EPYC 9745 vs Xeon W-11855M

Primary details

Comparing Xeon W-11855M and EPYC 9745 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	680	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Server	Server
Series	Intel Tiger Lake	no data
Power efficiency	30.88	no data
Architecture codename	Tiger Lake-H (2021)	Turin (2024)
Release date	11 May 2021 (3 years ago)	10 October 2024 (less than a year ago)
Launch price (MSRP)	no data	$12,141

Detailed specifications

Xeon W-11855M and EPYC 9745 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	6 (Hexa-Core)	128
Threads	12	256
Base clock speed	3.2 GHz	2.4 GHz
Boost clock speed	4.9 GHz	3.7 GHz
Bus rate	8 GT/s	no data
L1 cache	96K (per core)	80 KB (per core)
L2 cache	1.25 MB (per core)	1 MB (per core)
L3 cache	18 MB (shared)	256 MB (shared)
Chip lithography	10 nm SuperFin	3 nm
Maximum core temperature	100 °C	no data
Maximum case temperature (TCase)	72 °C	no data
64 bit support	+	+
Windows 11 compatibility	+	no data

Compatibility

Information on Xeon W-11855M and EPYC 9745 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	2
Socket	FCBGA1787	SP5
Power consumption (TDP)	35 Watt	400 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon W-11855M and EPYC 9745. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512	no data
AES-NI	+	+
FMA	+	-
AVX	+	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data
Speed Shift	+	no data
Hyper-Threading Technology	+	no data
TSX	+	-
Thermal Monitoring	+	-
Flex Memory Access	+	no data
SIPP	+	-
Turbo Boost Max 3.0	+	no data
Precision Boost 2	no data	+
Deep Learning Boost	+	-

Security technologies

Xeon W-11855M and EPYC 9745 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
Secure Key	+	no data
SGX	-	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon W-11855M and EPYC 9745 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon W-11855M and EPYC 9745. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4	DDR5
Maximum memory size	128 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	51.2 GB/s	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® UHD Graphics for 11th Gen Intel® Processors	N/A
Quick Sync Video	+	-
Graphics max frequency	1.45 GHz	no data
Execution Units	32	no data

Graphics interfaces

Available interfaces and connections of Xeon W-11855M and EPYC 9745 integrated GPUs.

Number of displays supported

4

no data

Graphics image quality

Maximum display resolutions supported by Xeon W-11855M and EPYC 9745 integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	4096x2304@60Hz	no data
Max resolution over eDP	4096x2304@60Hz	no data
Max resolution over DisplayPort	7680x4320@60Hz	no data

Graphics API support

APIs supported by Xeon W-11855M and EPYC 9745 integrated GPUs, sometimes API versions are included.

DirectX	12.1	no data
OpenGL	4.6	no data

Peripherals

Specifications and connection of peripherals supported by Xeon W-11855M and EPYC 9745.

PCIe version	4.0	5.0
PCI Express lanes	20	128

Pros & cons summary

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Recency	11 May 2021	10 October 2024
Physical cores	6	128
Threads	12	256
Chip lithography	10 nm	3 nm
Power consumption (TDP)	35 Watt	400 Watt

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