Intel Core i7 840QM vs. Intel Xeon D-1521

CPU Comparison, Reviews and Tests
Intel Core i7 840QM
Intel Xeon D-1521

In depth comparison and review of Intel Core i7 840QM and Intel Xeon D-1521. 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.

CPUs Specifications Comparison

Intel Core i7 840QM vs. Intel Xeon D-1521 Benchmark Chart
GENERAL Intel Core i7 840QM Intel Xeon D-1521
Product Type Processor (mobile) Processor
PROCESSOR Intel Core i7 840QM Intel Xeon D-1521
Type Intel Core i7 840QM Intel Xeon D-1521
ARCHITECTURE
Processor Qty 1 1
Packaging Type 988-pin Micro FCPGA -
Compatible Processor Socket - FCBGA1667 Socket
Manufacturing Process 45 nm 14 nm
Thermal Design Power 45 W 45 W
Thermal Specification 100 °C -
PCI Express Revision 2.0 2.0/3.0
PCI Express Configurations 1x16, 2x8 X16, x4, x8
PCI Express Lanes Qty 16 32
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, Hyper-Threading Technology, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, Intel Trusted Execution Technology, Intel Turbo Boost Technology 2.0, 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 Advanced Vector Extensions 2 (AVX2.0), Intel TSX-NI, Intel OS Guard
PERFORMANCE
Number of Cores Quad-Core Quad-Core
Number of Threads 8 threads 8 threads
Clock Speed (Frequency) 1.86 GHz 2.4 GHz
Max Turbo Speed 3.2 GHz 2.7 GHz
64-bit Computing Yes -
CACHE MEMORY
Cache 8 MB 6 MB
Cache Memory Details L3 - 8 MB 6 MB
Installed Size 8 MB -
EXPANSION & CONNECTIVITY Intel Core i7 840QM Intel Xeon D-1521
Compatible Slots 1 x processor -
MISCELLANEOUS Intel Core i7 840QM Intel Xeon D-1521
Service & Support Limited warranty - 3 years -
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