AMD EPYC 7663 vs AMD EPYC 7662

Comparative analysis of AMD EPYC 7663 and AMD EPYC 7662 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 7663

AMD EPYC 7662

Differences

Reasons to consider the AMD EPYC 7663

CPU is newer: launch date 1 year(s) 0 month(s) later
Around 6% higher clock speed: 3.5 GHz vs 3.3 GHz
Around 25% better performance in PassMark - Single thread mark: 2606 vs 2089

Specifications (specs)
Launch date	15 Mar 2021 vs 19 Feb 2020
Maximum frequency	3.5 GHz vs 3.3 GHz
Benchmarks
PassMark - Single thread mark	2606 vs 2089

Reasons to consider the AMD EPYC 7662

8 more cores, run more applications at once: 64 vs 56
16 more threads: 128 vs 112
Around 14% more L1 cache; more data can be stored in the L1 cache for quick access later
Around 14% more L2 cache; more data can be stored in the L2 cache for quick access later
Around 7% lower typical power consumption: 225 Watt vs 240 Watt
Around 18% better performance in PassMark - CPU mark: 97178 vs 82087

Specifications (specs)
Number of cores	64 vs 56
Number of threads	128 vs 112
L1 cache	4 MB vs 64 KB (per core)
L2 cache	32 MB vs 512 KB (per core)
Thermal Design Power (TDP)	225 Watt vs 240 Watt
Benchmarks
PassMark - CPU mark	97178 vs 82087

Compare benchmarks

CPU 1: AMD EPYC 7663
CPU 2: AMD EPYC 7662

PassMark - Single thread mark

CPU 1

CPU 2

2606

2089

PassMark - CPU mark

CPU 1

CPU 2

82087

97178

Name	AMD EPYC 7663	AMD EPYC 7662
PassMark - Single thread mark	2606	2089
PassMark - CPU mark	82087	97178

Compare specifications (specs)

	AMD EPYC 7663	AMD EPYC 7662
Essentials
Launch date	15 Mar 2021	19 Feb 2020
Launch price (MSRP)	$6366
Place in performance rating	119	129
Architecture codename		Zen 3
OPN PIB		100-100000137WOF
OPN Tray		100-000000137
Vertical segment		Server
Performance
Base frequency	2000 MHz	2.0 GHz
Die size	8x 81 mm²
L1 cache	64 KB (per core)	4 MB
L2 cache	512 KB (per core)	32 MB
L3 cache	256 MB (shared)	256 MB
Manufacturing process technology	7 nm	7 nm, 14 nm
Maximum frequency	3.5 GHz	3.3 GHz
Number of cores	56	64
Number of threads	112	128
Transistor count	33,200 million
Unlocked
Memory
ECC memory support
Supported memory types	DDR4	DDR4-3200
Max memory channels		8
Maximum memory bandwidth		190.73 GB/s
Maximum memory size		4 TB
Compatibility
Configurable TDP	225 Watt
Max number of CPUs in a configuration	2
Sockets supported	SP3	SP3
Thermal Design Power (TDP)	240 Watt	225 Watt
Socket Count		1P/2P
Peripherals
PCIe configurations	Gen 4, 128 Lanes, (CPU only)	x16, x8
Max number of PCIe lanes		128
PCI Express revision		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™)