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Intel Core i3-8121U vs Intel Core Ultra 9 285
Last updated:
Benchmarks
Performance Overview
Average performance across multiple benchmarks
Single-core performance
Multi-core performance
Geekbench 6 Single-Core
Single-core performance
Intel Core i3-8121U
34 %
2C / 4T · 3.20 GHz
Intel Core Ultra 9 285
100 %
24C / 24T · 5.60 GHz
Geekbench 6 Multi-Core
Multi-core performance
Intel Core i3-8121U
13 %
2C / 4T · 2.70 GHz
Intel Core Ultra 9 285
100 %
24C / 24T · 5.30 GHz
More benchmarks
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
PassMark CPU-Mark
2,504 entries
2,504 entries
Cinebench R15 (SC)
1,113 entries
1,113 entries
Cinebench R15 (MC)
1,110 entries
1,110 entries
Geekbench 3 (SC)
945 entries
945 entries
Geekbench 3 (MC)
941 entries
941 entries
AI performance (NPU)
218 entries
218 entries
Specifications
At a glance
|
Wischen
|
Intel Core i3-8121U | Intel Core Ultra 9 285 |
|---|---|---|
| Family | Intel Core i3 (205) | Intel Core Ultra 9 (12) |
| CPU group | Intel Core i 8000U (CL) (1) | Intel Core Ultra 200 AL-S (20) |
| Architecture | Cannon Lake U | Arrow Lake |
| Technology | 10 nm | 3 nm |
| Segment | Notebook | Desktop |
| Socket | BGA 1356 | LGA 1851 |
| Predecessor | ||
| Successor |
CPU Cores and Base Frequency
|
Wischen
|
Intel Core i3-8121U | Intel Core Ultra 9 285 |
|---|---|---|
| CPU Cores / Threads | 2 / 4 | 24 / 24 |
| Hyperthreading / SMT | ✓ | ✗ |
| Core architecture | normal | hybrid (big.LITTLE) |
| Core Cluster 1: | 2x 2.20 - 3.20 GHz |
8x Lion Cove 2.50 - 5.60 GHz |
| Core Cluster 2: | 16x Skymont 1.90 - 4.60 GHz |
|
| L2-Cache | 40.00 MB | |
| L3-Cache | 4.00 MB | 36.00 MB |
| Overclocking | ✗ | ✓ |
Integrated graphics (iGPU)
|
Wischen
|
Intel Core i3-8121U | Intel Core Ultra 9 285 |
|---|---|---|
| GPU name | no iGPU | Intel Xe 4 Core Graphics 64 EUs (Arrow Lake) |
| GPU frequency | 0.30 - 2.00 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 i3-8121U | Intel Core Ultra 9 285 |
|---|---|---|
| AI hardware | Intel® AI Boost | |
| AI specifications | Intel AI Boost NPU 4 @ 13 TOPS | |
| NPU + CPU + iGPU | 36 TOPS |
Memory & PCIe
|
Wischen
|
Intel Core i3-8121U | Intel Core Ultra 9 285 |
|---|---|---|
| Memory | DDR4-2400 (38.4 GB/s) LPDDR4-2400 (38.2 GB/s) | DDR5-6400 (102.4 GB/s) |
| Max. Memory | 32 GB | 256 GB |
| Memory channels | 2 | 2 |
| ECC | No | Yes |
| PCIe | 3.0 x 16 | 5.0 x 20 |
| PCIe Bandwidth | 15.8 GB/s | 78.8 GB/s |
Thermal Management
|
Wischen
|
Intel Core i3-8121U | Intel Core Ultra 9 285 |
|---|---|---|
| TDP | 15 W | 65 W |
| TDP (PL2) | 182 W | |
| TDP up | ||
| TDP down | ||
| T. junction max. | 105 °C | 105 °C |
Technical details
|
Wischen
|
Intel Core i3-8121U | Intel Core Ultra 9 285 |
|---|---|---|
| Chip design | Monolithic | Monolithic |
| AES-NI | ✓ | ✓ |
| Operating systems | Windows 10, Windows 11, Linux | Windows 11, Linux |
| Instruction set | x86-64 (64 bit) | x86-64 (64 bit) |
| ISA extensions | SSE4.1, SSE4.2, AVX2, AVX-512 | SSE4.1, SSE4.2, AVX2 |
| Release date | Q2/2018 | Q1/2025 |
| Release price | 549 $ | |
| 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 i3-8121U is 5.0 stars (1 ratings), while Intel Core Ultra 9 285 has received 2.3 stars (93 ratings).
Click on the stars to rate one or both processors.
Most popular CPUs in both categories
1
Intel Core i3-8121U
2C / 4T · 3.20 GHz
2
Apple M5 Max (18-CPU 32-GPU)
18C / 18T · 4.61 GHz
3
Apple M3 Ultra (28-CPU 60-GPU)
28C / 28T · 4.06 GHz
4
Apple M2 Ultra (76-GPU)
24C / 24T · 3.50 GHz
5
Apple M5 Max (18-CPU 40-GPU)
18C / 18T · 4.61 GHz
6
Apple M3 Ultra (32-CPU 80-GPU)
32C / 32T · 4.06 GHz
7
Apple M5 Pro (15-CPU 16-GPU)
15C / 15T · 4.61 GHz
8
Apple M1 Ultra (48-GPU)
20C / 20T · 3.20 GHz
9
Intel Core Ultra 9 285
24C / 24T · 5.60 GHz
Popular Comparisons
3
24 C / 24 T · 5.60 GHz VS Apple M5 Pro (18-CPU 20-GPU)
18 C / 18 T · 4.61 GHz
5
24 C / 24 T · 5.60 GHz VS Intel Core Ultra 7 270K Plus
24 C / 24 T · 5.50 GHz
6
24 C / 24 T · 5.60 GHz VS Apple M5 Max (18-CPU 40-GPU)
18 C / 18 T · 4.61 GHz
