Intel Atom x6425E vs Intel Xeon Platinum 9221

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CPU comparison with benchmarks


Intel Atom x6425E CPU1 vs CPU2 Intel Xeon Platinum 9221
Intel Atom x6425E Intel Xeon Platinum 9221

CPU comparison

Intel Atom x6425E or Intel Xeon Platinum 9221 - 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 x6425E has 4 cores with 4 threads and clocks with a maximum frequency of 3.00 GHz. Up to 32 GB of memory is supported in 4 memory channels. The Intel Atom x6425E was released in Q1/2021.

The Intel Xeon Platinum 9221 has 32 cores with 64 threads and clocks with a maximum frequency of 3.70 GHz. The CPU supports up to GB of memory in 12 memory channels. The Intel Xeon Platinum 9221 was released in Q3/2019.
Intel Atom (108) Family Intel Xeon Platinum (89)
Intel Atom x6000 (10) CPU group Intel Xeon Platinum 8200/9200 (21)
6 Generation 2
Elkhart Lake Architecture Cascade Lake
Mobile Segment Desktop / Server
-- Predecessor --
Intel Atom x7425E Successor --

CPU Cores and Base Frequency

The Intel Atom x6425E is a 4 core processor with a clock frequency of 2.00 GHz (3.00 GHz). The Intel Xeon Platinum 9221 has 32 CPU cores with a clock frequency of 2.30 GHz (3.70 GHz).

Intel Atom x6425E Characteristic Intel Xeon Platinum 9221
4 Cores 32
4 Threads 64
normal Core architecture normal
No Hyperthreading Yes
No Overclocking ? No
2.00 GHz Frequency 2.30 GHz
3.00 GHz Turbo Frequency (1 Core) 3.70 GHz
2.70 GHz Turbo Frequency (All Cores) 2.50 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 Atom x6425E Characteristic Intel Xeon Platinum 9221
-- 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.

Intel UHD Graphics 10th Gen (32 EU) GPU no iGPU
0.50 GHz GPU frequency --
0.75 GHz GPU (Turbo) --
11 GPU Generation --
14 nm Technology
3 Max. displays
32 Compute units --
256 Shader --
No Hardware Raytracing No
No Frame Generation No
64 GB Max. GPU Memory --
12 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.

Intel UHD Graphics 10th Gen (32 EU) GPU no iGPU
Decode / Encode Codec h265 / HEVC (8 bit) No
Decode / Encode Codec h265 / HEVC (10 bit) No
Decode / Encode Codec h264 No
Decode / Encode Codec VP9 No
Decode / Encode Codec VP8 No
Decode Codec AV1 No
Decode / Encode Codec AVC No
Decode Codec VC-1 No
Decode / Encode Codec JPEG No

Memory & PCIe

The Intel Atom x6425E supports a maximum of 32 GB of memory in 4 memory channels. The Intel Xeon Platinum 9221 can connect up to GB of memory in 12 memory channels.

Intel Atom x6425E Characteristic Intel Xeon Platinum 9221
LPDDR4X-3733, DDR4-3200 Memory DDR4-2933
32 GB Max. Memory
4 (Quad Channel) Memory channels 12
119.2 GB/s Max. Bandwidth 281.4 GB/s
Yes ECC Yes
1.50 MB L2 Cache --
-- L3 Cache 71.50 MB
3.0 PCIe version 3.0
8 PCIe lanes 48
7.9 GB/s PCIe Bandwidth 47.3 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Atom x6425E has a TDP of 12 W, that of the Intel Xeon Platinum 9221 is 250 W.

Intel Atom x6425E Characteristic Intel Xeon Platinum 9221
12 W TDP (PL1 / PBP) 250 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
105 °C Tjunction max. --

Technical details

The Intel Atom x6425E has a 1.50 MB cache, while the Intel Xeon Platinum 9221 cache has a total of 71.50 MB.

Intel Atom x6425E Characteristic Intel Xeon Platinum 9221
10 nm Technology 14 nm
Monolithic Chip design Monolithic
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 1493 Socket LGA 3647
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Operating systems Windows 10, Linux
Q1/2021 Release date Q3/2019
56 $ Release price --
show more data show more data


Rate these processors

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Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Atom x6425E Intel Atom x6425E
4C 4T @ 3.00 GHz
676 (100%)
Intel Xeon Platinum 9221 Intel Xeon Platinum 9221
32C 64T @ 3.70 GHz
0 (0%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Atom x6425E Intel Atom x6425E
4C 4T @ 2.70 GHz
2055 (100%)
Intel Xeon Platinum 9221 Intel Xeon Platinum 9221
32C 64T @ 2.50 GHz
0 (0%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
Intel Atom x6425E Intel Atom x6425E
4C 4T @ 3.00 GHz
539 (100%)
Intel Xeon Platinum 9221 Intel Xeon Platinum 9221
32C 64T @ 3.70 GHz
0 (0%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
Intel Atom x6425E Intel Atom x6425E
4C 4T @ 2.70 GHz
1434 (100%)
Intel Xeon Platinum 9221 Intel Xeon Platinum 9221
32C 64T @ 2.50 GHz
0 (0%)

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 Atom x6425E Intel Atom x6425E
Intel UHD Graphics 10th Gen (32 EU) @ 0.75 GHz
400 (100%)
Intel Xeon Platinum 9221 Intel Xeon Platinum 9221
@ 0.00 GHz
0 (0%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
Intel Atom x6425E Intel Atom x6425E
4C 4T @ 2.70 GHz
3885 (100%)
Intel Xeon Platinum 9221 Intel Xeon Platinum 9221
32C 64T @ 2.50 GHz
0 (0%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Atom x6425E Intel Atom x6425E
4C 4T @ 3.00 GHz
114 (100%)
Intel Xeon Platinum 9221 Intel Xeon Platinum 9221
32C 64T @ 3.70 GHz
0 (0%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Atom x6425E Intel Atom x6425E
4C 4T @ 2.70 GHz
335 (100%)
Intel Xeon Platinum 9221 Intel Xeon Platinum 9221
32C 64T @ 2.50 GHz
0 (0%)

Devices using this processor

Intel Atom x6425E Intel Xeon Platinum 9221
Unknown Unknown

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