Intel Xeon E3-1225 vs Intel Xeon E3-1245 v2

Physical Specifications

Socket Intel Socket 1155 Intel Socket 1155
Foundry Intel Intel
Process size 32 nm 22 nm
Transistors 1,160 million 1,400 million
Die size 216 mm² 160 mm²
Package FC-LGA10 FC-LGA12C


Frequency 3.1 GHz 3.4 GHz
Turbo clock up to 3.4 GHz up to 3.8 GHz
Base clock 100 MHz 100 MHz
Multiplier 31.0x 34.0x
Multiplier unlocked No No
TDP 95 W 77 W

Architecture Details

Vertical Segment Server/Workstation Server/Workstation
Production status End-of-life unknown
Release date Apr 3rd, 2011 May 14th, 2012
Codename Sandy Bridge Ivy Bridge
Generation Xeon E3 Xeon E3
Part SR00G SR0P9
Memory support DDR3 Dual-channel DDR3 Dual-channel
ECC memory Yes Yes
PCI Express Gen 3, 16 Lanes(CPU only) Gen 3, 16 Lanes(CPU only)


Total Cores 4 4
Total Threads 4 8
SMP # CPUs 1 1
Integrated graphics Intel HD P3000 Intel HD P4000


Cache L1 64K (per core) 64K (per core)
Cache L2 256K (per core) 256K (per core)
Cache L3 6MB (shared) 8MB (shared)

Features & Technologies

AES-NI Yes Yes
AVX Yes Yes
EIST Yes Yes
Intel 64 Yes Yes
MMX Yes Yes
SSE Yes Yes
SSE2 Yes Yes
SSE3 Yes Yes
SSE4.2 Yes Yes
SSSE3 Yes Yes
TXT Yes Yes
VT-d Yes Yes
VT-x Yes Yes
XD bit Yes Yes


Notes Intel HD P4000 frequency: 650-1250MHz


Sysrqmts browser extension icon
Stop overpaying for PC games!
See cheapest prices in Steam store with our browser extension.