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Differences What are the advantages of each

Front view of Intel Xeon E3-1125C v2

Reasons to consider the
Intel Xeon E3-1125C v2

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Much lower typical power consumption 32.5W vs 68.25W 2.1x lower typical power consumption
Much higher Maximum operating temperature 100 °C vs 72.72 °C Around 40% higher Maximum operating temperature
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Slightly more l3 cache 8 MB vs 6 MB Around 35% more l3 cache; more data can be stored in the l3 cache for quick access later
More threads 8 vs 4 Twice as many threads
More l3 cache per core 2 MB/core vs 1.5 MB/core Around 35% more l3 cache per core
Much lower annual home energy cost 9.64 $/year vs 20.24 $/year 2.1x lower annual home energy cost
Much lower annual commercial energy cost 35.04 $/year vs 73.58 $/year 2.1x lower annual commercial energy cost
Newer Jul, 2013 vs Apr, 2013 Release date 3 months later
Front view of Intel Core i5 4670K

Reasons to consider the
Intel Core i5 4670K

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Significantly higher clock speed 3.4 GHz vs 2.5 GHz More than 35% higher clock speed
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much better overclocked clock speed (Air) 4.48 GHz vs 2 GHz Around 2.2x better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.55 GHz vs 2 GHz More than 2.2x better overclocked clock speed (Water)

Features Key features of the Xeon E3-1125C v2  vs Core i5 4670K 

clock speed

L2 cache

L3 cache

overclocked clock speed (air)

overclocked clock speed (water)

Specifications Full list of technical specs

summary

Xeon E3-1125C v2  vs
Core i5 4670K 
Clock speed 2.5 GHz 3.4 GHz
Cores Quad core Quad core
Is unlocked No Yes

features

Has a NX bit Yes Yes
Supports trusted computing Yes No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
F16C
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
FMA3
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 40W 84W
Annual home energy cost 9.64 $/year 20.24 $/year
Annual commercial energy cost 35.04 $/year 73.58 $/year
Typical power consumption 32.5W 68.25W

bus

Architecture DMI 2.0 DMI 2.0
Number of links 1 0
Transfer rate 5,000 MT/s 5,000 MT/s

details

Xeon E3-1125C v2  vs
Core i5 4670K 
Architecture x86-64 x86-64
Threads 8 4
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 8 MB 6 MB
L3 cache per core 2 MB/core 1.5 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 1 1
Operating temperature 0 - 100°C Unknown - 72.72°C

overclocking

Overclocked clock speed 2 GHz 4.48 GHz
Overclocked clock speed (Water) 2 GHz 4.55 GHz
Overclocked clock speed (Air) 2 GHz 4.48 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics 4600
Number of displays supported N/A 3
GPU clock speed N/A 350 MHz
Turbo clock speed N/A 1,200 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3L-1600
DDR3-1333
DDR3
Channels Dual Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 12,800 MB/s 25,600 MB/s
Maximum memory size 32,768 MB 32,768 MB
Intel Xeon E3-1125C v2
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Intel Core i5 4670K
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