Xeon Silver 4509Y vs EPYC 7443

Primary details

Comparing EPYC 7443 and Xeon Silver 4509Y processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	105	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	15.95	no data
Market segment	Server	Server
Series	AMD EPYC	no data
Power efficiency	16.86	no data
Architecture codename	Milan (2021−2023)	Sapphire Rapids (2023−2024)
Release date	12 January 2021 (3 years ago)	14 December 2023 (1 year ago)
Launch price (MSRP)	$2,010	$563

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

EPYC 7443 and Xeon Silver 4509Y 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	24 (Tetracosa-Core)	8 (Octa-Core)
Threads	48	16
Base clock speed	2.85 GHz	2.6 GHz
Boost clock speed	4 GHz	4.1 GHz
Multiplier	28.5	no data
L1 cache	1536 KB	80 KB (per core)
L2 cache	12 MB	2 MB (per core)
L3 cache	128 MB (shared)	22.5 MB (shared)
Chip lithography	7 nm+	Intel 7 nm
Die size	4x 81 mm2	no data
Maximum case temperature (TCase)	no data	84 °C
Number of transistors	16,600 million	no data
64 bit support	+	+
Windows 11 compatibility	+	no data

Compatibility

Information on EPYC 7443 and Xeon Silver 4509Y 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	SP3	FCLGA4677
Power consumption (TDP)	200 Watt	125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7443 and Xeon Silver 4509Y. You'll probably need this information if you require some particular technology.

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

Security technologies

EPYC 7443 and Xeon Silver 4509Y technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 7443 and Xeon Silver 4509Y 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 EPYC 7443 and Xeon Silver 4509Y. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-3200	DDR5 @ 4400 MT/s (1 DPC &2DPC)
Maximum memory size	4 TiB	4 TB
Max memory channels	no data	8
Maximum memory bandwidth	204.795 GB/s	no data
ECC memory support	-	+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

N/A

N/A

Peripherals

Specifications and connection of peripherals supported by EPYC 7443 and Xeon Silver 4509Y.

PCIe version	4.0	5
PCI Express lanes	128	80

Pros & cons summary

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Recency	12 January 2021	14 December 2023
Physical cores	24	8
Threads	48	16
Power consumption (TDP)	200 Watt	125 Watt

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Should you still have questions on choice between EPYC 7443 and Xeon Silver 4509Y, ask them in Comments section, and we shall answer.

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