Ultra 5 238V vs i9-11900KB

Primary details

Comparing Core i9-11900KB and Core Ultra 5 238V processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	501	525
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	17.86	no data
Market segment	Desktop processor	Laptop
Power efficiency	20.98	78.17
Architecture codename	Tiger Lake-H (2021)	Lunar Lake (2024)
Release date	May 2021 (3 years ago)	24 September 2024 (less than a year ago)
Launch price (MSRP)	$539	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i9-11900KB and Core Ultra 5 238V basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	8 (Octa-Core)	8 (Octa-Core)
Performance-cores	no data	4
Low Power Efficient-cores	no data	4
Threads	16	8
Base clock speed	3.3 GHz	2.1 GHz
Boost clock speed	4.9 GHz	4.7 GHz
Bus rate	8 GT/s	37 MHz
L1 cache	80K (per core)	192 KB (per core)
L2 cache	1.25 MB (per core)	2.5 MB (per core)
L3 cache	24 MB (shared)	8 MB (shared)
Chip lithography	10 nm SuperFin	3 nm
Die size	190 mm2	no data
Maximum core temperature	100 °C	100 °C
Maximum case temperature (TCase)	72 °C	no data
64 bit support	+	+
Windows 11 compatibility	-	no data
Unlocked multiplier	+	-

Compatibility

Information on Core i9-11900KB and Core Ultra 5 238V compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1	1
Socket	FCBGA1787	FCBGA2833
Power consumption (TDP)	65 Watt	17 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-11900KB and Core Ultra 5 238V. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+	+
AVX	+	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	+	+
Hyper-Threading Technology	+	-
TSX	-	+
Idle States	+	no data
Thermal Monitoring	+	+
Flex Memory Access	+	no data
Turbo Boost Max 3.0	+	-
Deep Learning Boost	+	+
Supported AI Software Frameworks	-	OpenVINO™, WindowsML, DirectML, ONNX RT, WebNN

Security technologies

Core i9-11900KB and Core Ultra 5 238V technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	+	+
Identity Protection	+	-
SGX	Yes with Intel® ME	no data
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-11900KB and Core Ultra 5 238V are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-11900KB and Core Ultra 5 238V. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR5
Maximum memory size	128 GB	32 GB
Max memory channels	2	2
Maximum memory bandwidth	51.2 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel UHD Graphics for 11th Gen Intel Processors	Intel Arc Graphics 130V
Quick Sync Video	+	+
Graphics max frequency	1.45 GHz	1.85 GHz
Execution Units	32	no data

Graphics interfaces

Available interfaces and connections of Core i9-11900KB and Core Ultra 5 238V integrated GPUs.

Number of displays supported

4

3

Graphics image quality

Maximum display resolutions supported by Core i9-11900KB and Core Ultra 5 238V integrated GPUs, including resolutions over different interfaces.

4K resolution support	+	no data
Max resolution over HDMI 1.4	4096x2304@60Hz	4096 x 2304 @ 60Hz (HDMI 2.1 TMDS) 7680 x 4320 @ 60Hz (HDMI2.1 FRL)
Max resolution over eDP	4096 x 2304@60Hz	3840x2400 @ 120Hz
Max resolution over DisplayPort	7680x4320@60Hz	7680 x 4320 @ 60Hz

Graphics API support

APIs supported by Core i9-11900KB and Core Ultra 5 238V integrated GPUs, sometimes API versions are included.

DirectX	12	12.2
OpenGL	4.6	4.6

Peripherals

Specifications and connection of peripherals supported by Core i9-11900KB and Core Ultra 5 238V.

PCIe version	4.0	5.0
PCI Express lanes	20	4
PCI support	no data	5.0 and 4.0

Pros & cons summary

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Performance score	14.42	14.05
Integrated graphics card	5.58	11.64
Threads	16	8
Chip lithography	10 nm	3 nm
Power consumption (TDP)	65 Watt	17 Watt

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Should you still have questions on choice between Core i9-11900KB and Core Ultra 5 238V, ask them in Comments section, and we shall answer.

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