| Product | Celeron 3955U | Core i7-7660U |
| Brand | Intel | Intel |
| Street Price (Approx) | ~ $107 Search low Celeron 3955U price (Amazon) | ~ $415 Search low Core i7-7660U price (Amazon) |
| # CPU Cores | 2 | 2 |
| Frequency (GHz) | 2 GHz | 2.5 GHz |
| Cache (MB) | 2 | 4 |
| TDP (Watts) | 15 W | 15 W |
| Product Segment | Mobile | Mobile |
| Status | Released | Released |
| Announced On | 2015-10-01 | 2017-01-01 |
| Technicals | Celeron 3955U | Core i7-7660U |
| Dimensions (2D) | 42x42 mm | 42x42 mm |
| Conflict Free? | 1 | 1 |
| # CPU Cores | 2 | 2 |
| Threads/Core | 2 | 4 |
| Frequency (GHz) | 2 GHz | 2.5 GHz |
| Turbo Frequency (GHz) | 4 GHz | |
| Cache (MB) | 2 | 4 |
| Instructions Width (bits) | 64 | 64 |
| Instructions Extensions | SSE4.1/4.2 | SSE4.1/4.2, AVX 2.0 |
| Lithography Process (nm) | 14 nm | 14 nm |
| TDP (Watts) | 15 W | 15 W |
| TDP Down (W) | 10 | 9.5 |
| Max RAM | 32 GB | 32 GB |
| RAM Types | DDR4-1866/2133, LPDDR3-1600/1866 | DDR4-2133, LPDDR3-1866, DDR3L-1600 |
| # Memory Channels | 2 | 2 |
| Memory Bandwidth (GB/Sec) | 34.1GB/s | 34.1GB/s |
| Max CPU Temp. | 100 | |
| Max CPU / Package | 1 | 1 |
| GPU | Intel® Iris™ Plus Graphics 640 | |
| PCI-E Version | 2 | 3 |
| PCI-E Configurations | 1x4, 2x2, 1x2+2x1 , 4x1 | |
| PCI-E Max Lanes # | 10 | 12 |
| Compatible Sockets | FCBGA1356 | FCBGA1356 |
| Intel Turbo Boost Version | 2 |
| Intel V-Pro | No | Yes |
| Intel Hyper-Thread | No | Yes |
| Intel Virtualization (VTX) | Yes | Yes |
| Intel Directed I/O (VTD) | Yes | Yes |
| Intel Ext. Page Tables (EPT) | Yes | Yes |
| Intel TSX Sync. Extensions | No | Yes |
| Intel 64 | Yes | Yes |
| Intel MyWiFi | Yes | Yes |
| Idle States | Yes | Yes |
| Enhanced Speedstep | Yes | |
| Thermal MonitoringTech. | Yes | Yes |
| Flex Memory | Yes | Yes |
| Intel ID Protect | Yes | Yes |
| Intel SIPP | No | Yes |
| Intel SMB Advantage | No | |
| Smart Response Technology | Yes | Yes |
| Intel AES New Instructions | Yes | Yes |
| Intel Secure Key | Yes | Yes |
| Intel SGX | Yes | |
| Intel MPX | Yes | |
| Intel OS Guard | No | Yes |
| Trusted Execution | No | Yes |
| Execution Disable | Yes | Yes |