Intel Xeon Gold 5403N: specs and benchmarks

Summary

Intel started Xeon Gold 5403N sales 1 October 2023. This is desktop processor primarily aimed at professional systems. It has 12 cores and 24 threads, and is based on Intel 7 manufacturing technology, with a maximum frequency of 3900 MHz and a locked multiplier.

Compatibility-wise, this is FCLGA4677 processor with a TDP of 115 Watt. It supports DDR5-4000 memory.

Primary details

Xeon Gold 5403N processor market type (desktop or notebook), architecture, sales start time and pricing.

Place in the ranking	not rated
Place by popularity	not in top-100
Market segment	Server
Release date	1 October 2023 (1 year ago)

Detailed specifications

Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.

Physical cores	12 (Dodeca-Core)
Threads	24
Base clock speed	2 GHz	of 4.7 GHz (Ryzen 9 7900X)
Boost clock speed	3.9 GHz	of 6.2 GHz (Core i9-14900KS)
L3 cache	22.5 MB	of 1152 MB (EPYC 9684X)
Chip lithography	Intel 7 nm	of 3 nm (Core Ultra 9 285K)
Maximum core temperature	85 °C	of 110 °C (Core Ultra 9 185H)
64 bit support	-

Compatibility

Information on Xeon Gold 5403N compatibility with other computer components and devices: 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.

Socket	FCLGA4677
Power consumption (TDP)	115 Watt	of 3100 ‑ 4500 (Ryzen 7 7435H)

Technologies and extensions

Technological capabilities and additional instructions supported by Xeon Gold 5403N. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2, Intel® AVX2, Intel® AVX-512, Intel® AVX
AES-NI	+
Speed Shift	+
Turbo Boost Technology	2.0
Hyper-Threading Technology	+
TSX	+
Deep Learning Boost	+

Security technologies

Processor technologies aimed at improving security, for example, by protecting against hacks.

TXT	+
EDB	+
SGX	Yes with Intel® SPS
OS Guard	+

Virtualization technologies

Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.

VT-d	+
VT-x	+
EPT	+

Memory specs

Types, maximum amount and channel number of RAM supported by Xeon Gold 5403N's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory types	DDR5-4000
Maximum memory size	4 TB	of 6 TiB (EPYC 9654)
Max memory channels	8	of 12 (Xeon Platinum 9221)
ECC memory support	+

Peripherals

Specifications and connection types of supported peripherals.

PCIe version	4	of 5.0 (EPYC 9655P)
PCI Express lanes	48	of 128 (EPYC 9655P)

Benchmark performance

Single-core and multi-core benchmark results of Xeon Gold 5403N. Overall benchmark performance is measured in points in 0-100 range, higher is better.

---

---