Intel Xeon Gold 6421N vs Intel Xeon Gold 6128

Comparative analysis of Intel Xeon Gold 6421N and Intel Xeon Gold 6128 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

Intel Xeon Gold 6421N

Intel Xeon Gold 6128

Differences

Reasons to consider the Intel Xeon Gold 6421N

26 more cores, run more applications at once: 32 vs 6
52 more threads: 64 vs 12
A newer manufacturing process allows for a more powerful, yet cooler running processor: 10 nm vs 14 nm
Around 39% better performance in PassMark - Single thread mark: 2978 vs 2138
2.6x better performance in PassMark - CPU mark: 58797 vs 22641

Specifications (specs)
Number of cores	32 vs 6
Number of threads	64 vs 12
Manufacturing process technology	10 nm vs 14 nm
Benchmarks
PassMark - Single thread mark	2978 vs 2138
PassMark - CPU mark	58797 vs 22641

Reasons to consider the Intel Xeon Gold 6128

Around 3% higher clock speed: 3.70 GHz vs 3.6 GHz
Around 61% lower typical power consumption: 115 Watt vs 185 Watt

Maximum frequency	3.70 GHz vs 3.6 GHz
Thermal Design Power (TDP)	115 Watt vs 185 Watt

Compare benchmarks

CPU 1: Intel Xeon Gold 6421N
CPU 2: Intel Xeon Gold 6128

PassMark - Single thread mark

CPU 1

CPU 2

2978

2138

PassMark - CPU mark

CPU 1

CPU 2

58797

22641

Name	Intel Xeon Gold 6421N	Intel Xeon Gold 6128
PassMark - Single thread mark	2978	2138
PassMark - CPU mark	58797	22641
Geekbench 4 - Single Core		4516
Geekbench 4 - Multi-Core		22261

Compare specifications (specs)

	Intel Xeon Gold 6421N	Intel Xeon Gold 6128
Essentials
Launch date	10 Jan 2023	Q3'17
Launch price (MSRP)	$2368
Place in performance rating	212	133
Architecture codename		Skylake
Processor Number		6128
Series		Intel® Xeon® Scalable Processors
Status		Launched
Vertical segment		Server
Performance
Base frequency	1800 MHz	3.40 GHz
L1 cache	80K (per core)
L2 cache	2MB (per core)
L3 cache	60MB
Manufacturing process technology	10 nm	14 nm
Maximum case temperature (TCase)	85°C
Maximum frequency	3.6 GHz	3.70 GHz
Number of cores	32	6
Number of threads	64	12
Unlocked
Maximum core temperature		74°C
Number of Ultra Path Interconnect (UPI) Links		3
Memory
ECC memory support
Supported memory types	DDR5-4400 MHz, Eight-channel	DDR4-2666
Max memory channels		6
Maximum memory size		768 GB
Supported memory frequency		2666 MHz
Compatibility
Max number of CPUs in a configuration	1
Sockets supported	4677	FCLGA3647
Thermal Design Power (TDP)	185 Watt	115 Watt
Low Halogen Options Available
Package Size		76.0mm x 56.5mm
Peripherals
PCIe configurations	Gen 5, 80 Lanes, (CPU only)
Max number of PCIe lanes		48
PCI Express revision		3.0
Scalability		S4S
Security & Reliability
Execute Disable Bit (EDB)
Intel® Run Sure Technology
Intel® Trusted Execution technology (TXT)
Mode-based Execute Control (MBE)
Advanced Technologies
Enhanced Intel SpeedStep® technology
Instruction set extensions		Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
Intel 64
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® TSX-NI
Intel® Turbo Boost technology
Intel® Volume Management Device (VMD)
Intel® vPro™ Platform Eligibility
Number of AVX-512 FMA Units		2
Speed Shift technology
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)