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Intel Xeon E5-2620

Front view of Intel Xeon E5-2620
Front view of Intel Core i7 3930K

Intel Core i7 3930K

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Differences What are the advantages of each

Front view of Intel Xeon E5-2620

Reasons to consider the
Intel Xeon E5-2620

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Much lower typical power consumption 77.19W vs 172.6W 2.2x lower typical power consumption
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
More l3 cache 15 MB vs 12 MB 25% more l3 cache; more data can be stored in the l3 cache for quick access later
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Much lower annual home energy cost 22.89 $/year vs 56.96 $/year 2.5x lower annual home energy cost
Supports more RAM 393,216 MB vs 65,771.52 MB Supports around 6x more RAM
Much lower annual commercial energy cost 83.22 $/year vs 177.83 $/year 2.1x lower annual commercial energy cost
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Higher Maximum operating temperature 77.4 °C vs 66.8 °C More than 15% higher Maximum operating temperature
Better performance per watt 6.57 pt/W vs 5.5 pt/W Around 20% better performance per watt
Newer Mar, 2012 vs Nov, 2011 Release date 3 months later
Front view of Intel Core i7 3930K

Reasons to consider the
Intel Core i7 3930K

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Significantly higher clock speed 3.2 GHz vs 2 GHz More than 60% higher clock speed
Significantly higher turbo clock speed 3.8 GHz vs 2.5 GHz More than 50% higher turbo clock speed
Much better performance per dollar 2.45 pt/$ vs 1.52 pt/$ More than 60% better performance per dollar
Much better overclocked clock speed (Air) 4.67 GHz vs 2.28 GHz More than 2x better overclocked clock speed (Air)
Significantly better PassMark (Single core) score 1,949 vs 1,231 Around 60% better PassMark (Single core) score
Better PassMark score 12,084 vs 7,957 More than 50% better PassMark score
Much better overclocked clock speed (Water) 4.67 GHz vs 2 GHz More than 2.2x better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon E5-2620 vs Core i7 3930K

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E5-2620
10,510
Core i7 3930K
18,254

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon E5-2620
1,736
Core i7 3930K
3,146

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5-2620
1,315,000 MB/s
Core i7 3930K
2,430,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon E5-2620
12,059
Core i7 3930K
18,893

GeekBench (64-bit) Data courtesy Primate Labs

Xeon E5-2620
13,391
Core i7 3930K
20,842

GeekBench

Xeon E5-2620
13,391
Core i7 3930K
22,340

PassMark Data courtesy Passmark

Xeon E5-2620
7,957
Core i7 3930K
12,084

PassMark (Single Core)

Xeon E5-2620
1,231
Core i7 3930K
1,949

Specifications Full list of technical specs

summary

 Xeon E5-2620  vs
Core i7 3930K 
Clock speed 2 GHz 3.2 GHz
Turbo clock speed 2.5 GHz 3.8 GHz
Cores Hexa core Hexa core
Socket type
LGA 2011
Is unlocked Yes Yes

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
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption
TDP 95W 130W
Annual home energy cost 22.89 $/year 56.96 $/year
Annual commercial energy cost 83.22 $/year 177.83 $/year
Performance per watt 6.57 pt/W 5.5 pt/W
Typical power consumption 77.19W 172.6W

memory controller
Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3-1066
DDR3
DDR3-800
Channels Quad Channel Quad Channel
Supports ECC Yes No
Maximum bandwidth 42,666.64 MB/s 51,200 MB/s
Maximum memory size 393,216 MB 65,771.52 MB

details

 Xeon E5-2620  vs
Core i7 3930K 
Architecture x86-64 x86-64
Threads 12 12
L2 cache 2 MB 2 MB
L2 cache per core 0.33 MB/core 0.33 MB/core
L3 cache 15 MB 12 MB
L3 cache per core 2.5 MB/core 2 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 2 1
Clock multiplier 25 32
Voltage range 0.6 - 1.35V 0.6 - 1.35V
Operating temperature Unknown - 77.4°C Unknown - 66.8°C

overclocking
Overclock popularity 4 598
Overclocked clock speed 2.28 GHz 4.67 GHz
Overclocked clock speed (Water) 2 GHz 4.67 GHz
Overclocked clock speed (Air) 2.28 GHz 4.67 GHz

integrated graphics
GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A

bus
Architecture QPI DMI 2.0
Number of links 2 1
Transfer rate 7,200 MT/s 5,000 MT/s
Intel Xeon E5-2620
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Intel Core i7 3930K
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