PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.

Overview

The Core i9-11900KB is manufactured by Intel. It was released in Maio 2021 (4 years ago). It is based on the Tiger Lake-H (2021) architecture. It features 8 cores and 16 threads. Base frequency is 3.3 GHz, with boost up to 4.9 GHz. L3 cache: 24 MB (total). L2 cache: 1.25 MB (per core). Built on 10 nm SuperFin process technology. Socket: FCBGA1787. Thermal design power (TDP): 65 Watt. Memory support: DDR4. Passmark benchmark score: 22,693 points. Launch price was $539.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money.

MSRP is the manufacturer's suggested retail price.•
Avg price is the current average price collected from markets across the web.

Performance Per Dollar Core i9-11900KB

#284

Core i7-14701E

MSRP: $392|Avg: $380

106%

#284

Ryzen Threadripper 1950X

MSRP: $999|Avg: $300

42%

#285

Core i5-10400

MSRP: $182|Avg: $175

106%

#286

Core i3-12100

MSRP: $122|Avg: $180

106%

#287

Core Ultra 9 285T

MSRP: $549|Avg: $549

104%

#288

Ryzen Threadripper 1950

MSRP: $999|Avg: $300

34%

#288

Core i5-12500TE

MSRP: $225|Avg: $225

103%

#289

Athlon Silver PRO 3125GE

MSRP: $108|Avg: $70

102%

#290

Core i9-10900KF

MSRP: $509|Avg: $336

102%

#291

Core i9-14900T

MSRP: $549|Avg: $577

102%

#291

Core i9-7900X

MSRP: $999|Avg: $188

32%

#292

Core i5-13500T

MSRP: $342|Avg: $342

102%

#293

Core i3-10300

MSRP: N/A|Avg: $140.49

102%

#294

Core i9-10900F

MSRP: $464|Avg: $300

102%

#294

Core i9-7920X

MSRP: $1199|Avg: $236

30%

#295

Ryzen 7 5800X3D

MSRP: $449|Avg: $429

102%

#295

Core i9-7940X

MSRP: $1399|Avg: $275

28%

#296

Core i7-9700F

MSRP: $323|Avg: $200

102%

#297

Ryzen Threadripper 9960X

MSRP: $1499|Avg: $1419

101%

#298

Core i9-7960X

MSRP: $1699|Avg: $185

25%

#298

Core i5-9500F

MSRP: $187|Avg: $154

100%

#299

Core i9-7980XE

MSRP: $1999|Avg: $300

23%

#299

Core i9-11900KB

MSRP: $539|Avg: $350

100%

#300

Core i7-10700F

MSRP: $310|Avg: $250

100%

#301

Core i7-10700T

MSRP: $355|Avg: $200

99%

#302

Core i7-6900K

MSRP: $1089|Avg: $1089

21%

#302

Celeron G5920

MSRP: $52|Avg: $40

99%

#303

Core i3-10105T

MSRP: $122|Avg: $122

99%

#303

Core i7-5960X

MSRP: $999|Avg: $83

21%

#304

Core i7-6950X

MSRP: $1723|Avg: $180

16%

#304

Celeron G5900

MSRP: $50|Avg: $42

98%

Based on actual market prices and performance synthetic scores.

FPS Benchmarks

Predicted performance for Core i9-11900KB across popular games. Tested paired with RTX 4090 to isolate CPU performance.

Technical Analysis

Detailed breakdown of Core i9-11900KB specifications and capabilities.

⚡

Processing Power

The Core i9-11900KB is a 8-core / 16-thread processor based on the Tiger Lake-H (2021) architecture, manufactured on a 10 nm SuperFin process node. It reaches a maximum boost clock of 4.9 GHz from a base frequency of 3.3 GHz— higher boost clocks directly translate to better single-threaded performance and responsiveness in gaming. It carries 24 MB (total) of L3 cache, plus 1.25 MB (per core) of L2 cache and 80 kB (per core) of L1 cache per core. In the PassMark benchmark (a comprehensive multi-threaded test), it scores 22,693, placing it in the Mid-Range performance tier as a Aging generation product. Cinebench R23 multi-core (measuring sustained rendering workload performance) scores 12,264.

