Xeon w7-3455 vs i7-840QM

Primary details

Comparing Core i7-840QM and Xeon w7-3455 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2304	91
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	41.22
Market segment	Laptop	Server
Series	Intel Core i7	no data
Power efficiency	2.59	12.89
Architecture codename	Clarksfield (2009−2010)	Sapphire Rapids (2023−2024)
Release date	22 June 2010 (14 years ago)	15 February 2023 (1 year ago)
Launch price (MSRP)	$568	$2,489

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-840QM and Xeon w7-3455 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)	24 (Tetracosa-Core)
Threads	8	48
Base clock speed	1.86 GHz	2.5 GHz
Boost clock speed	3.2 GHz	4.8 GHz
Bus type	DMI 1.0	no data
Bus rate	2.5 GT/s	no data
Multiplier	14	no data
L1 cache	256 KB	80 KB (per core)
L2 cache	1 MB	2 MB (per core)
L3 cache	8 MB (shared)	67.5 MB
Chip lithography	45 nm	Intel 7 nm
Die size	296 mm2	4x 477 mm2
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	no data	72 °C
Number of transistors	774 million	no data
64 bit support	+	+
Windows 11 compatibility	-	+

Compatibility

Information on Core i7-840QM and Xeon w7-3455 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	FCPGA988,PGA988	FCLGA4677
Power consumption (TDP)	45 Watt	270 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-840QM and Xeon w7-3455. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	Intel® SSE4.1, Intel® AMX, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
AES-NI	-	+
AVX	-	+
vPro	+	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	+	2.0
Hyper-Threading Technology	+	+
TSX	-	+
Idle States	+	no data
Thermal Monitoring	+	-
PAE	36 Bit	no data
Turbo Boost Max 3.0	no data	+
Deep Learning Boost	-	+

Security technologies

Core i7-840QM and Xeon w7-3455 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
SGX	no data	-
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-840QM and Xeon w7-3455 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-840QM and Xeon w7-3455. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR5-4800
Maximum memory size	8 GB	4 TB
Max memory channels	2	8
Maximum memory bandwidth	21.335 GB/s	no data
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

None

N/A

Peripherals

Specifications and connection of peripherals supported by Core i7-840QM and Xeon w7-3455.

PCIe version	2	5.0
PCI Express lanes	16	112

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

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Pros & cons summary

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Performance score	1.28	38.16
Recency	22 June 2010	15 February 2023
Physical cores	4	24
Threads	8	48
Power consumption (TDP)	45 Watt	270 Watt

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Should you still have questions on choice between Core i7-840QM and Xeon w7-3455, ask them in Comments section, and we shall answer.

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