| Product | Celeron B815 | Celeron N2840 |
| Brand | Intel | Intel |
| Street Price (Approx) | Search low Celeron B815 price (Amazon) | ~ $107 Search low Celeron N2840 price (Amazon) |
| # CPU Cores | 2 | 2 |
| Frequency (GHz) | 1.6 GHz | 2.16 GHz |
| TDP (Watts) | 35 W | 7.5 W |
| Product Segment | Mobile | |
| Status | Released | Released |
| Announced On | 2012-01-01 | 2014-06-01 |
| Technicals | Celeron B815 | Celeron N2840 |
| Dimensions (2D) | 37.5x37.5 mm | 25x25 mm |
| Conflict Free? | 1 | |
| # CPU Cores | 2 | 2 |
| Threads/Core | 2 | 2 |
| Frequency (GHz) | 1.6 GHz | 2.16 GHz |
| Cache L2 (MB) | 1 | |
| Instructions Width (bits) | 64 | 64 |
| Instructions Extensions | SSE4.x | |
| Lithography Process (nm) | 32 nm | 22 nm |
| TDP (Watts) | 35 W | 7.5 W |
| Max RAM | 16 GB | 8 GB |
| RAM Types | DDR3 1066/1333 | DDR3L 1333 |
| # Memory Channels | 2 | 2 |
| Memory Bandwidth (GB/Sec) | 21.3GB/s | 21.32GB/s |
| Max CPU Temp. | 100 | 100 |
| Max CPU / Package | 1 | 1 |
| PCI-E Version | 2 | 2 |
| PCI-E Configurations | 1x16, 2x8, 1x8 2x4 | 1x4 |
| PCI-E Max Lanes # | 16 | 4 |
| Compatible Sockets | FCPGA988 | FCBGA1170 |
| Intel Turbo Boost Version |
| Intel V-Pro | No | No |
| Intel Hyper-Thread | No | No |
| Intel Virtualization (VTX) | Yes | Yes |
| Intel Directed I/O (VTD) | No | No |
| Intel 64 | Yes | Yes |
| Intel MyWiFi | No | |
| Idle States | Yes | Yes |
| Thermal MonitoringTech. | Yes | |
| Flex Memory | Yes | |
| Intel AES New Instructions | No | No |
| Intel Secure Key | Yes | |
| Trusted Execution | No | |
| Execution Disable | Yes | Yes |