Specification	Core i9-11900KB
Cores / ThreadsPhysical/logical processing units	8C / 16T
Max Boost ClockPeak single-core speed under boost	4.9 GHz
Base ClockGuaranteed minimum operating frequency	3.3 GHz
ArchitectureCPU microarchitecture design	Tiger Lake-H (2021)
Process NodeFabrication technology — smaller = more efficient	10 nm SuperFin
L3 CacheShared cache — reduces memory latency for all cores	24 MB (total)
L2 CachePer-core fast cache for frequently accessed data	1.25 MB (per core)
L1 CacheUltra-fast per-core cache	80 kB (per core)
Die SizePhysical silicon area of the processor	190 mm2
Bus SpeedData bus frequency	8 GT/s
Max TemperatureMaximum safe operating temperature (Tjmax)	100 °C
64-bit Support	Yes
Windows 11 Compatible	No
Unlocked MultiplierWhether the CPU can be overclocked	Yes (Overclockable)
PassMark ScoreOverall multi-threaded benchmark score	22,693
Cinebench R23 MultiSustained multi-core rendering performance	12,264
Geekbench 6 MultiMulti-core parallel workload performance	10,645

🧠

Memory & Platform

The Core i9-11900KB fits into the FCBGA1787 socket and supports PCIe 3.0 with 20 total PCIe lanes for expansion cards and storage. It supports DDR4 memory at speeds up to DDR4-3200 (faster RAM improves bandwidth-sensitive workloads), with a maximum capacity of 128 GB across 2 channels (dual-channel doubles bandwidth). Integrated graphics: Intel UHD Graphics — allows display output without a dedicated GPU, useful for troubleshooting and light tasks.

Specification	Core i9-11900KB
TypeDesktop or Laptop processor	desktop
SocketMotherboard socket required	FCBGA1787
PCIe GenerationPeripheral interconnect speed — affects GPU and SSD bandwidth	PCIe 3.0
PCIe LanesTotal available lanes for GPUs, NVMe drives, and expansion	20
RAM TypeSupported memory standard	DDR4
Max RAM SpeedMaximum officially supported memory frequency	DDR4-3200
Max RAM CapacityMaximum installable memory	128 GB
RAM ChannelsDual-channel doubles bandwidth vs single-channel	2
ECC SupportError-Correcting Code memory — prevents data corruption	No
Integrated GPUBuilt-in graphics processor	Intel UHD Graphics
Compatible ChipsetsMotherboard chipsets that support this CPU	Mobile
Max CPUs in ConfigMulti-socket support for servers	1

🔧

Advanced Features

It features an unlocked multiplier, allowing enthusiasts to overclock beyond stock frequencies for additional performance. It supports AVX-512 instructions — specialized SIMD operations that significantly accelerate AI inference, scientific computing, and video encoding workloads. Virtualization: VT-x, VT-d — enables running virtual machines efficiently (important for development and server workloads).

Specification	Core i9-11900KB
OverclockingWhether CPU clock can be manually increased	✅ Unlocked
AVX-512Advanced vector instructions for AI/ML workloads	✅ Supported
VirtualizationHardware-assisted virtualization technology	VT-x, VT-d

🌡️

Power & Cooling

The Core i9-11900KB has a rated TDP (Thermal Design Power) of 65 Watt — this indicates the amount of heat generated under sustained load and determines what cooling solution is needed. No stock cooler is included — you will need to purchase an aftermarket cooler separately. Recommended cooling: High-End Laptop Cooling.

Specification	Core i9-11900KB
TDPThermal Design Power — heat output under sustained workload	65 Watt
Max TemperatureMaximum safe junction temperature (Tjmax)	100 °C
Included CoolerStock cooler bundled in the box	No
Recommended CoolerSuggested aftermarket cooling solution	High-End Laptop Cooling

💰

Value Analysis

At an average price of $350 (MSRP: $539), the Core i9-11900KB delivers 65 PassMark points per dollar. Performance ranking position: #656 out of all indexed processors.

Specification	Core i9-11900KB
MSRPManufacturer's Suggested Retail Price	$539
Avg Price (30d)Average market price over the last 30 days	$350
Launch PriceOriginal retail price at launch	$539
Performance RankPosition in overall performance ranking	#656
Release DateLaunch date	Maio 2021 (4 years ago)
Release Year	2021
DesignerArchitecture designer (e.g. Intel, AMD)	Intel
ManufacturerFabrication foundry (e.g. TSMC)	Intel