-9900KF based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

6,259 Rank: 164
Rank Name Score Visual
160 Core i9-9900 6,266
+0.1%
161 Xeon W-1350P 6,262
+0%
162 EPYC 7402P 6,261
+0%
163 Core i9-10900K 6,261
+0%
164 Core i9-9900KF 6,259
165 Ryzen 7 5700X 6,255
-0.1%
166 Core i9-13900E 6,248
-0.2%
167 AMD Ryzen 7 1800X 6,246
-0.2%
168 Xeon w3-2435 6,246
-0.2%
169 Xeon Platinum 8176 6,239
-0.3%

View full ranking →

Multicore Score

Multicore performance score for Core i9-9900KF based on multi-threaded benchmark results.

5,732 Rank: 306
Rank Name Score Visual
302 AMD Ryzen 5 1600X 5,748
+0.3%
303 Ryzen 7 3800XT 5,743
+0.2%
304 Ryzen 5 5600GT 5,741
+0.2%
305 Xeon E5-2689 v4 5,736
+0.1%
306 Core i9-9900KF 5,732
307 Core i7-8086K 5,731
+-0%
308 Xeon W-3225 5,727
-0.1%
309 Xeon E-2386G 5,721
-0.2%
310 Ryzen Threadripper 1900X 5,720
-0.2%
311 Xeon Silver 4310T 5,720
-0.2%

View full ranking →

Singlecore Score

Single-core performance score for Core i9-9900KF based on single-threaded benchmark results.

6,610 Rank: 94
Rank Name Score Visual
90 Ryzen 9 PRO 5945 6,656
+0.7%
91 Xeon W-1370P 6,635
+0.4%
92 Ryzen 9 3900X 6,633
+0.3%
93 Ryzen 7 8845HS 6,625
+0.2%
94 Core i9-9900KF 6,610
95 Ryzen 5 7540U 6,606
-0.1%
96 Xeon W-1350 6,602
-0.1%
97 Ryzen 7 PRO 5845 6,601
-0.1%
98 Xeon w9-3495X 6,600
-0.2%
99 Core i9-11900K 6,599
-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 i9-9900KF based on integer math, floating point math, and prime number computation benchmarks.

5,053 Rank: 349
Rank Name Score Visual
345 Ryzen 7 5825U 5,059
+0.1%
346 Core Ultra 7 165U 5,057
+0.1%
347 Xeon W-1350P 5,056
+0.1%
348 Xeon W-2145 5,053
+0%
349 Core i9-9900KF 5,053
350 Xeon Silver 4309Y 5,053
+0%
351 Core Ultra 5 125U 5,052
+-0%
352 Core i9-9900K 5,051
+-0%
353 Ryzen 5 7540U 5,048
-0.1%
354 Core Ultra 5 135U 5,047
-0.1%

View full ranking →

Data Processing

Aggregated score for Core i9-9900KF based on data encryption, data compression, and string sorting benchmarks.

5,171 Rank: 334
Rank Name Score Visual
330 Ryzen 5 5500 5,177
+0.1%
331 Xeon Gold 5315Y 5,177
+0.1%
332 Ryzen 7 PRO 2700 5,176
+0.1%
333 Core i9-9900K 5,172
+0%
334 Core i9-9900KF 5,171
335 Xeon W-1350P 5,171
+0%
336 Xeon E5-4660 v4 5,170
+-0%
337 Xeon E5-2687W v4 5,161
-0.2%
338 Ryzen 5 3600XT 5,158
-0.3%
339 Xeon D-2187NT 5,157
-0.3%

View full ranking →

Physics & Compute

Aggregated score for Core i9-9900KF based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

5,127 Rank: 326
Rank Name Score Visual
322 Core i7-10700KF 5,139
+0.2%
323 Core i7-10700K 5,136
+0.2%
324 Ryzen Threadripper 2920X 5,132
+0.1%
325 Xeon Gold 5215 5,127
+0%
326 Core i9-9900KF 5,127
327 Xeon E5-2689 v4 5,126
+-0%
328 Core i9-9900K 5,126
+-0%
329 Ryzen 9 5900HX 5,126
+-0%
330 Xeon E5-2680 v4 5,122
-0.1%
331 Core i9-10900 5,120
-0.1%

View full ranking →

Core i9-9900KF Details

The Intel Core i9-9900KF stands as a high-performance desktop processor from the Coffee Lake Refresh generation, launched in January 2019. While now several years old, it remains a potent option for enthusiasts and power users seeking strong single-threaded performance. At the time of its release, it competed directly with AMD’s Ryzen 7 2700X and Intel’s own Core i9-9900K, offering a similar feature set with a slight cost advantage due to its lack of integrated graphics. As of March 2026, the Core i9-9900KF is no longer a top-tier contender in the CPU landscape, but its performance still places it in the upper echelon of older processors.

