CPUBoss Review Our evaluation of E5-1620 vs 3820 among all CPUs

Performance

Benchmark performance using all cores

PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Sky Diver and Cloud Gate

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

No winner declared

Too close to call

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VS

Differences What are the advantages of each

Front view of Intel Xeon E5-1620

Reasons to consider the
Intel Xeon E5-1620

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Much lower typical power consumption 105.63W vs 139.6W Around 25% lower typical power consumption
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Supports more RAM 384,000 MB vs 65,771.52 MB Supports more than 5.8x more RAM
Much lower annual home energy cost 31.32 $/year vs 49.49 $/year More than 35% lower annual home energy cost
Better PassMark (Single core) score 2,117 vs 1,943 Around 10% better PassMark (Single core) score
Better performance per watt 7.47 pt/W vs 6.18 pt/W More than 20% better performance per watt
Significantly lower annual commercial energy cost 113.88 $/year vs 138.93 $/year Around 20% lower annual commercial energy cost
Front view of Intel Core i7 3820

Reasons to consider the
Intel Core i7 3820

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Much better performance per dollar 4.08 pt/$ vs 3.3 pt/$ Around 25% better performance per dollar
Better CompuBench 1.5 T-Rex score 0.76 fps vs 0.62 fps More than 20% better CompuBench 1.5 T-Rex score
Better overclocked clock speed (Air) 4.68 GHz vs 3.93 GHz Around 20% better overclocked clock speed (Air)

Benchmarks Real world tests of Xeon E5-1620 vs Core i7 3820

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

Xeon E5-1620
0.62 fps
Core i7 3820
0.76 fps

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E5-1620
12,397
Core i7 3820
12,538

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5-1620
2,460,000 MB/s
Core i7 3820
2,500,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon E5-1620
13,003
Core i7 3820
12,550

GeekBench (64-bit) Data courtesy Primate Labs

Xeon E5-1620
13,786
Core i7 3820
13,644

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E5-1620  vs
Core i7 3820 
Clock speed 3.6 GHz 3.6 GHz
Turbo clock speed 3.8 GHz 3.8 GHz
Cores Quad core Quad core
Socket type
LGA 2011

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 130W 130W
Annual home energy cost 31.32 $/year 49.49 $/year
Annual commercial energy cost 113.88 $/year 138.93 $/year
Performance per watt 7.47 pt/W 6.18 pt/W
Typical power consumption 105.63W 139.6W

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 51,200 MB/s 51,200 MB/s
Maximum memory size 384,000 MB 65,771.52 MB

details

Xeon E5-1620  vs
Core i7 3820 
Architecture x86-64 x86-64
Threads 8 8
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 10 MB 10 MB
L3 cache per core 2.5 MB/core 2.5 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 1 1
Clock multiplier 38 36
Voltage range 0.6 - 1.35V 0.6 - 1.35V
Operating temperature Unknown - 64°C Unknown - 66.8°C

overclocking

Overclocked clock speed 3.93 GHz 4.68 GHz
Overclocked clock speed (Water) 4.7 GHz 4.71 GHz
Overclocked clock speed (Air) 3.93 GHz 4.68 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 0 1
Transfer rate 0 MT/s 5,000 MT/s
Intel Xeon E5-1620
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Intel Core i7 3820
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