Intel Xeon Gold 6421N vs Intel Xeon Gold 6428N

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CPU comparison with benchmarks


Intel Xeon Gold 6421N CPU1 vs CPU2 Intel Xeon Gold 6428N
Intel Xeon Gold 6421N Intel Xeon Gold 6428N

CPU comparison

Intel Xeon Gold 6421N or Intel Xeon Gold 6428N - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The Intel Xeon Gold 6421N has 32 cores with 64 threads and clocks with a maximum frequency of 3.60 GHz. Up to 4096 GB of memory is supported in 8 memory channels. The Intel Xeon Gold 6421N was released in Q1/2023.

The Intel Xeon Gold 6428N has 32 cores with 64 threads and clocks with a maximum frequency of 3.80 GHz. The CPU supports up to 4096 GB of memory in 8 memory channels. The Intel Xeon Gold 6428N was released in Q1/2023.
Intel Xeon Gold (163) Family Intel Xeon Gold (163)
Intel Xeon Gold 5400/6400 (25) CPU group Intel Xeon Gold 5400/6400 (25)
4 Generation 4
Sapphire Rapids Architecture Sapphire Rapids
Desktop / Server Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Xeon Gold 6421N has 32 CPU cores and can calculate 64 threads in parallel. The clock frequency of the Intel Xeon Gold 6421N is 1.80 GHz (3.60 GHz) while the Intel Xeon Gold 6428N has 32 CPU cores and 64 threads can calculate simultaneously. The clock frequency of the Intel Xeon Gold 6428N is at 1.80 GHz (3.80 GHz).

Intel Xeon Gold 6421N Characteristic Intel Xeon Gold 6428N
32 Cores 32
64 Threads 64
normal Core architecture normal
Yes Hyperthreading Yes
No Overclocking ? No
1.80 GHz Frequency 1.80 GHz
3.60 GHz Turbo Frequency (1 Core) 3.80 GHz
-- Turbo Frequency (All Cores) --

NPU AI performance

The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.

Intel Xeon Gold 6421N Characteristic Intel Xeon Gold 6428N
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

The Intel Xeon Gold 6421N or Intel Xeon Gold 6428N has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.

no iGPU GPU no iGPU
GPU frequency --
-- GPU (Turbo) --
-- GPU Generation --
Technology
Max. displays
-- Compute units --
-- Shader --
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory --
-- DirectX Version --

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.

no iGPU GPU no iGPU
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
No Codec h264 No
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
No Codec AVC No
No Codec VC-1 No
No Codec JPEG No

Memory & PCIe

The Intel Xeon Gold 6421N can use up to 4096 GB of memory in 8 memory channels. The maximum memory bandwidth is 281.6 GB/s. The Intel Xeon Gold 6428N supports up to 4096 GB of memory in 8 memory channels and achieves a memory bandwidth of up to 281.6 GB/s.

Intel Xeon Gold 6421N Characteristic Intel Xeon Gold 6428N
DDR5-4400 Memory DDR5-4400
4096 GB Max. Memory 4096 GB
8 (Octa Channel) Memory channels 8 (Octa Channel)
281.6 GB/s Max. Bandwidth 281.6 GB/s
Yes ECC Yes
-- L2 Cache --
60.00 MB L3 Cache 60.00 MB
5.0 PCIe version 5.0
80 PCIe lanes 80
315.0 GB/s PCIe Bandwidth 315.0 GB/s

Thermal Management

The thermal design power (TDP for short) of the Intel Xeon Gold 6421N is 185 W, while the Intel Xeon Gold 6428N has a TDP of 185 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

Intel Xeon Gold 6421N Characteristic Intel Xeon Gold 6428N
185 W TDP (PL1 / PBP) 185 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The Intel Xeon Gold 6421N is manufactured in 10 nm and has 60.00 MB cache. The Intel Xeon Gold 6428N is manufactured in 10 nm and has a 60.00 MB cache.

Intel Xeon Gold 6421N Characteristic Intel Xeon Gold 6428N
10 nm Technology 10 nm
Chiplet Chip design Chiplet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2, AVX2, AVX-512 ISA extensions SSE4.1, SSE4.2, AVX2, AVX-512
LGA 4677 Socket LGA 4677
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Windows, Linux Operating systems Windows, Linux
Q1/2023 Release date Q1/2023
2368 $ Release price 3200 $
show more data show more data


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Devices using this processor

Intel Xeon Gold 6421N Intel Xeon Gold 6428N
Unknown Unknown

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