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Differences What are the advantages of each

Front view of Intel Xeon E5 2640 v2

Reasons to consider the
Intel Xeon E5 2640 v2

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Significantly more l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Significantly more l3 cache 20 MB vs 8 MB 2.5x more l3 cache; more data can be stored in the l3 cache for quick access later
Much better geekbench 3 Multi-Core score 17,132 vs 12,524 More than 35% better geekbench 3 Multi-Core score
Supports more RAM 786,432 MB vs 32,768 MB Supports 24x more RAM
More cores 8 vs 4 Twice as many cores; run more applications at once
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
More threads 16 vs 8 Twice as many threads
Significantly better performance per watt 10.5 pt/W vs 7.25 pt/W Around 45% better performance per watt
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Higher Maximum operating temperature 75 °C vs 67.4 °C More than 10% higher Maximum operating temperature
Front view of Intel Core i7 3770

Reasons to consider the
Intel Core i7 3770

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Much higher clock speed 3.4 GHz vs 2 GHz 70% higher clock speed
Much higher turbo clock speed 3.9 GHz vs 2.5 GHz More than 55% higher turbo clock speed
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much better performance per dollar 2.33 pt/$ vs 1.14 pt/$ More than 2x better performance per dollar
Significantly better geekbench 3 single core score 3,236 vs 2,004 More than 60% better geekbench 3 single core score
Much better overclocked clock speed (Air) 4.03 GHz vs 2.55 GHz Around 60% better overclocked clock speed (Air)
Lower typical power consumption 62.56W vs 77.19W Around 20% lower typical power consumption
Much better overclocked clock speed (Water) 4.32 GHz vs 2 GHz Around 2.2x better overclocked clock speed (Water)
Lower annual home energy cost 18.55 $/year vs 22.89 $/year Around 20% lower annual home energy cost
Lower annual commercial energy cost 67.45 $/year vs 83.22 $/year Around 20% lower annual commercial energy cost

Benchmarks Real world tests of Xeon E5 2640 v2 vs Core i7 3770

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 E5 2640 v2
1,385,000 MB/s
Core i7 3770
2,660,000 MB/s

Specifications Full list of technical specs

summary

Xeon E5 2640 v2  vs
Core i7 3770 
Clock speed 2 GHz 3.4 GHz
Turbo clock speed 2.5 GHz 3.9 GHz
Cores Octa core Quad core
Socket type
LGA 2011
LGA 1155
Is unlocked No No

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 95W 77W
Annual home energy cost 22.89 $/year 18.55 $/year
Annual commercial energy cost 83.22 $/year 67.45 $/year
Performance per watt 10.5 pt/W 7.25 pt/W
Typical power consumption 77.19W 62.56W

bus

Architecture QPI DMI
Number of links 2 1
Transfer rate 7,200 MT/s 5,000 MT/s

details

Xeon E5 2640 v2  vs
Core i7 3770 
Architecture x86-64 x86-64
Threads 16 8
L2 cache 2 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 20 MB 8 MB
L3 cache per core 2.5 MB/core 2 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 2 1
Clock multiplier 20 34
Operating temperature Unknown - 75°C Unknown - 67.4°C

overclocking

Overclocked clock speed 2.55 GHz 4.03 GHz
Overclocked clock speed (Water) 2 GHz 4.32 GHz
Overclocked clock speed (Air) 2.55 GHz 4.03 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics 4000
Latest DirectX N/A 11.x
Number of displays supported N/A 3
GPU clock speed N/A 650 MHz
Turbo clock speed N/A 1,150 MHz
3DMark06 N/A 5,339.9

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3
Channels Quad Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 25,600 MB/s 25,600 MB/s
Maximum memory size 786,432 MB 32,768 MB
Intel Xeon E5 2640 v2
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Intel Core i7 3770
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