AMD EPYC 7663 vs AMD EPYC 7343

Comparative analysis of AMD EPYC 7663 and AMD EPYC 7343 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 7343

Differences

Reasons to consider the AMD EPYC 7663

40 more cores, run more applications at once: 56 vs 16
80 more threads: 112 vs 32
3.5x more L1 cache, more data can be stored in the L1 cache for quick access later
3.5x more L2 cache, more data can be stored in the L2 cache for quick access later
2x more L3 cache, more data can be stored in the L3 cache for quick access later
Around 12% better performance in PassMark - CPU mark: 82883 vs 73934

Specifications (specs)
Number of cores	56 vs 16
Number of threads	112 vs 32
L1 cache	64 KB (per core) vs 1 MB
L2 cache	512 KB (per core) vs 8 MB
L3 cache	256 MB (shared) vs 128 MB
Benchmarks
PassMark - CPU mark	82883 vs 73934

Reasons to consider the AMD EPYC 7343

Around 11% higher clock speed: 3.9 GHz vs 3.5 GHz
Around 26% lower typical power consumption: 190 Watt vs 240 Watt
Around 7% better performance in PassMark - Single thread mark: 2806 vs 2616

Specifications (specs)
Maximum frequency	3.9 GHz vs 3.5 GHz
Thermal Design Power (TDP)	190 Watt vs 240 Watt
Benchmarks
PassMark - Single thread mark	2806 vs 2616

Compare benchmarks

CPU 1: AMD EPYC 7663
CPU 2: AMD EPYC 7343

PassMark - Single thread mark

CPU 1

CPU 2

2616

2806

PassMark - CPU mark

CPU 1

CPU 2

82883

73934

Name	AMD EPYC 7663	AMD EPYC 7343
PassMark - Single thread mark	2616	2806
PassMark - CPU mark	82883	73934

Compare specifications (specs)

	AMD EPYC 7663	AMD EPYC 7343
Essentials
Launch date	15 Mar 2021	15 Mar 2021
Launch price (MSRP)	$6366	$1565
Place in performance rating	91	103
Architecture codename		Zen 3
OPN PIB		100-100000338WOF
OPN Tray		100-000000338
Vertical segment		Server
Performance
Base frequency	2000 MHz	3.2 GHz
Die size	8x 81 mm²
L1 cache	64 KB (per core)	1 MB
L2 cache	512 KB (per core)	8 MB
L3 cache	256 MB (shared)	128 MB
Manufacturing process technology	7 nm	7 nm+
Maximum frequency	3.5 GHz	3.9 GHz
Number of cores	56	16
Number of threads	112	32
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	165-200 Watt
Max number of CPUs in a configuration	2
Sockets supported	SP3	SP3
Thermal Design Power (TDP)	240 Watt	190 Watt
Socket Count		1P/2P
Peripherals
PCIe configurations	Gen 4, 128 Lanes, (CPU only)
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™)