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Intel Core i5-661 vs Intel Core Ultra 7 155H
Last updated:
Benchmarks
Performance Overview
Average performance across multiple benchmarks
Single-core performance
Multi-core performance
Geekbench 5, 64bit Single-Core
Single-core performance
Intel Core i5-661
34 %
2C / 4T · 3.60 GHz
Intel Core Ultra 7 155H
100 %
16C / 22T · 4.80 GHz
Geekbench 5, 64bit Multi-Core
Multi-core performance
Intel Core i5-661
11 %
2C / 4T · 3.33 GHz
Intel Core Ultra 7 155H
100 %
16C / 22T · 4.20 GHz
iGPU - FP32 Performance (Single-precision GFLOPS)
Intel HD Graphics (Westmere)
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 Core i5-661 | Intel Core Ultra 7 155H |
|---|---|---|
| Family | Intel Core i5 (336) | Intel Core Ultra 7 (31) |
| CPU group | Intel Core i5 600 (6) | Intel Core Ultra 100H (5) |
| Architecture | Clarkdale | Meteor Lake H |
| Technology | 32 nm | 7 nm |
| Segment | Desktop | Notebook |
| Socket | LGA 1156 | BGA 2049 |
| Predecessor | ||
| Successor | Intel Core Ultra 7 255H |
CPU Cores and Base Frequency
|
Wischen
|
Intel Core i5-661 | Intel Core Ultra 7 155H |
|---|---|---|
| CPU Cores / Threads | 2 / 4 | 16 / 22 |
| Hyperthreading / SMT | ✓ | ✓ |
| Core architecture | normal | hybrid (big.LITTLE) |
| Core Cluster 1: | 2x 3.33 - 3.60 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 | 4.00 MB | 24.00 MB |
| Overclocking | ✗ | ✗ |
Integrated graphics (iGPU)
|
Wischen
|
Intel Core i5-661 | Intel Core Ultra 7 155H |
|---|---|---|
| GPU name | Intel HD Graphics (Westmere) | Intel Iris Xe 8 Core Graphics 128 EUs (Meteor Lake) |
| GPU frequency | 0.50 - 0.90 GHz | 0.60 - 2.25 GHz |
| CUs / Shader | 12 / 24 | 128 / 1024 |
| Raytracing | ✗ | ✓ |
| Max. displays | 2 | 4 |
| Max. GPU Memory | 2 GB | 32 GB |
| Technology | 32 nm | 5 nm |
| Release date | Q1/2010 | Q4/2023 |
NPU AI performance
|
Wischen
|
Intel Core i5-661 | 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 Core i5-661 | Intel Core Ultra 7 155H |
|---|---|---|
| Memory | DDR3-1333 (21.3 GB/s) DDR3-1066 (17.1 GB/s) | LPDDR5X-7500 (120.0 GB/s) DDR5-5600 (89.6 GB/s) |
| Max. Memory | 16 GB | 96 GB |
| Memory channels | 2 | 2 |
| ECC | No | No |
| PCIe | 2.0 x 16 | 5.0 x 20 |
| PCIe Bandwidth | 8.0 GB/s | 78.8 GB/s |
Thermal Management
|
Wischen
|
Intel Core i5-661 | Intel Core Ultra 7 155H |
|---|---|---|
| TDP | 73 W | 28 W |
| TDP (PL2) | 115 W | |
| TDP up | 65 W | |
| TDP down | 20 W | |
| T. junction max. | 110 °C |
Technical details
|
Wischen
|
Intel Core i5-661 | Intel Core Ultra 7 155H |
|---|---|---|
| Chip design | Monolithic | Chiplet |
| AES-NI | ✓ | ✓ |
| Operating systems | Windows 10, Linux | 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 | Q1/2010 | Q4/2023 |
| Release price | 177 $ | |
| 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 i5-661 is 5.0 stars (1 ratings), while Intel Core Ultra 7 155H has received 3.9 stars (539 ratings).
Click on the stars to rate one or both processors.
Most popular CPUs in both categories
1
Intel Core i5-661
2C / 4T · 3.60 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 M3 Ultra (32-CPU 80-GPU)
32C / 32T · 4.06 GHz
6
Apple M5 Pro (15-CPU 16-GPU)
15C / 15T · 4.61 GHz
7
Apple M5 Max (18-CPU 40-GPU)
18C / 18T · 4.61 GHz
8
Apple M1 Ultra (48-GPU)
20C / 20T · 3.20 GHz
9
Intel Core Ultra 7 155H
16C / 22T · 4.80 GHz
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