Featuring eight cores and sixteen threads enabled via Hyper-Threading, the i9-9900KF operates at a base clock of 3.6 GHz and can boost up to 5.0 GHz on a single core, making it particularly effective in single-threaded applications. Built on Intel’s 14 nm process and using the FCLGA-1151 socket, it supports DDR4-2666 memory across a dual-channel interface, with a maximum capacity of 128 GB. The processor includes 16 MB of L3 cache and 2 MB of L2 cache, while L1 cache totals 0.5 MiB, split into 0.25 MiB for data and 0.25 MiB for instructions. It consumes 95 W under typical load, requiring adequate cooling, especially when overclocked.

One of the i9-9900KF’s most notable features is its unlocked multiplier, which allows for easy overclocking and makes it a popular choice among overclockers. It supports a wide array of modern instruction sets, including AVX, AVX2, AES-NI, and Intel’s Speed Shift and Turbo Boost 2.0 technologies. However, it lacks integrated graphics, necessitating a discrete GPU, and does not support AVX-512 or ECC memory, which limits its appeal in professional or server environments.

In benchmark testing, the Core i9-9900KF achieves an overall score of 6259, ranking #164 out of 2060 processors. Its single-core score of 6610 places it at #94, outperforming many modern CPUs in this category, including the Ryzen 7 5700X and Xeon W-1350. The multicore score of 5732 ranks it #306, showing a performance gap compared to newer multi-core processors but still competitive with older high-end models like the Core i7-8086K. In the Passmark tests, it scores 5053 in number crunching and 5171 in data processing, further reinforcing its strong single-threaded capabilities.

When compared to its closest peers, the i9-9900KF holds its own in single-core performance but trails behind more recent Intel and AMD offerings in multicore workloads. It is surpassed by the Core i9-10900K and Core i9-13900K in overall performance, while AMD’s Ryzen 9 7950X and Threadripper series dominate in multi-threaded tasks. Despite its age, the Core i9-9900KF remains a solid choice for gaming and productivity tasks that benefit from high clock speeds, particularly in scenarios where integrated graphics are not required. For users with existing LGA-1151 platforms, it offers a compelling upgrade path, though newer architectures provide better efficiency and future-proofing.
Frequently Compared

Intel Core i5-1135G7 28 views

Intel Xeon Silver 4214 22 views

Intel Xeon Silver 4112 21 views

AMD Ryzen 3 PRO 2200GE 20 views

AMD Ryzen 9 PRO 3900 19 views

AMD Ryzen 5 PRO 3500U 19 views

AMD EPYC 7452 19 views

AMD EPYC 7302P 19 views

Intel Xeon Silver 4116T 19 views

Intel Xeon W-3245M 16 views

Intel Core i9-9900KF

Main Specifications

Designer: Intel
Name: Core i9-9900KF
Family: Core
Series: i9-9000
Model Number: i9-9900KF
Cores: 8
Threads: 16
Base Frequency: 3600 MHz
Turbo Frequency (1 core): 5000 MHz
Turbo Frequency (2 cores): 5000 MHz
Clock Multiplier: 36x (unlocked)
Microarchitecture: Coffee Lake
Core Name: Coffee Lake R
Core Family: 6
Core Model: 158
Socket: LGA-1151
Package: FCLGA-1151
Chipset: 300
Target Segment: Desktop
Max CPUs: 1
TDP: 95 W
Release Price: $488.00

Cache Specifications

L1 Cache: 512 KiB
L1 Instruction Cache: 256 KiB (8-way set associative)
L1 Data Cache: 256 KiB (8-way set associative)
L2 Cache: 2 MiB (4-way set associative)
L3 Cache: 16 MiB (16-way set associative)

Memory Specifications

Supported Memory Type: DDR4-2666
Memory Channels: 2
Maximum Memory: 128 GB
Maximum Bandwidth: 39.74 GB/s
ECC Support: No

PCI-Express Specifications

PCIe Revision: 3.0
PCIe Lanes: 16
PCIe Configuration: 1x16, 2x8, 1x8+2x4

Physical Specifications

Process: 14 nm
Die Area: 180.3 mm²
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 SST TXT VT-x VT-d EPT MPX SGX Secure Key SMEP IPT TSX Flex Memory MWT ATT FMA
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