Intel Xeon E5405 vs. Intel Xeon E3-1275

CPU Comparison, Reviews and Tests
Intel Xeon E5405
Intel Xeon E3-1275

In depth comparison and review of Intel Xeon E5405 and Intel Xeon E3-1275. 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 Xeon E5405 vs. Intel Xeon E3-1275 Benchmark Chart
GENERAL Intel Xeon E5405 Intel Xeon E3-1275
Product Type Processor Processor
PROCESSOR Intel Xeon E5405 Intel Xeon E3-1275
Type Intel Xeon E5405 Intel Xeon E3-1275
ARCHITECTURE
Processor Qty 1 1
Packaging Type FC-LGA6 -
Compatible Processor Socket LGA771 Socket LGA1155 Socket
Manufacturing Process 45 nm 32 nm
Thermal Design Power 80 W 95 W
Thermal Specification 67 °C 72.6 °C
PCI Express Revision - 2.0
PCI Express Lanes Qty - 20
Architecture Features Demand Based Switching, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, Intel Advanced Smart Cache Hyper-Threading Technology, Demand Based Switching, Execute Disable Bit capability, Intel Virtualization Technology, Intel 64 Technology, Intel Trusted Execution Technology, streaming SIMD extensions 4.1, streaming SIMD extensions 4.2, Intel Fast Memory Access, Intel Flex Memory Access, Intel Turbo Boost Technology 2.0, Intel Advanced Vector Extensions (AVX), Intel AES New Instructions (AES-NI)
PERFORMANCE
Number of Cores Quad-Core Quad-Core
Number of Threads - 8 threads
Clock Speed (Frequency) 2 GHz 3.4 GHz
Max Turbo Speed - 3.8 GHz
Bus Speed 1333 MHz -
64-bit Computing Yes Yes
CACHE MEMORY
Cache 12 MB 8 MB
Cache Level 1 Size - 256 KB
Cache Memory Details L2 - 12 MB Smart Cache - 8 MB
Installed Size 12 MB 8 MB
Type Advanced Smart Cache -
INTEGRATED GRAPHICS (GPU) Intel Xeon E5405 Intel Xeon E3-1275
Type - Intel HD Graphics P3000
Base Frequency - 850 MHz
Max Dynamic Frequency - 1.35 GHz
Features - Dual Display Capable, Intel FDI, Intel Clear Video HD Technology, InTRU 3D Technology, Intel Quick Sync Video
EXPANSION & CONNECTIVITY Intel Xeon E5405 Intel Xeon E3-1275
Compatible Slots 1 x processor 1 x processor - LGA1155 Socket
MISCELLANEOUS Intel Xeon E5405 Intel Xeon E3-1275
Included Accessories Alcohol pad, thermal grease Heat sink
Compliant Standards - Halogen-free
Service & Support Limited warranty - 3 years Limited warranty - 3 years
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