X1150 vs 4256 EE: comparison

Comparison of X1150 and 4256 EE: key differences and a full specification table.

Key differences

X1150 has a higher base clock (2 GHz vs 1.6 GHz), a lower TDP (17 W vs 35 W) and a finer process node (28 nm vs 32 nm).

At the same time, 4256 EE has more cores (8 vs 4) and more threads (8 vs 4).

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

ParameterX11504256 EE
Cores / threads 4 / 4 8 / 8
Max boost clock — 2.8 GHz
L3 cache — 8 MB
TDP 17 W 35 W
Process 28 nm 32 nm

Full specification table

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

Parameter X1150 4256 EE
General
Segment Server Server
Product line AMD Opteron X1100 Series Processors AMD Opteron 4200 Series Processor
Product family AMD Opteron AMD Opteron
Process 28 nm 32 nm
Unlocked for overclocking No No
CPU
Cores 4 8
Threads 4 8
Base clock 2 GHz 1.6 GHz
Max boost clock — 2.8 GHz
L1 cache — 384 KB
L2 cache 2 MB 8 MB
L3 cache — 8 MB
TDP 17 W 35 W
Memory
Memory types DDR3 DDR3
Max memory speed 800 MHz 1.6 GHz
Graphics
Has integrated graphics No No
Package and thermal
Sockets supported FT3 C32
TJUNCTION 70 °C 64 °C
Identifiers
Product ID (OEM) OX1150IPJ44HM OS4256HJU8KGU

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