Side by side comparison and review of Intel Core i7 3820QM (3rd Gen) and Intel Celeron B820. Compare overall performance, core and thread counts, cache memory, speed, power efficiency, dimensions, socket compatibility and other key specifications and features to simplify the choice of your perfect CPU. Our goal is to make it easier for you to decide on the processor that will best meet your expectations by revealing the main differences between the products.
GENERAL | Intel Core i7 3820QM (3rd Gen) | Intel Celeron B820 |
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Product Type | Processor (mobile) | Processor (mobile) |
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PROCESSOR | Intel Core i7 3820QM (3rd Gen) | Intel Celeron B820 |
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Type | Intel Core i7 3820QM (3rd Gen) | Intel Celeron B820 |
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ARCHITECTURE |
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Processor Qty | 1 | 1 |
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Compatible Processor Socket | PGA988 Socket | PGA988 Socket |
Manufacturing Process | 22 nm | 32 nm |
Thermal Design Power | 45 W | 35 W |
Thermal Specification | 105 °C | 100 °C |
PCI Express Revision | 3.0 | 2.0 |
PCI Express Configurations | 1x16, 2x8, 1x8+2x4 | 1x16, 2x8, 1x8+2x4 |
PCI Express Lanes Qty | 16 | 16 |
Architecture Features | Hyper-Threading Technology, Intel Turbo Boost Technology 2.0, Intel vPro Technology | Enhanced SpeedStep technology, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, Intel Fast Memory Access, Intel Flex Memory Access, Thermal Monitoring Technologies, Idle States |
PERFORMANCE |
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Number of Cores | Quad-Core | Dual-Core |
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Number of Threads | 8 threads | 2 threads |
Clock Speed (Frequency) | 2.7 GHz | 1.7 GHz |
Max Turbo Speed | 3.7 GHz | - |
64-bit Computing | Yes | - |
CACHE MEMORY |
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Cache | 8 MB | 2 MB |
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Cache Memory Details | L3 - 8 MB | L3 - 2 MB |
Installed Size | 8 MB | 2 MB |
INTEGRATED GRAPHICS (GPU) | Intel Core i7 3820QM (3rd Gen) | Intel Celeron B820 |
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Type | Intel HD Graphics 4000 | Intel HD Graphics with Dynamic Frequency |
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Base Frequency | 650 MHz | 650 MHz |
Max Dynamic Frequency | 1.25 GHz | 1.05 GHz |
Features | Dual Display Capable, Intel FDI, Intel Clear Video HD Technology, InTRU 3D Technology, Intel Quick Sync Video, Intel Wireless Display (WiDi), Intel Insider | Intel FDI |
MISCELLANEOUS | Intel Core i7 3820QM (3rd Gen) | Intel Celeron B820 |
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Compliant Standards | Halogen-free | - |
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Service & Support | Limited warranty - 3 years | - |