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Intel Atom E3845 vs Intel Core Ultra 7 255U
Last updated:
Benchmarks
Performance Overview
Average performance across multiple benchmarks
Single-core performance
Multi-core performance
Geekbench 6 Single-Core
Single-core performance
Intel Atom E3845
6 %
4C / 4T · 1.91 GHz
Intel Core Ultra 7 255U
100 %
12C / 14T · 5.20 GHz
Geekbench 6 Multi-Core
Multi-core performance
Intel Atom E3845
6 %
4C / 4T · 1.91 GHz
Intel Core Ultra 7 255U
100 %
12C / 14T · 2.00 GHz
iGPU - FP32 Performance (Single-precision GFLOPS)
Intel Atom E3845
2 %
Intel HD Graphics (Bay Trail GT1)
Intel Core Ultra 7 255U
100 %
Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake)
More benchmarks
Specifications
At a glance
|
Wischen
|
Intel Atom E3845 | Intel Core Ultra 7 255U |
|---|---|---|
| Family | Intel Atom (108) | Intel Core Ultra 7 (31) |
| CPU group | Intel Atom E3800 (6) | Intel Core Ultra 200U (4) |
| Architecture | Bay Trail | Meteor Lake U Refresh |
| Technology | 22 nm | 3 nm |
| Segment | Notebook | Notebook |
| Socket | BGA 1170 | BGA 2049 |
| Predecessor | Intel Core Ultra 7 155U | |
| Successor |
CPU Cores and Base Frequency
|
Wischen
|
Intel Atom E3845 | Intel Core Ultra 7 255U |
|---|---|---|
| CPU Cores / Threads | 4 / 4 | 12 / 14 |
| Hyperthreading / SMT | ✗ | ✓ |
| Core architecture | normal | hybrid (big.LITTLE) |
| Core Cluster 1: | 4x 1.91 GHz |
2x Redwood Cove 2.00 - 5.20 GHz |
| Core Cluster 2: | 8x Crestmont 1.70 - 4.20 GHz |
|
| Core Cluster 3: | 2x Crestmont 0.70 - 2.40 GHz |
|
| L2-Cache | 12.00 MB | |
| L3-Cache | 2.00 MB | |
| Overclocking | ✗ | ✗ |
Integrated graphics (iGPU)
|
Wischen
|
Intel Atom E3845 | Intel Core Ultra 7 255U |
|---|---|---|
| GPU name | Intel HD Graphics (Bay Trail GT1) | Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake) |
| GPU frequency | 0.54 - 0.79 GHz | 0.60 - 2.10 GHz |
| CUs / Shader | 4 / 32 | 64 / 512 |
| Raytracing | ✗ | ✓ |
| Max. displays | 2 | 4 |
| Max. GPU Memory | 2 GB | 32 GB |
| Technology | 22 nm | 5 nm |
| Release date | Q3/2013 | Q4/2023 |
NPU AI performance
|
Wischen
|
Intel Atom E3845 | Intel Core Ultra 7 255U |
|---|---|---|
| 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 E3845 | Intel Core Ultra 7 255U |
|---|---|---|
| Memory | DDR3L-1333 (21.3 GB/s) | LPDDR5X-8400 (134.4 GB/s) DDR5-6400 (102.4 GB/s) |
| Max. Memory | 8 GB | 128 GB |
| Memory channels | 2 | 2 |
| ECC | No | No |
| PCIe | 4.0 x 20 | |
| PCIe Bandwidth | 39.4 GB/s |
Thermal Management
|
Wischen
|
Intel Atom E3845 | Intel Core Ultra 7 255U |
|---|---|---|
| TDP | 10 W | 15 W |
| TDP (PL2) | 57 W | |
| TDP up | ||
| TDP down | 12 W | |
| T. junction max. | 105 °C |
Technical details
|
Wischen
|
Intel Atom E3845 | Intel Core Ultra 7 255U |
|---|---|---|
| Chip design | Monolithic | Chiplet |
| AES-NI | ✓ | ✓ |
| Operating systems | Windows 11, Linux | |
| Instruction set | x86-64 (64 bit) | x86-64 (64 bit) |
| ISA extensions | SSE4.1, SSE4.2 | SSE4.1, SSE4.2, AVX2 |
| Release date | Q4/2013 | Q1/2025 |
| 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 E3845 is 1.0 stars (1 ratings), while Intel Core Ultra 7 255U has received 2.3 stars (84 ratings).
Click on the stars to rate one or both processors.
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Intel Core Ultra 7 255U
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Intel Atom E3845
4C / 4T · 0.00 GHz
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