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EPYC 7443
General Info
Designer	AMD
Manufacturer	TSMC, GlobalFoundries
Model Number	7443
Part Number	100-000000340, 100-100000340WOF
Market	Server
Introduction	January 12, 2021 (announced) March 15, 2021 (launched)
Release Price	$2,010
Shop	Amazon
General Specs
Family	EPYC
Series	7003
Locked	Yes
Frequency	2,850 MHz
Turbo Frequency	4,000 MHz
Clock multiplier	28.5
Microarchitecture
ISA	x86-64 (x86)
Microarchitecture	Zen 3
Core Name	Milan
Core Family	25
Core Model	1
Core Stepping	B1
Process	7 nm+
Technology	CMOS
MCP	Yes (5 dies)
Word Size	64 bit
Cores	24
Threads	48
Max Memory	4 TiB
Multiprocessing
Max SMP	2-Way (Multiprocessor)
Electrical
TDP	200 W
cTDP down	165 W
Packaging
Package	SP3, FCLGA-4094 (FC-OLGA)
Dimension	75.4 mm × 58.5 mm × 6.26 mm
Pitch	0.87 mm × 1 mm
Contacts	4094
Socket	SP3, LGA-4094

EPYC 7443 is a 64-bit 24-core x86 server microprocessor designed and introduced by AMD in March 2021. This multi-chip processor, which is based on the Zen 3 microarchitecture, incorporates four Core Complex Dies fabricated on a TSMC advanced 7 nm process and a large I/O die manufactured by GlobalFoundries. The 7443 has a TDP of 200 W with a base frequency of 2.85 MHz and a boost frequency of up to 4 MHz. This processor supports up to two-way SMP and up to 4 TiB of eight channel DDR4-3200 memory per socket.

Cache

Main article: Zen 3 § Cache

[Edit/Modify Cache Info]

Cache Organization Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory. The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC. Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies. Note: All units are in kibibytes and mebibytes.

L1$ 1536 KiB 1,572,864 B 1.5 MiB L1I$ 768 KiB 786,432 B 0.75 MiB 24 × 32 KiB 8-way set associative   L1D$ 768 KiB 786,432 B 0.75 MiB 24 × 32 KiB 8-way set associative write-back L2$ 12 MiB 12,288 KiB 12,582,912 B 0.0117 GiB     24 × 512 KiB 8-way set associative write-back L3$ 128 MiB 131,072 KiB 134,217,728 B 0.125 GiB     4 × 32 MiB

Memory controller

Main article: Milan § Memory Interface

[Edit/Modify Memory Info]

	Integrated Memory Controller
	Max Type DDR4-3200 Supports ECC Yes Max Mem 4 TiB Controllers 8 Channels 8 Max Bandwidth 190.73 GiB/s 195,307.52 MiB/s 204.795 GB/s 204,794.778 MB/s 0.186 TiB/s 0.205 TB/s Bandwidth Single 23.84 GiB/s Double 47.68 GiB/s Quad 95.37 GiB/s Hexa 143.05 GiB/s Octa 190.73 GiB/s

Expansions

Main article: Milan § I/O Interfaces

[Edit/Modify Expansions Info]

	Expansion Options
PCIe Revision: 4.0 Max Lanes: 128 SATA Revision: 3.0 Max Ports: 32 USB Revision: 3.1 Max Ports: 4

Features

[Edit/Modify Supported Features]

Supported x86 Extensions & Processor Features

MMX MMX Extension EMMX Extended MMX Extension SSE Streaming SIMD Extensions SSE2 Streaming SIMD Extensions 2 SSE3 Streaming SIMD Extensions 3 SSSE3 Supplemental SSE3 SSE4.1 Streaming SIMD Extensions 4.1 SSE4.2 Streaming SIMD Extensions 4.2 SSE4a Streaming SIMD Extensions 4a AVX Advanced Vector Extensions AVX2 Advanced Vector Extensions 2 ABM Advanced Bit Manipulation BMI1 Bit Manipulation Instruction Set 1 BMI2 Bit Manipulation Instruction Set 2 FMA3 3-Operand Fused-Multiply-Add AES AES Encryption Instructions RdRand Hardware RNG SHA SHA Extensions ADX Multi-Precision Add-Carry CLMUL Carry-less Multiplication Extension F16C 16-bit Floating Point Conversion x86-16 16-bit x86 x86-32 32-bit x86 x86-64 64-bit x86 Real Real Mode Protected Protected Mode SMM System Management Mode FPU Integrated x87 FPU NX No-eXecute SMT Simultaneous Multithreading AMD-Vi AMD-Vi (I/O MMU virtualization) AMD-V AMD Virtualization SME Secure Memory Encryption TSME Transparent SME SEV Secure Encrypted Virtualization SenseMI SenseMI Technology

References

• "AMD EPYC™ 7003 Series CPUs Set New Standard as Highest Performance Server Processor" (Press release). AMD.com. March 15, 2021. Retrieved May 2021.
• "AMD EPYC™ 7003 Series Processors: The New Standard for the Modern Datacenter", AMD Publ. #LE-77202, Rev. 00, February 2021
• "AMD Processor Specifications". AMD.com. Retrieved May 2021.
• "AMD EPYC™ 7443". AMD.com. Retrieved May 2021.