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Intel Core i7-1255U vs Intel Pentium D 915
Last updated:
Benchmarks
Performance Overview
Average performance across multiple benchmarks
Single-core performance
Multi-core performance
Cinebench R23 Single-Core
Single-core performance
Intel Core i7-1255U
100 %
10C / 12T · 4.70 GHz
Intel Pentium D 915
10 %
2C / 2T · 2.80 GHz
Cinebench R23 Multi-Core
Multi-core performance
Intel Core i7-1255U
100 %
10C / 12T · 2.70 GHz
2C / 2T · 2.80 GHz
Cinebench R20 Single-Core
Single-core performance
Intel Core i7-1255U
100 %
10C / 12T · 4.70 GHz
Intel Pentium D 915
11 %
2C / 2T · 2.80 GHz
Geekbench 5, 64bit Single-Core
Single-core performance
Intel Core i7-1255U
100 %
10C / 12T · 4.70 GHz
Intel Pentium D 915
13 %
2C / 2T · 2.80 GHz
Cinebench R20 Multi-Core
Multi-core performance
Intel Core i7-1255U
100 %
10C / 12T · 2.70 GHz
2C / 2T · 2.80 GHz
Geekbench 5, 64bit Multi-Core
Multi-core performance
Intel Core i7-1255U
100 %
10C / 12T · 2.70 GHz
2C / 2T · 2.80 GHz
Cinebench R15 (Single-Core)
Single-core performance
Intel Core i7-1255U
100 %
10C / 12T · 4.70 GHz
Intel Pentium D 915
13 %
2C / 2T · 2.80 GHz
Cinebench R15 (Multi-Core)
Multi-core performance
Intel Core i7-1255U
100 %
10C / 12T · 2.70 GHz
2C / 2T · 2.80 GHz
More benchmarks
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
Cinebench R20 (SC)
666 entries
666 entries
Geekbench 5 (SC)
2,512 entries
2,512 entries
Cinebench R20 (MC)
615 entries
615 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
V-Ray CPU-Render
251 entries
251 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
Cinebench R11.5 (SC)
826 entries
826 entries
Cinebench R11.5 iGPU
383 entries
383 entries
Specifications
At a glance
|
Wischen
|
Intel Core i7-1255U | Intel Pentium D 915 |
|---|---|---|
| Family | Intel Core i7 (300) | Intel Pentium (150) |
| CPU group | Intel Core i 1200P/1200U (21) | Intel Pentium D (6) |
| Architecture | Alder Lake U | Presler |
| Technology | 10 nm | 65 nm |
| Segment | Notebook | Desktop |
| Socket | BGA 1744 | LGA 775 |
| Predecessor | ||
| Successor | Intel Core i7-1355U |
CPU Cores and Base Frequency
|
Wischen
|
Intel Core i7-1255U | Intel Pentium D 915 |
|---|---|---|
| CPU Cores / Threads | 10 / 12 | 2 / 2 |
| Hyperthreading / SMT | ✓ | ✗ |
| Core architecture | hybrid (big.LITTLE) | normal |
| Core Cluster 1: | 2x Golden Cove 1.70 - 4.70 GHz |
2x 2.80 GHz |
| Core Cluster 2: | 8x Gracemont 1.20 - 3.50 GHz |
|
| L2-Cache | 6.50 MB | 4.00 MB |
| L3-Cache | 12.00 MB | |
| Overclocking | ✗ | ✗ |
Integrated graphics (iGPU)
|
Wischen
|
Intel Core i7-1255U | Intel Pentium D 915 |
|---|---|---|
| GPU name | Intel Iris Xe Graphics 96 (Alder Lake) | no iGPU |
| GPU frequency | 0.35 - 1.25 GHz | |
| CUs / Shader | 96 / 768 | / |
| Raytracing | ✗ | ✗ |
| Max. displays | 4 | |
| Max. GPU Memory | 32 GB | |
| Technology | 10 nm | |
| Release date | Q1/2022 |
NPU AI performance
|
Wischen
|
Intel Core i7-1255U | Intel Pentium D 915 |
|---|---|---|
| AI hardware | ||
| AI specifications | ||
| NPU + CPU + iGPU |
Memory & PCIe
|
Wischen
|
Intel Core i7-1255U | Intel Pentium D 915 |
|---|---|---|
| Memory | LPDDR5-5200 (83.2 GB/s) DDR5-4800 (76.8 GB/s) LPDDR4X-4266 (68.2 GB/s) DDR4-3200 (51.2 GB/s) | DDR2 |
| Max. Memory | 64 GB | |
| Memory channels | 2 | 0 |
| ECC | No | No |
| PCIe | 4.0 x 28 | |
| PCIe Bandwidth | 55.1 GB/s |
Thermal Management
|
Wischen
|
Intel Core i7-1255U | Intel Pentium D 915 |
|---|---|---|
| TDP | 15 W | 95 W |
| TDP (PL2) | 55 W | |
| TDP up | ||
| TDP down | ||
| T. junction max. | 100 °C |
Technical details
|
Wischen
|
Intel Core i7-1255U | Intel Pentium D 915 |
|---|---|---|
| Chip design | Monolithic | Monolithic |
| AES-NI | ✓ | ✗ |
| Operating systems | Windows 10, Windows 11, Linux | Windows 10, Linux |
| Instruction set | x86-64 (64 bit) | x86-64 (64 bit) |
| ISA extensions | SSE4.1, SSE4.2, AVX2 | |
| Release date | Q1/2022 | Q3/2006 |
| Release price | 74 $ | |
| 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 i7-1255U is 4.1 stars (122 ratings), while Intel Pentium D 915 has received 2.2 stars (5 ratings).
Click on the stars to rate one or both processors.
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Intel Pentium D 915
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