In depth comparison and review of Intel Celeron B820 and Intel Core i7 840QM. 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 Celeron B820 | Intel Core i7 840QM |
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Product Type | Processor (mobile) | Processor (mobile) |
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PROCESSOR | Intel Celeron B820 | Intel Core i7 840QM |
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Type | Intel Celeron B820 | Intel Core i7 840QM |
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ARCHITECTURE |
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Processor Qty | 1 | 1 |
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Packaging Type | - | 988-pin Micro FCPGA |
Compatible Processor Socket | PGA988 Socket | - |
Manufacturing Process | 32 nm | 45 nm |
Thermal Design Power | 35 W | 45 W |
Thermal Specification | 100 °C | 100 °C |
PCI Express Revision | 2.0 | 2.0 |
PCI Express Configurations | 1x16, 2x8, 1x8+2x4 | 1x16, 2x8 |
PCI Express Lanes Qty | 16 | 16 |
Architecture Features | 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 | 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 |
PERFORMANCE |
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Number of Cores | Dual-Core | Quad-Core |
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Number of Threads | 2 threads | 8 threads |
Clock Speed (Frequency) | 1.7 GHz | 1.86 GHz |
Max Turbo Speed | - | 3.2 GHz |
64-bit Computing | - | Yes |
CACHE MEMORY |
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Cache | 2 MB | 8 MB |
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Cache Memory Details | L3 - 2 MB | L3 - 8 MB |
Installed Size | 2 MB | 8 MB |
INTEGRATED GRAPHICS (GPU) | Intel Celeron B820 | Intel Core i7 840QM |
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Type | Intel HD Graphics with Dynamic Frequency | - |
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Base Frequency | 650 MHz | - |
Max Dynamic Frequency | 1.05 GHz | - |
Features | Intel FDI | - |
EXPANSION & CONNECTIVITY | Intel Celeron B820 | Intel Core i7 840QM |
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Compatible Slots | - | 1 x processor |
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MISCELLANEOUS | Intel Celeron B820 | Intel Core i7 840QM |
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Service & Support | - | Limited warranty - 3 years |
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