Xeon w7-3455 vs Core i7-3820

Primary details

Comparing Core i7-3820 and Xeon w7-3455 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1405	85
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	2.32	no data
Market segment	Desktop processor	Server
Architecture codename	Sandy Bridge-E (2011−2013)	Sapphire Rapids
Release date	February 2012 (12 years ago)	1 January 2023 (1 year ago)
Launch price (MSRP)	$400	no data
Current price	$310 (0.8x MSRP)	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i7-3820 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	3.6 GHz	2.5 GHz
Boost clock speed	3.8 GHz	4.8 GHz
L1 cache	64 KB (per core)	80K (per core)
L2 cache	256 KB (per core)	2 MB (per core)
L3 cache	10240 KB (shared)	67.5 MB
Chip lithography	32 nm	Intel 7 nm
Die size	294 mm2	4x 477 mm2
Maximum core temperature	67 °C	72 °C
Maximum case temperature (TCase)	67 °C	72 °C
Number of transistors	1270 million	no data
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	No	No

Compatibility

Information on Core i7-3820 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	1
Socket	FCLGA2011	FCLGA4677
Power consumption (TDP)	130 Watt	270 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-3820 and Xeon w7-3455. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2, Intel® AVX	Intel® SSE4.1, Intel® AMX, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
AVX	+	+
vPro	no data	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	no data	+
Idle States	+	no data
Thermal Monitoring	+	no data
Smart Response	+	no data
Demand Based Switching	-	no data
Turbo Boost Max 3.0	no data	+
Status	Discontinued	Launched

Security technologies

Core i7-3820 and Xeon w7-3455 technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-3820 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 i7-3820 and Xeon w7-3455. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR5-4800
Maximum memory size	64.23 GB	4 TB
Max memory channels	4	8
Maximum memory bandwidth	51.2 GB/s	no data
ECC memory support	-	+

Peripherals

Specifications and connection of peripherals supported by Core i7-3820 and Xeon w7-3455.

PCIe version	2.0	5.0
PCI Express lanes	40	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.

Xeon w7-3455 outperforms Core i7-3820 by 894% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	3.72	36.96
Physical cores	4	24
Threads	8	48
Power consumption (TDP)	130 Watt	270 Watt

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Should you still have questions on choice between Core i7-3820 and Xeon w7-3455, ask them in Comments section, and we shall answer.

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