CPUBoss Review Our evaluation of E5-1620 vs 3770


Benchmark performance using all cores

Passmark and GeekBench

Single-core Performance

Individual core benchmark performance

Passmark (Single Core)

Power Consumption

How much power does the processor require?



Performance Per Dollar

CPUBoss Score

Performance, Single-core Performance, Power Consumption and Value

Intel Core i7 3770 

CPUBoss recommends the Intel Core i7 3770  based on its .

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Front view of Intel Core i7 3770

Intel Core i7 3770

CPUBoss Winner

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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Slightly higher clock speed 3.6 GHz vs 3.4 GHz More than 5% higher clock speed
Supports more RAM 384,000 MB vs 32,768 MB Supports around 11.8x more RAM
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Front view of Intel Core i7 3770

Reasons to consider the
Intel Core i7 3770

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Lower typical power consumption 62.56W vs 105.63W More than 40% lower typical power consumption
Lower annual home energy cost 18.55 $/year vs 31.32 $/year More than 40% lower annual home energy cost
Lower annual commercial energy cost 67.45 $/year vs 113.88 $/year More than 40% lower annual commercial energy cost
Better overclocked clock speed (Water) 4.19 GHz vs 3.6 GHz More than 15% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon E5-1620 vs Core i7 3770

Specifications Full list of technical specs


Xeon E5-1620  vs
Core i7 3770 
Clock speed 3.6 GHz 3.4 GHz
Turbo clock speed 3.8 GHz 3.9 GHz
Cores Quad core Quad core
Socket type
LGA 2011
LGA 1155
Is hyperthreaded Yes Yes


Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 130W 77W
Annual home energy cost 31.32 $/year 18.55 $/year
Annual commercial energy cost 113.88 $/year 67.45 $/year
Performance per watt 10.68 pt/W 14.76 pt/W
Typical power consumption 105.63W 62.56W


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


Xeon E5-1620  vs
Core i7 3770 
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 8 MB
L3 cache per core 2.5 MB/core 2 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 1 1
Clock multiplier 38 34
Operating temperature Unknown - 64°C Unknown - 67.4°C


Overclocked clock speed 4.03 GHz 3.98 GHz
Overclocked clock speed (Water) 3.6 GHz 4.19 GHz
Overclocked clock speed (Air) 4.03 GHz 3.98 GHz

integrated graphics

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
Channels Quad Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 51,200 MB/s 25,600 MB/s
Maximum memory size 384,000 MB 32,768 MB
Intel Xeon E5-1620
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Intel Core i7 3770
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