CPUBoss Review Our evaluation of E5-2420 vs 3770K 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

8.1

CPUBoss Score

Combination of all six facets

Winner
Intel Core i7 3770K 

CPUBoss recommends the Intel Core i7 3770K  based on its performance, single-core performance and power consumption.

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VS

Differences What are the advantages of each

Front view of Intel Xeon E5-2420

Reasons to consider the
Intel Xeon E5-2420

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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
More l3 cache 15 MB vs 8 MB Around 90% more l3 cache; more data can be stored in the l3 cache for quick access later
Much lower typical power consumption 77.19W vs 114.97W Around 35% lower typical power consumption
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
More cores 6 vs 4 2 more cores; run more applications at once
Supports more RAM 393,216 MB vs 32,768 MB Supports 12x more RAM
More threads 12 vs 8 4 more threads
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Much lower annual home energy cost 22.89 $/year vs 42.19 $/year More than 45% lower annual home energy cost
Better performance per watt 5.47 pt/W vs 4.55 pt/W More than 20% better performance per watt
More l2 cache per core 0.33 MB/core vs 0.25 MB/core Around 35% more l2 cache per core
Significantly lower annual commercial energy cost 83.22 $/year vs 112.39 $/year More than 25% lower annual commercial energy cost
Front view of Intel Core i7 3770K

Reasons to consider the
Intel Core i7 3770K

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Much higher clock speed 3.5 GHz vs 1.9 GHz Around 85% higher clock speed
Much higher turbo clock speed 3.9 GHz vs 2.4 GHz Around 65% higher turbo clock speed
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Significantly newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better performance per dollar 2.21 pt/$ vs 1.26 pt/$ More than 75% better performance per dollar
Much better overclocked clock speed (Air) 4.69 GHz vs 2.36 GHz Around 2x better overclocked clock speed (Air)
Significantly better PassMark (Single core) score 2,084 vs 1,355 Around 55% better PassMark (Single core) score
Much better overclocked clock speed (Water) 4.8 GHz vs 1.9 GHz More than 2.5x better overclocked clock speed (Water)
Slightly better PassMark score 9,544 vs 8,570 More than 10% better PassMark score

Benchmarks Real world tests of Xeon E5-2420 vs Core i7 3770K

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E5-2420
10,344
Core i7 3770K
13,098

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5-2420
985,150 MB/s
Core i7 3770K
2,620,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E5-2420  vs
Core i7 3770K 
Clock speed 1.9 GHz 3.5 GHz
Turbo clock speed 2.4 GHz 3.9 GHz
Cores Hexa core Quad core
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 77W
Annual home energy cost 22.89 $/year 42.19 $/year
Annual commercial energy cost 83.22 $/year 112.39 $/year
Performance per watt 5.47 pt/W 4.55 pt/W
Typical power consumption 77.19W 114.97W

bus

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

details

Xeon E5-2420  vs
Core i7 3770K 
Architecture x86-64 x86-64
Threads 12 8
L2 cache 2 MB 1 MB
L2 cache per core 0.33 MB/core 0.25 MB/core
L3 cache 15 MB 8 MB
L3 cache per core 2.5 MB/core 2 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 2 1
Voltage range 0.6 - 1.35V 1.33 - 1.36V

overclocking

Overclock popularity 0 332
Overclocked clock speed 2.36 GHz 4.69 GHz
Overclocked clock speed (Water) 1.9 GHz 4.8 GHz
Overclocked clock speed (Air) 2.36 GHz 4.69 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
DDR3-1066
DDR3
DDR3-800
Channels Triple Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 31,999.98 MB/s 25,600 MB/s
Maximum memory size 393,216 MB 32,768 MB
Intel Xeon E5-2420
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Intel Core i7 3770K
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