In depth comparison and review of Intel Core i7 840QM and Intel Celeron G3900. Compare dimensions, performance, cache memory, number of cores, clock speed, RAM, power efficiency and other important specifications and features to easily choose the right CPU for you. Our goal is to help you uncover differences between the products and find the processor that will best fit your needs.
| GENERAL | Intel Core i7 840QM | Intel Celeron G3900 |
|---|
| Product Type | Processor (mobile) | Processor |
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| PROCESSOR | Intel Core i7 840QM | Intel Celeron G3900 |
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| Type | Intel Core i7 840QM | Intel Celeron G3900 |
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| ARCHITECTURE |
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| Processor Qty | 1 | 1 |
|---|---|---|
| Packaging Type | 988-pin Micro FCPGA | - |
| Compatible Processor Socket | - | LGA1151 Socket |
| Manufacturing Process | 45 nm | 14 nm |
| Thermal Design Power | 45 W | 51 W |
| Thermal Specification | 100 °C | - |
| PCI Express Revision | 2.0 | 3.0 |
| PCI Express Configurations | 1x16, 2x8 | 1x16, 2x8, 1x8+2x4 |
| PCI Express Lanes Qty | 16 | 16 |
| Architecture Features | Enhanced SpeedStep technology, Hyper-Threading Technology, Execute Disable Bit capability, Intel Virtualization Technology, Intel Turbo Boost Technology, Intel 64 Technology, Intel Trusted Execution Technology, Enhanced Halt State (C1E), streaming SIMD extensions 4.2 | Enhanced SpeedStep technology, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, streaming SIMD extensions 4.1, streaming SIMD extensions 4.2, Intel AES New Instructions (AES-NI), Thermal Monitoring Technologies, Intel Virtualization Technology for Directed I/O (VT-d), Idle States, Intel VT-x with Extended Page Tables (EPT), Intel Secure Key, Intel Software Guard Extensions (SGX) |
| PERFORMANCE |
|---|
| Number of Cores | Quad-Core | Dual-Core |
|---|---|---|
| Number of Threads | 8 threads | 2 threads |
| Clock Speed (Frequency) | 1.86 GHz | 2.8 GHz |
| Max Turbo Speed | 3.2 GHz | - |
| 64-bit Computing | Yes | - |
| CACHE MEMORY |
|---|
| Cache | 8 MB | 2 MB |
|---|---|---|
| Cache Memory Details | L3 - 8 MB | Smart Cache - 2 MB |
| Installed Size | 8 MB | - |
| INTEGRATED GRAPHICS (GPU) | Intel Core i7 840QM | Intel Celeron G3900 |
|---|
| Type | - | Intel HD Graphics 510 |
|---|---|---|
| Base Frequency | - | 350 MHz |
| Max Dynamic Frequency | - | 950 MHz |
| Max Supported Memory Size | - | 64 GB |
| Max Supported Resolution | - | 4096x2304@24Hz (HDMI), 4096x2304@60Hz (eDP), 4096x2304@60Hz (DP) |
| Features | - | Intel Clear Video Technology, Intel Clear Video HD Technology, InTRU 3D Technology, Intel Quick Sync Video, Intel Wireless Display (WiDi), Intel Insider, Triple Display Capable |
| EXPANSION & CONNECTIVITY | Intel Core i7 840QM | Intel Celeron G3900 |
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| Compatible Slots | 1 x processor | - |
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| MISCELLANEOUS | Intel Core i7 840QM | Intel Celeron G3900 |
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| Service & Support | Limited warranty - 3 years | Limited warranty - 3 years |
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