AMD EPYC 7763 vs AMD EPYC 7643

Comparative analysis of AMD EPYC 7763 and AMD EPYC 7643 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark.

AMD EPYC 7763

AMD EPYC 7643

Differences

Reasons to consider the AMD EPYC 7763

16 more cores, run more applications at once: 64 vs 48
32 more threads: 128 vs 96
Around 33% more L1 cache; more data can be stored in the L1 cache for quick access later
Around 33% more L2 cache; more data can be stored in the L2 cache for quick access later

Number of cores	64 vs 48
Number of threads	128 vs 96
L1 cache	4 MB vs 3 MB
L2 cache	32 MB vs 24 MB

Reasons to consider the AMD EPYC 7643

Around 3% higher clock speed: 3.6 GHz vs 3.5 GHz
Around 17% lower typical power consumption: 240 Watt vs 280 Watt
Around 7% better performance in PassMark - Single thread mark: 2689 vs 2509

Specifications (specs)
Maximum frequency	3.6 GHz vs 3.5 GHz
Thermal Design Power (TDP)	240 Watt vs 280 Watt
Benchmarks
PassMark - Single thread mark	2689 vs 2509
PassMark - CPU mark	115676 vs 115666

Compare benchmarks

CPU 1: AMD EPYC 7763
CPU 2: AMD EPYC 7643

PassMark - Single thread mark

CPU 1

CPU 2

2509

2689

PassMark - CPU mark

CPU 1

CPU 2

115666

115676

Name	AMD EPYC 7763	AMD EPYC 7643
PassMark - Single thread mark	2509	2689
PassMark - CPU mark	115666	115676

Compare specifications (specs)

	AMD EPYC 7763	AMD EPYC 7643
Essentials
Architecture codename	Zen 3	Zen 3
Launch date	15 Mar 2021	15 Mar 2021
Launch price (MSRP)	$7890	$4995
OPN PIB	100-100000312WOF	100-100000326WOF
OPN Tray	100-000000312	100-000000326
Place in performance rating	31	22
Vertical segment	Server	Server
Performance
Base frequency	2.45 GHz	2.3 GHz
L1 cache	4 MB	3 MB
L2 cache	32 MB	24 MB
L3 cache	256 MB	256 MB
Manufacturing process technology	7 nm+	7 nm+
Maximum frequency	3.5 GHz	3.6 GHz
Number of cores	64	48
Number of threads	128	96
Unlocked
Memory
ECC memory support
Max memory channels	8	8
Maximum memory bandwidth	190.73 GB/s	190.73 GB/s
Maximum memory size	4 TB	4 TB
Supported memory types	DDR4-3200	DDR4-3200
Compatibility
Configurable TDP	225-280 Watt	225-240 Watt
Socket Count	1P/2P	1P/2P
Sockets supported	SP3	SP3
Thermal Design Power (TDP)	280 Watt	240 Watt
Peripherals
Max number of PCIe lanes	128	128
PCI Express revision	4.0	4.0
Advanced Technologies
AMD SenseMI
Fused Multiply-Add 3 (FMA3)
Intel® Advanced Vector Extensions (AVX)
Intel® Advanced Vector Extensions 2 (AVX2)
Intel® AES New Instructions
Virtualization
AMD Virtualization (AMD-V™)