Сопроцессор Intel Xeon Phi 3120A vs Сопроцессор Intel Xeon Phi 7120X: comparison

Comparison of Сопроцессор Intel Xeon Phi 3120A and Сопроцессор Intel Xeon Phi 7120X: key differences and a full specification table.

Key differences

Сопроцессор Intel Xeon Phi 7120X has more cores (61 vs 57), a higher base clock (1.24 GHz vs 1.1 GHz), a higher maximum memory size (16 GB vs 6 GB) and more memory channels (16 vs 12).

Both processors match on: TDP (300 W), process node (22 nm), PCIe version (2).

These are specification values: they show differences between the models but do not determine a performance winner. For a specific workload, rely on independent benchmarks.

Key specifications

ParameterСопроцессор Intel Xeon Phi 3120AСопроцессор Intel Xeon Phi 7120X
Cores / threads 57 61
Max boost clock — 1.33 GHz
TDP 300 W 300 W
Process 22 nm 22 nm

Full specification table

Differing values are highlighted. This is not a better/worse rating: numbers from different architectures are not always comparable.

Parameter Сопроцессор Intel Xeon Phi 3120A Сопроцессор Intel Xeon Phi 7120X
General
Model 3120A 7120X
Codename Knights Corner Knights Corner
Segment Server Server
Product line Семейство продукции Intel Xeon Phi x100 Семейство продукции Intel Xeon Phi x100
Process 22 nm 22 nm
Launch date Q2 2013 Q2 2013
Status Discontinued Discontinued
Servicing status End of Servicing Updates End of Servicing Updates
Embedded options available No No
CPU
Cores 57 61
Base clock 1.1 GHz 1.24 GHz
Max boost clock — 1.33 GHz
L2 cache 28.5 MB 30.5 MB
TDP 300 W 300 W
Turbo Boost No Yes (1)
Instruction set width 64 bit 64 bit
Instruction set extensions IMCI IMCI
Memory
Max memory size 6 GB 16 GB
Memory channels 12 16
Max memory bandwidth 240 GB/s 352 GB/s
ECC memory supported Yes Yes
I/O and interfaces
PCI Express revision 2 2

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