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Intel Core Ultra 7 255HX vs Intel Atom C3808
Last updated:
Benchmarks
Performance Overview
Average performance across multiple benchmarks
Single-core performance
Multi-core performance
More benchmarks
Specifications
At a glance
|
Wischen
|
Intel Core Ultra 7 255HX | Intel Atom C3808 |
|---|---|---|
| Family | Intel Core Ultra 7 (31) | Intel Atom (108) |
| CPU group | Intel Core Ultra 200HX (8) | Intel Atom C3000 (20) |
| Architecture | Arrow Lake | Denverton |
| Technology | 3 nm | 14 nm |
| Segment | Notebook | Desktop |
| Socket | BGA 2114 | BGA 1310 |
| Predecessor | ||
| Successor |
CPU Cores and Base Frequency
|
Wischen
|
Intel Core Ultra 7 255HX | Intel Atom C3808 |
|---|---|---|
| CPU Cores / Threads | 20 / 20 | 12 / 12 |
| Hyperthreading / SMT | ✗ | ✗ |
| Core architecture | hybrid (big.LITTLE) | normal |
| Core Cluster 1: | 8x Lion Cove 2.40 - 5.20 GHz |
12x 2.00 GHz |
| Core Cluster 2: | 12x Skymont 1.80 - 4.50 GHz |
|
| L2-Cache | 36.00 MB | 12.00 MB |
| L3-Cache | 30.00 MB | |
| Overclocking | ✓ | ✗ |
Integrated graphics (iGPU)
|
Wischen
|
Intel Core Ultra 7 255HX | Intel Atom C3808 |
|---|---|---|
| GPU name | Intel Xe 4 Core Graphics 64 EUs (Arrow Lake) | no iGPU |
| GPU frequency | 0.30 - 1.85 GHz | |
| CUs / Shader | 4 / 512 | / |
| Raytracing | ✓ | ✗ |
| Max. displays | 3 | |
| Max. GPU Memory | 32 GB | |
| Technology | 5 nm | |
| Release date | Q3/2024 |
NPU AI performance
|
Wischen
|
Intel Core Ultra 7 255HX | Intel Atom C3808 |
|---|---|---|
| AI hardware | Intel® AI Boost | |
| AI specifications | Intel AI Boost NPU 4 @ 13 TOPS | |
| NPU + CPU + iGPU | 33 TOPS |
Memory & PCIe
|
Wischen
|
Intel Core Ultra 7 255HX | Intel Atom C3808 |
|---|---|---|
| Memory | DDR5-6400 (102.4 GB/s) | DDR4-2133 (34.1 GB/s) |
| Max. Memory | 192 GB | 256 GB |
| Memory channels | 2 | 2 |
| ECC | Yes | Yes |
| PCIe | 5.0 x 20 | 3.0 x 16 |
| PCIe Bandwidth | 78.8 GB/s | 15.8 GB/s |
Thermal Management
|
Wischen
|
Intel Core Ultra 7 255HX | Intel Atom C3808 |
|---|---|---|
| TDP | 55 W | 25 W |
| TDP (PL2) | 160 W | |
| TDP up | ||
| TDP down | 45 W | |
| T. junction max. | 105 °C | 100 °C |
Technical details
|
Wischen
|
Intel Core Ultra 7 255HX | Intel Atom C3808 |
|---|---|---|
| Chip design | Chiplet | Monolithic |
| AES-NI | ✓ | ✓ |
| Operating systems | Windows 11, Linux | Windows 10, Linux |
| Instruction set | x86-64 (64 bit) | x86-64 (64 bit) |
| ISA extensions | SSE4.1, SSE4.2, AVX2 | SSE4.1, SSE4.2 |
| Release date | Q1/2025 | Q3/2017 |
| Release price | 369 $ | |
| 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 Core Ultra 7 255HX is 3.3 stars (134 ratings), while Intel Atom C3808 has received 4.0 stars (2 ratings).
Click on the stars to rate one or both processors.
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