Intel Xeon Gold 6438Y+ vs AMD EPYC 7643

Comparative analysis of Intel Xeon Gold 6438Y+ 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.

Intel Xeon Gold 6438Y+

AMD EPYC 7643

Differences

Reasons to consider the Intel Xeon Gold 6438Y+

CPU is newer: launch date 1 year(s) 9 month(s) later
Around 11% higher clock speed: 4 GHz vs 3.6 GHz
Around 17% lower typical power consumption: 205 Watt vs 240 Watt
Around 22% better performance in PassMark - Single thread mark: 3276 vs 2689

Specifications (specs)
Launch date	10 Jan 2023 vs 15 Mar 2021
Maximum frequency	4 GHz vs 3.6 GHz
Thermal Design Power (TDP)	205 Watt vs 240 Watt
Benchmarks
PassMark - Single thread mark	3276 vs 2689

Reasons to consider the AMD EPYC 7643

16 more cores, run more applications at once: 48 vs 32
32 more threads: 96 vs 64
A newer manufacturing process allows for a more powerful, yet cooler running processor: 7 nm+ vs 10 nm
Around 20% more L1 cache; more data can be stored in the L1 cache for quick access later
393216x more L2 cache, more data can be stored in the L2 cache for quick access later
4473924.3x more L3 cache, more data can be stored in the L3 cache for quick access later
Around 24% better performance in PassMark - CPU mark: 115676 vs 93209

Specifications (specs)
Number of cores	48 vs 32
Number of threads	96 vs 64
Manufacturing process technology	7 nm+ vs 10 nm
L1 cache	3 MB vs 80K (per core)
L2 cache	24 MB vs 2MB (per core)
L3 cache	256 MB vs 60MB
Benchmarks
PassMark - CPU mark	115676 vs 93209

Compare benchmarks

CPU 1: Intel Xeon Gold 6438Y+
CPU 2: AMD EPYC 7643

PassMark - Single thread mark

CPU 1

CPU 2

3276

2689

PassMark - CPU mark

CPU 1

CPU 2

93209

115676

Name	Intel Xeon Gold 6438Y+	AMD EPYC 7643
PassMark - Single thread mark	3276	2689
PassMark - CPU mark	93209	115676

Compare specifications (specs)

	Intel Xeon Gold 6438Y+	AMD EPYC 7643
Essentials
Launch date	10 Jan 2023	15 Mar 2021
Launch price (MSRP)	$3141	$4995
Place in performance rating	25	22
Architecture codename		Zen 3
OPN PIB		100-100000326WOF
OPN Tray		100-000000326
Vertical segment		Server
Performance
Base frequency	2000 MHz	2.3 GHz
L1 cache	80K (per core)	3 MB
L2 cache	2MB (per core)	24 MB
L3 cache	60MB	256 MB
Manufacturing process technology	10 nm	7 nm+
Maximum case temperature (TCase)	85°C
Maximum frequency	4 GHz	3.6 GHz
Number of cores	32	48
Number of threads	64	96
Unlocked
Memory
ECC memory support
Supported memory types	DDR5-4800 MHz, Eight-channel	DDR4-3200
Max memory channels		8
Maximum memory bandwidth		190.73 GB/s
Maximum memory size		4 TB
Compatibility
Max number of CPUs in a configuration	2
Sockets supported	4677	SP3
Thermal Design Power (TDP)	205 Watt	240 Watt
Configurable TDP		225-240 Watt
Socket Count		1P/2P
Peripherals
PCIe configurations	Gen 5, 80 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™)