Xeon Gold 6438N vs E5-2640 v3

Primary details

Comparing Xeon E5-2640 v3 and Xeon Gold 6438N processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	998	117
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	25.59
Market segment	Server	Server
Power efficiency	7.37	15.35
Architecture codename	Haswell-EP (2014−2015)	Sapphire Rapids (2023−2024)
Release date	8 September 2014 (10 years ago)	10 January 2023 (1 year ago)
Launch price (MSRP)	no data	$3,351

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon E5-2640 v3 and Xeon Gold 6438N 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)	32 (Dotriaconta-Core)
Threads	16	64
Base clock speed	2.6 GHz	2 GHz
Boost clock speed	3.4 GHz	3.6 GHz
Bus rate	8 GT/s	no data
L1 cache	64K (per core)	80K (per core)
L2 cache	256K (per core)	2 MB (per core)
L3 cache	20 MB (shared)	60 MB
Chip lithography	22 nm	Intel 7 nm
Die size	356 mm2	no data
Maximum core temperature	74 °C	no data
Maximum case temperature (TCase)	no data	85 °C
Number of transistors	2,600 million	no data
64 bit support	+	+
Windows 11 compatibility	-	no data

Compatibility

Information on Xeon E5-2640 v3 and Xeon Gold 6438N 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	2	2
Socket	FCLGA2011	FCLGA4677
Power consumption (TDP)	90 Watt	205 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2640 v3 and Xeon Gold 6438N. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX2	Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
AVX	+	+
vPro	+	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	-	+
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	-	no data
Demand Based Switching	+	no data
PAE	46 Bit	no data
Deep Learning Boost	-	+

Security technologies

Xeon E5-2640 v3 and Xeon Gold 6438N technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
Secure Key	+	no data
SGX	no data	Yes with Intel® SPS
OS Guard	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-2640 v3 and Xeon Gold 6438N are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2640 v3 and Xeon Gold 6438N. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-1600, DDR4-1866	DDR5-4800, DDR5-4400
Maximum memory size	768 GB	4 TB
Max memory channels	4	8
Maximum memory bandwidth	59 GB/s	no data
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by Xeon E5-2640 v3 and Xeon Gold 6438N.

PCIe version	3.0	5
PCI Express lanes	40	80

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	7.14	33.87
Recency	8 September 2014	10 January 2023
Physical cores	8	32
Threads	16	64
Power consumption (TDP)	90 Watt	205 Watt

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Should you still have questions on choice between Xeon E5-2640 v3 and Xeon Gold 6438N, ask them in Comments section, and we shall answer.

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