Intel Xeon E3-1220V5 vs. Intel Xeon D-1521

CPU Comparison, Reviews and Tests

Side by side comparison and review of Intel Xeon E3-1220V5 and Intel Xeon D-1521. 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.

CPUs Specifications Comparison

Intel Xeon E3-1220V5 vs. Intel Xeon D-1521 Benchmark Chart
GENERAL Intel Xeon E3-1220V5 Intel Xeon D-1521
Product Type Processor Processor
PROCESSOR Intel Xeon E3-1220V5 Intel Xeon D-1521
Type Intel Xeon E3-1220V5 Intel Xeon D-1521
ARCHITECTURE
Processor Qty 1 1
Compatible Processor Socket LGA1151 Socket FCBGA1667 Socket
Manufacturing Process 14 nm 14 nm
Thermal Design Power 80 W 45 W
PCI Express Revision 3.0 2.0/3.0
PCI Express Configurations 1x16, 2x8, 1x8+2x4 X16, x4, x8
PCI Express Lanes Qty 16 32
Architecture Features Enhanced SpeedStep 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), Intel Virtualization Technology for Directed I/O (VT-d), Intel vPro Technology, Idle States, Intel Secure Key, Intel TSX-NI, Intel OS Guard, Intel Software Guard Extensions (SGX), Intel Memory Protection Extensions (MPX), Intel Boot Guard 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 4 threads 8 threads
Clock Speed (Frequency) 3 GHz 2.4 GHz
Max Turbo Speed 3.5 GHz 2.7 GHz
CACHE MEMORY
Cache 8 MB 6 MB
Cache Memory Details Smart Cache - 8 MB 6 MB
RAM
Technology DDR4 SDRAM - 2133 MHz -
MISCELLANEOUS Intel Xeon E3-1220V5 Intel Xeon D-1521
Service & Support Limited warranty - 3 years -
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