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Intel Atom Z2420 vs Intel Core Ultra 7 155H
Last updated:
Benchmarks
Performance Overview
Average performance across multiple benchmarks
Single-core performance
Multi-core performance
iGPU - FP32 Performance (Single-precision GFLOPS)
Intel Atom Z2420
0 %
PowerVR SGX540
Intel Core Ultra 7 155H
100 %
Intel Iris Xe 8 Core Graphics 128 EUs (Meteor Lake)
More benchmarks
Cinebench 2026 (ST)
218 entries
218 entries
Cinebench 2026 (MC)
219 entries
219 entries
Cinebench 2024 (SC)
427 entries
427 entries
Cinebench 2024 (MC)
422 entries
422 entries
Cinebench R23 (SC)
690 entries
690 entries
Cinebench R23 (MC)
665 entries
665 entries
Geekbench 6 (SC)
1,989 entries
1,989 entries
Geekbench 6 (MC)
1,927 entries
1,927 entries
Geekbench 5 (SC)
2,512 entries
2,512 entries
Geekbench 5 (MC)
2,483 entries
2,483 entries
FP32 SP (iGPU)
2,219 entries
2,219 entries
3DMark Timespy (iGPU)
534 entries
534 entries
PassMark CPU-Mark
2,504 entries
2,504 entries
CPU performance per watt (efficiency)
140 entries
140 entries
Specifications
At a glance
|
Wischen
|
Intel Atom Z2420 | Intel Core Ultra 7 155H |
|---|---|---|
| Family | Intel Atom (108) | Intel Core Ultra 7 (31) |
| CPU group | Intel Atom Z2400/Z2600 (2) | Intel Core Ultra 100H (5) |
| Architecture | Penwell | Meteor Lake H |
| Technology | 32 nm | 7 nm |
| Segment | Notebook | Notebook |
| Socket | BGA 617 | BGA 2049 |
| Predecessor | ||
| Successor | Intel Core Ultra 7 255H |
CPU Cores and Base Frequency
|
Wischen
|
Intel Atom Z2420 | Intel Core Ultra 7 155H |
|---|---|---|
| CPU Cores / Threads | 1 / 2 | 16 / 22 |
| Hyperthreading / SMT | ✓ | ✓ |
| Core architecture | normal | hybrid (big.LITTLE) |
| Core Cluster 1: | 1x 1.20 GHz |
6x Redwood Cove 1.40 - 4.80 GHz |
| Core Cluster 2: | 8x Crestmont 0.90 - 3.80 GHz |
|
| Core Cluster 3: | 2x Crestmont 0.70 - 2.50 GHz |
|
| L2-Cache | 0.50 MB | 18.00 MB |
| L3-Cache | 24.00 MB | |
| Overclocking | ✗ | ✗ |
Integrated graphics (iGPU)
|
Wischen
|
Intel Atom Z2420 | Intel Core Ultra 7 155H |
|---|---|---|
| GPU name | PowerVR SGX540 | Intel Iris Xe 8 Core Graphics 128 EUs (Meteor Lake) |
| GPU frequency | 0.40 GHz | 0.60 - 2.25 GHz |
| CUs / Shader | 1 / | 128 / 1024 |
| Raytracing | ✗ | ✓ |
| Max. displays | 1 | 4 |
| Max. GPU Memory | 32 GB | |
| Technology | 45nm | 5 nm |
| Release date | Q1/2008 | Q4/2023 |
NPU AI performance
|
Wischen
|
Intel Atom Z2420 | Intel Core Ultra 7 155H |
|---|---|---|
| AI hardware | Intel® AI Boost | |
| AI specifications | Intel AI Boost @ 1.4 GHz (OpenVINO, WindowsML, DirectML, ONNX RT) | |
| NPU + CPU + iGPU |
Memory & PCIe
|
Wischen
|
Intel Atom Z2420 | Intel Core Ultra 7 155H |
|---|---|---|
| Memory | LPDDR2-800 (6.4 GB/s) | LPDDR5X-7500 (120.0 GB/s) DDR5-5600 (89.6 GB/s) |
| Max. Memory | 1 GB | 96 GB |
| Memory channels | 2 | 2 |
| ECC | No | No |
| PCIe | 5.0 x 20 | |
| PCIe Bandwidth | 78.8 GB/s |
Thermal Management
|
Wischen
|
Intel Atom Z2420 | Intel Core Ultra 7 155H |
|---|---|---|
| TDP | 3 W | 28 W |
| TDP (PL2) | 115 W | |
| TDP up | 65 W | |
| TDP down | 20 W | |
| T. junction max. | 90 °C | 110 °C |
Technical details
|
Wischen
|
Intel Atom Z2420 | Intel Core Ultra 7 155H |
|---|---|---|
| Chip design | Monolithic | Chiplet |
| AES-NI | ✗ | ✓ |
| Operating systems | Windows 11, Linux | |
| Instruction set | x86-64 (64 bit) | x86-64 (64 bit) |
| ISA extensions | MMX, SSE3, SSSE3 | SSE4.1, SSE4.2, AVX2 |
| Release date | Q1/2013 | Q4/2023 |
| Release price | ||
| Documents | Technical data sheet | Technical data sheet |
User Reviews
Your rating
Here you can rate one or both of the processors. The average rating of Intel Atom Z2420 is 3.7 stars (3 ratings), while Intel Core Ultra 7 155H has received 3.9 stars (537 ratings).
Click on the stars to rate one or both processors.
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Intel Core Ultra 7 155H
16C / 22T · 4.80 GHz
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Intel Atom Z2420
1C / 2T · 0.00 GHz
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