Intel Atom C3338R vs Intel Xeon Platinum 8458P

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CPU comparison with benchmarks


Intel Atom C3338R CPU1 vs CPU2 Intel Xeon Platinum 8458P
Intel Atom C3338R Intel Xeon Platinum 8458P

CPU comparison

Intel Atom C3338R or Intel Xeon Platinum 8458P - 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 Atom C3338R has 2 cores with 2 threads and clocks with a maximum frequency of 2.20 GHz. Up to 128 GB of memory is supported in 1 memory channels. The Intel Atom C3338R was released in Q2/2020.

The Intel Xeon Platinum 8458P has 44 cores with 88 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 Platinum 8458P was released in Q1/2023.
Intel Atom (108) Family Intel Xeon Platinum (89)
Intel Atom C3000 (20) CPU group Intel Xeon Platinum 8400 (18)
5 Generation 4
Denverton Architecture Sapphire Rapids
Desktop / Server Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Atom C3338R is a 2 core processor with a clock frequency of 1.80 GHz (2.20 GHz). The Intel Xeon Platinum 8458P has 44 CPU cores with a clock frequency of 2.70 GHz (3.80 GHz).
Intel Atom C3338R Characteristic Intel Xeon Platinum 8458P
2 Cores 44
2 Threads 88
normal Core architecture normal
No Hyperthreading Yes
No Overclocking ? No
1.80 GHz Frequency 2.70 GHz
2.20 GHz Turbo Frequency (1 Core) 3.80 GHz
2.00 GHz Turbo Frequency (All Cores) --

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 Atom C3338R Characteristic Intel Xeon Platinum 8458P
-- AI hardware --
-- AI specifications --

Internal Graphics

The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs.
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 Atom C3338R supports a maximum of 128 GB of memory in 1 memory channels. The Intel Xeon Platinum 8458P can connect up to 4096 GB of memory in 8 memory channels.
Intel Atom C3338R Characteristic Intel Xeon Platinum 8458P
DDR4-1866 Memory DDR5-4400, DDR5-4800
128 GB Max. Memory 4096 GB
1 (Single Channel) Memory channels 8 (Octa Channel)
29.9 GB/s Max. Bandwidth 307.2 GB/s
Yes ECC Yes
4.00 MB L2 Cache --
-- L3 Cache 82.50 MB
3.0 PCIe version 5.0
10 PCIe lanes 80
9.9 GB/s PCIe Bandwidth 315.0 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Atom C3338R has a TDP of 10.5 W, that of the Intel Xeon Platinum 8458P is 350 W.
Intel Atom C3338R Characteristic Intel Xeon Platinum 8458P
10.5 W TDP (PL1 / PBP) 350 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
100 °C Tjunction max. --

Technical details

The Intel Atom C3338R has a 4.00 MB cache, while the Intel Xeon Platinum 8458P cache has a total of 82.50 MB.
Intel Atom C3338R Characteristic Intel Xeon Platinum 8458P
14 nm Technology 10 nm
Monolithic Chip design Chiplet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2 ISA extensions SSE4.1, SSE4.2, AVX2, AVX-512
BGA 1310 Socket LGA 4677
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, Linux
Q2/2020 Release date Q1/2023
37 $ Release price 6759 $
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Devices using this processor
Intel Atom C3338R Intel Xeon Platinum 8458P
Unknown Unknown

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