Xeon Gold 6338T vs Gold 6138P

Primary details

Comparing Xeon Gold 6138P and Xeon Gold 6338T processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Server	Server
Series	Intel Xeon Gold	no data
Architecture codename	Skylake (server) (2017−2019)	Ice Lake-SP (2021)
Release date	16 May 2018 (6 years ago)	6 April 2021 (3 years ago)
Launch price (MSRP)	$4,937	no data

Detailed specifications

Xeon Gold 6138P and Xeon Gold 6338T 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	20 (Icosa-Core)	24 (Tetracosa-Core)
Threads	40	48
Base clock speed	2 GHz	2.1 GHz
Boost clock speed	3.7 GHz	3.4 GHz
Bus type	DMI 3.0	no data
Bus rate	4 × 8 GT/s	no data
Multiplier	20	no data
L1 cache	1.25 MB	64K (per core)
L2 cache	20 MB	1 MB (per core)
L3 cache	27.5 MB	36 MB (shared)
Chip lithography	14 nm	10 nm
Maximum case temperature (TCase)	no data	87 °C
64 bit support	+	+
Windows 11 compatibility	+	+

Compatibility

Information on Xeon Gold 6138P and Xeon Gold 6338T 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 (Multiprocessor)	2
Socket	FCLGA3647	FCLGA4189
Power consumption (TDP)	195 Watt	165 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Gold 6138P and Xeon Gold 6338T. You'll probably need this information if you require some particular technology.

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

Security technologies

Xeon Gold 6138P and Xeon Gold 6338T technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
SGX	no data	Yes with Intel® SPS

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon Gold 6138P and Xeon Gold 6338T are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon Gold 6138P and Xeon Gold 6338T. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR4-3200
Maximum memory size	768 GB	6 TB
Max memory channels	6	8
Maximum memory bandwidth	128.001 GB/s	no data
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by Xeon Gold 6138P and Xeon Gold 6338T.

PCIe version	3.0	4.0
PCI Express lanes	48	64

Pros & cons summary

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Recency	16 May 2018	6 April 2021
Physical cores	20	24
Threads	40	48
Chip lithography	14 nm	10 nm
Power consumption (TDP)	195 Watt	165 Watt

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