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Differences What are the advantages of each

Front view of Intel Xeon E3-1230

Reasons to consider the
Intel Xeon E3-1230

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Much lower typical power consumption 65W vs 112.55W More than 40% lower typical power consumption
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
Better PassMark score 9,315 vs 6,383 More than 45% better PassMark score
More threads 8 vs 4 Twice as many threads
Better performance per watt 9.54 pt/W vs 6.79 pt/W More than 40% better performance per watt
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 19.27 $/year vs 41.29 $/year 2.1x lower annual home energy cost
Better PassMark (Single core) score 2,095 vs 1,863 More than 10% better PassMark (Single core) score
Much lower annual commercial energy cost 70.08 $/year vs 110.03 $/year More than 35% lower annual commercial energy cost
Newer Apr, 2011 vs Jan, 2011 Release date 3 months later
Front view of Intel Core i5 2500K

Reasons to consider the
Intel Core i5 2500K

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much better performance per dollar 4.1 pt/$ vs 3.21 pt/$ Around 30% better performance per dollar
Significantly better overclocked clock speed (Air) 4.98 GHz vs 3.73 GHz Around 35% better overclocked clock speed (Air)
Significantly better overclocked clock speed (Water) 4.88 GHz vs 3.64 GHz Around 35% better overclocked clock speed (Water)
Slightly higher Maximum operating temperature 72.6 °C vs 69.1 °C More than 5% higher Maximum operating temperature

Benchmarks Real world tests of Xeon E3-1230 vs Core i5 2500K

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E3-1230
1,850,000 MB/s
Core i5 2500K
2,530,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon E3-1230
12,431
Core i5 2500K
10,319

GeekBench (64-bit) Data courtesy Primate Labs

Xeon E3-1230
13,394
Core i5 2500K
11,186

GeekBench

Xeon E3-1230
13,394
Core i5 2500K
13,624

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E3-1230  vs
Core i5 2500K 
Clock speed 3.2 GHz 3.3 GHz
Turbo clock speed 3.6 GHz 3.7 GHz
Cores Quad core Quad core
Socket type
LGA 1155

features

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

power consumption

TDP 80W 95W
Annual home energy cost 19.27 $/year 41.29 $/year
Annual commercial energy cost 70.08 $/year 110.03 $/year
Performance per watt 9.54 pt/W 6.79 pt/W
Typical power consumption 65W 112.55W

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3
Channels Dual Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 21,333.32 MB/s 21,333.32 MB/s
Maximum memory size 32,768 MB 32,768 MB

details

Xeon E3-1230  vs
Core i5 2500K 
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 32 nm 32 nm
Max CPUs 1 1
Clock multiplier 32 33
Operating temperature Unknown - 69.1°C 5 - 72.6°C

overclocking

Overclock popularity 4 3,179
Overclocked clock speed 3.73 GHz 4.98 GHz
Overclocked clock speed (Water) 3.64 GHz 4.88 GHz
PassMark (Overclocked) 5,523.6 5,433.6
Overclocked clock speed (Air) 3.73 GHz 4.98 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics 3000
Latest DirectX N/A 10.1
Number of displays supported N/A 2
GPU clock speed N/A 850 MHz
Turbo clock speed N/A 1,100 MHz
3DMark06 N/A 5,275

bus

Architecture DMI DMI
Number of links 1 1
Transfer rate 5,000 MT/s 5,000 MT/s
Intel Xeon E3-1230
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Intel Core i5 2500K
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