Intel Atom Z2420 vs Intel Xeon D-1627

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CPU comparison with benchmarks


Intel Atom Z2420 CPU1 vs CPU2 Intel Xeon D-1627
Intel Atom Z2420 Intel Xeon D-1627

CPU comparison

Intel Atom Z2420 or Intel Xeon D-1627 - 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 Z2420 has 1 cores with 2 threads and clocks with a maximum frequency of 1.20 GHz. Up to 1 GB of memory is supported in 2 memory channels. The Intel Atom Z2420 was released in Q1/2013.

The Intel Xeon D-1627 has 4 cores with 8 threads and clocks with a maximum frequency of 3.20 GHz. The CPU supports up to 128 GB of memory in 2 memory channels. The Intel Xeon D-1627 was released in Q2/2019.
Intel Atom (108) Family Intel Xeon D (79)
Intel Atom Z2400/Z2600 (2) CPU group Intel Xeon D-1600 (8)
3 Generation 3
Penwell Architecture Hewitt Lake
Mobile Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Atom Z2420 has 1 CPU cores and can calculate 2 threads in parallel. The clock frequency of the Intel Atom Z2420 is 1.20 GHz while the Intel Xeon D-1627 has 4 CPU cores and 8 threads can calculate simultaneously. The clock frequency of the Intel Xeon D-1627 is at 2.90 GHz (3.20 GHz).

Intel Atom Z2420 Characteristic Intel Xeon D-1627
1 Cores 4
2 Threads 8
normal Core architecture normal
Yes Hyperthreading Yes
No Overclocking ? No
1.20 GHz Frequency 2.90 GHz
-- Turbo Frequency (1 Core) 3.20 GHz
-- Turbo Frequency (All Cores) 3.20 GHz

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 Atom Z2420 Characteristic Intel Xeon D-1627
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

The Intel Atom Z2420 or Intel Xeon D-1627 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.

PowerVR SGX540 GPU no iGPU
0.40 GHz GPU frequency --
-- GPU (Turbo) --
-- GPU Generation --
45nm Technology
1 Max. displays
1 Compute units --
-- Shader --
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory --
10.1 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.

PowerVR SGX540 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 Z2420 can use up to 1 GB of memory in 2 memory channels. The maximum memory bandwidth is 6.4 GB/s. The Intel Xeon D-1627 supports up to 128 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 34.1 GB/s.

Intel Atom Z2420 Characteristic Intel Xeon D-1627
LPDDR2-800 Memory DDR4-2133
1 GB Max. Memory 128 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
6.4 GB/s Max. Bandwidth 34.1 GB/s
No ECC Yes
0.50 MB L2 Cache 6.00 MB
-- L3 Cache --
-- PCIe version 3.0
-- PCIe lanes 32
-- PCIe Bandwidth 31.5 GB/s

Thermal Management

The thermal design power (TDP for short) of the Intel Atom Z2420 is 3 W, while the Intel Xeon D-1627 has a TDP of 45 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

Intel Atom Z2420 Characteristic Intel Xeon D-1627
3 W TDP (PL1 / PBP) 45 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
90 °C Tjunction max. --

Technical details

The Intel Atom Z2420 is manufactured in 32 nm and has 0.50 MB cache. The Intel Xeon D-1627 is manufactured in 14 nm and has a 6.00 MB cache.

Intel Atom Z2420 Characteristic Intel Xeon D-1627
32 nm Technology 14 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
MMX, SSE3, SSSE3 ISA extensions SSE4.1, SSE4.2, AVX2
BGA 617 Socket BGA 1667
None Virtualization VT-x, VT-x EPT, VT-d
No AES-NI Yes
Operating systems Windows 10, Linux
Q1/2013 Release date Q2/2019
-- Release price 216 $
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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 Atom Z2420 Intel Atom Z2420
PowerVR SGX540 @ 0.40 GHz
6 (100%)
Intel Xeon D-1627 Intel Xeon D-1627
@ 0.00 GHz
0 (0%)

Devices using this processor

Intel Atom Z2420 Intel Xeon D-1627
Unknown Unknown

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