i9-11900KF vs i7-2655QM

Primary details

Comparing Core i7-2655QM and Core i9-11900KF processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	426
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Intel Core i7	no data
Power efficiency	no data	11.92
Architecture codename	Sandy Bridge (2011−2013)	Rocket Lake (2021)
Release date	4 September 2011 (13 years ago)	16 March 2021 (3 years ago)

Detailed specifications

Core i7-2655QM and Core i9-11900KF 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	4 (Quad-Core)	8 (Octa-Core)
Threads	8	16
Base clock speed	no data	3.5 GHz
Boost clock speed	2.1 GHz	5.2 GHz
Bus type	DMI 2.0	no data
Bus rate	4 × 5 GT/s	8 GT/s
Multiplier	21	no data
L1 cache	256 KB	64K (per core)
L2 cache	1 MB	256K (per core)
L3 cache	6 MB	16 MB (shared)
Chip lithography	32 nm	14 nm
Die size	216 mm2	no data
Maximum core temperature	no data	100 °C
Maximum case temperature (TCase)	no data	72 °C
Number of transistors	1160 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	-	+

Compatibility

Information on Core i7-2655QM and Core i9-11900KF 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 (Uniprocessor)	1
Socket	no data	FCLGA1200
Power consumption (TDP)	45 Watt	125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-2655QM and Core i9-11900KF. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
FMA	+	-
AVX	+	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	no data	2.0
Hyper-Threading Technology	no data	+
TSX	-	+
Idle States	no data	+
Thermal Monitoring	-	+
Turbo Boost Max 3.0	no data	+
Deep Learning Boost	-	+

Security technologies

Core i7-2655QM and Core i9-11900KF technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	no data	+
Secure Key	no data	+
Identity Protection	-	+
SGX	no data	-
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-2655QM and Core i9-11900KF are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	no data	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-2655QM and Core i9-11900KF. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	no data	DDR4-3200
Maximum memory size	16 GB	128 GB
Max memory channels	no data	2
Maximum memory bandwidth	21.335 GB/s	50 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

Intel HD Graphics 3000

no data

Peripherals

Specifications and connection of peripherals supported by Core i7-2655QM and Core i9-11900KF.

PCIe version	no data	4.0
PCI Express lanes	no data	20

Pros & cons summary

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Recency	4 September 2011	16 March 2021
Physical cores	4	8
Threads	8	16
Chip lithography	32 nm	14 nm
Power consumption (TDP)	45 Watt	125 Watt

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