Intel Xeon Phi 3120A 

Released April, 2013
  • 1.1 GHz
  • 57 cores

The Coprocessor evolved from the following idea: A GPU is like ten thousand monkeys taught to do a single job while a CPU is like a group of 10 highly intelligent scientists.
by Syed-Muhammad-Usman-Pirzada (Nov, 2013)
The Xeon Phi Coprocessor family took a step into the spotlight after the opening of the Tianhe-2 Supercomputer, which coupled Intel’s Xeon Processors with the Xeon Phi Coprocessors to outstanding success.
by Usman-Pirzada (Jul, 2013)

Features Key features of the Intel Xeon Phi 3120A

clock speed

Xeon Phi 3120A
1.1 GHz
Xeon Phi 7120P
1.24 GHz
Xeon Phi 3120P
1.1 GHz

L2 cache

Xeon Phi 3120A
28.5 MB
Xeon Phi 7120P
30.5 MB
Xeon Phi 3120P
28.5 MB


Xeon Phi 3120A

Specifications Full list of technical specs


Clock speed 1.1 GHz
Cores 57 cores
Socket type PCI Express x16
Is unlocked No


Has a NX bit Yes
Supports trusted computing No
Has virtualization support No
Instruction set extensions FMA3
Supports dynamic frequency scaling No

memory controller

Memory controller Built-in
Memory type GDDR5
Channels Dual Channel
Supports ECC Yes
Maximum memory size 6,144 MB


Architecture x86-64
Threads 228 threads
L2 cache 28.5 MB
L2 cache per core 0.5 MB/core
Manufacture process 22 nm
Max CPUs 8

integrated graphics

GPU None

power consumption

TDP 300W
Annual home energy cost 72.27 $/year
Annual commercial energy cost 262.8 $/year
Typical power consumption 243.75W


Architecture FSB
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