Intel Xeon Platinum 8321HC vs Intel Core i5-8400B

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CPU comparison with benchmarks


Intel Xeon Platinum 8321HC CPU1 vs CPU2 Intel Core i5-8400B
Intel Xeon Platinum 8321HC Intel Core i5-8400B

CPU comparison

In this CPU comparison, we compare the Intel Xeon Platinum 8321HC and the Intel Core i5-8400B and use benchmarks to check which processor is faster.

We compare the Intel Xeon Platinum 8321HC 26 core processor released in Q2/2020 with the Intel Core i5-8400B which has 6 CPU cores and was introduced in Q2/2018.
Intel Xeon Platinum (89) Family Intel Core i5 (331)
Intel Xeon Platinum 8300 (CL) (10) CPU group Intel Core i 8000 (20)
3 Generation 8
Cooper Lake Architecture Coffee Lake S
Desktop / Server Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Xeon Platinum 8321HC is a 26 core processor with a clock frequency of 1.40 GHz (3.00 GHz). The processor can compute 52 threads at the same time. The Intel Core i5-8400B clocks with 2.80 GHz (3.80 GHz), has 6 CPU cores and can calculate 6 threads in parallel.

Intel Xeon Platinum 8321HC Characteristic Intel Core i5-8400B
26 Cores 6
52 Threads 6
normal Core architecture normal
Yes Hyperthreading No
No Overclocking ? No
1.40 GHz Frequency 2.80 GHz
3.00 GHz Turbo Frequency (1 Core) 3.80 GHz
1.80 GHz Turbo Frequency (All Cores) 4.00 GHz

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

Intel Xeon Platinum 8321HC Characteristic Intel Core i5-8400B
-- AI hardware --
-- AI specifications --

Internal Graphics

Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback.

no iGPU GPU Intel UHD Graphics 630
GPU frequency 0.35 GHz
-- GPU (Turbo) 1.15 GHz
-- GPU Generation 9.5
Technology 14 nm
Max. displays 3
-- Compute units 24
-- Shader 192
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 64 GB
-- DirectX Version 12

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 Intel UHD Graphics 630
No Codec h265 / HEVC (8 bit) Decode / Encode
No Codec h265 / HEVC (10 bit) Decode / Encode
No Codec h264 Decode / Encode
No Codec VP9 Decode / Encode
No Codec VP8 Decode / Encode
No Codec AV1 No
No Codec AVC Decode / Encode
No Codec VC-1 Decode
No Codec JPEG Decode / Encode

Memory & PCIe

Up to 1146 GB of memory in a maximum of 6 memory channels is supported by the Intel Xeon Platinum 8321HC, while the Intel Core i5-8400B supports a maximum of 64 GB of memory with a maximum memory bandwidth of 42.7 GB/s enabled.

Intel Xeon Platinum 8321HC Characteristic Intel Core i5-8400B
DDR4-2933 Memory DDR4-2666
1146 GB Max. Memory 64 GB
6 (Hexa Channel) Memory channels 2 (Dual Channel)
140.7 GB/s Max. Bandwidth 42.7 GB/s
Yes ECC No
-- L2 Cache --
35.75 MB L3 Cache 9.00 MB
3.0 PCIe version 3.0
48 PCIe lanes 16
47.3 GB/s PCIe Bandwidth 15.8 GB/s

Thermal Management

The Intel Xeon Platinum 8321HC has a TDP of 88 W. The TDP of the Intel Core i5-8400B is 65 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

Intel Xeon Platinum 8321HC Characteristic Intel Core i5-8400B
88 W TDP (PL1 / PBP) 65 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. 100 °C

Technical details

The Intel Xeon Platinum 8321HC has 35.75 MB cache and is manufactured in 14 nm. The cache of Intel Core i5-8400B is at 9.00 MB. The processor is manufactured in 14 nm.

Intel Xeon Platinum 8321HC Characteristic Intel Core i5-8400B
14 nm Technology 14 nm
Monolithic Chip design Monolithic
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
LGA 4189 Socket BGA 1440
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Windows 11, Linux
Q2/2020 Release date Q2/2018
-- Release price 260 $
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iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
Intel Xeon Platinum 8321HC Intel Xeon Platinum 8321HC
@ 0.00 GHz
0 (0%)
Intel Core i5-8400B Intel Core i5-8400B
Intel UHD Graphics 630 @ 1.15 GHz
442 (100%)

Blender 3.1 Benchmark

In the Blender Benchmark 3.1, the scenes "monster", "junkshop" and "classroom" are rendered and the time required by the system is measured. In our benchmark we test the CPU and not the graphics card. Blender 3.1 was presented as a standalone version in March 2022.
Intel Xeon Platinum 8321HC Intel Xeon Platinum 8321HC
26C 52T @ 1.80 GHz
0 (0%)
Intel Core i5-8400B Intel Core i5-8400B
6C 6T @ 4.00 GHz
76 (100%)

Devices using this processor

Intel Xeon Platinum 8321HC Intel Core i5-8400B
Unknown Unknown

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