Intel Core i9-11900KF vs Intel Core i9-9990XE

Comparative analysis of Intel Core i9-11900KF and Intel Core i9-9990XE processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, 3DMark Fire Strike - Physics Score.

Intel Core i9-11900KF

Intel Core i9-9990XE

Differences

Reasons to consider the Intel Core i9-11900KF

CPU is newer: launch date 2 year(s) 4 month(s) later
Around 4% higher clock speed: 5.30 GHz vs 5.10 GHz
Around 19% higher maximum core temperature: 100°C vs 84°C
2x lower typical power consumption: 125 Watt vs 255 Watt
Around 19% better performance in PassMark - Single thread mark: 3538 vs 2970

Specifications (specs)
Launch date	16 Mar 2021 vs 19 Oct 2018
Maximum frequency	5.30 GHz vs 5.10 GHz
Maximum core temperature	100°C vs 84°C
Thermal Design Power (TDP)	125 Watt vs 255 Watt
Benchmarks
PassMark - Single thread mark	3538 vs 2970

Reasons to consider the Intel Core i9-9990XE

Processor is unlocked, an unlocked multiplier allows for easier overclocking
6 more cores, run more applications at once: 14 vs 8
12 more threads: 28 vs 16
Around 75% more L1 cache; more data can be stored in the L1 cache for quick access later
7x more L2 cache, more data can be stored in the L2 cache for quick access later
Around 20% more L3 cache; more data can be stored in the L3 cache for quick access later
Around 21% better performance in PassMark - CPU mark: 30162 vs 25006

Specifications (specs)
Unlocked	Unlocked vs Locked
Number of cores	14 vs 8
Number of threads	28 vs 16
L1 cache	64K (per core) vs 512 KB
L2 cache	1 MB (per core) vs 2 MB
L3 cache	19.25 MB (shared) vs 16 MB
Benchmarks
PassMark - CPU mark	30162 vs 25006

Compare benchmarks

CPU 1: Intel Core i9-11900KF
CPU 2: Intel Core i9-9990XE

PassMark - Single thread mark

CPU 1

CPU 2

3538

2970

PassMark - CPU mark

CPU 1

CPU 2

25006

30162

Name	Intel Core i9-11900KF	Intel Core i9-9990XE
PassMark - Single thread mark	3538	2970
PassMark - CPU mark	25006	30162
3DMark Fire Strike - Physics Score	8382

Compare specifications (specs)

	Intel Core i9-11900KF	Intel Core i9-9990XE
Essentials
Architecture codename	Rocket Lake	Skylake
Launch date	16 Mar 2021	19 Oct 2018
Launch price (MSRP)	$513 - $524
Place in performance rating	443	456
Processor Number	i9-11900KF	i9-9980XE
Series	11th Generation Intel Core i9 Processors	Intel® Core™ X-series Processors
Status	Launched	Launched
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	3.50 GHz	4.00 GHz
Bus Speed	8 GT/s	4 × 8 GT/s
L1 cache	512 KB	64K (per core)
L2 cache	2 MB	1 MB (per core)
L3 cache	16 MB	19.25 MB (shared)
Manufacturing process technology	14 nm	14 nm
Maximum core temperature	100°C	84°C
Maximum frequency	5.30 GHz	5.10 GHz
Number of cores	8	14
Number of threads	16	28
Number of QPI Links		0
Unlocked
Memory
Max memory channels	2	4
Maximum memory bandwidth	50 GB/s
Maximum memory size	128 GB	128 GB
Supported memory types	DDR4-3200	DDR4-2666
Compatibility
Configurable TDP-down	95 Watt
Configurable TDP-down Frequency	3.00 GHz
Max number of CPUs in a configuration	1	1
Package Size	37.5 mm x 37.5 mm
Sockets supported	FCLGA1200	FCLGA2066
Thermal Design Power (TDP)	125 Watt	255 Watt
Thermal Solution	PCG 2019A
Peripherals
Max number of PCIe lanes	20	44
PCI Express revision	4.0	3.0
PCIe configurations	Up to 1x16+1x4, 2x8+1x4, 1x8+3x4
Scalability	1S Only	1S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® OS Guard
Intel® Secure Key technology
Intel® Software Guard Extensions (Intel® SGX)
Intel® Trusted Execution technology (TXT)
Secure Boot
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel SSE4.1, Intel SSE4.2, Intel AVX2, Intel AVX-512	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Stable Image Platform Program (SIPP)
Intel® Thermal Velocity Boost
Intel® Turbo Boost technology
Thermal Monitoring
Intel® Advanced Vector Extensions (AVX)
Number of AVX-512 FMA Units		2
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)