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Differences What are the advantages of each

Front view of Intel Core i7 3770K

Reasons to consider the
Intel Core i7 3770K

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
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
Significantly better overclocked clock speed (Air) 4.69 GHz vs 3.5 GHz Around 35% better overclocked clock speed (Air)
Significantly more l3 cache per core 2 MB/core vs 1.33 MB/core More than 50% more l3 cache per core
More threads 8 vs 6 2 more threads
Significantly better overclocked clock speed (Water) 4.8 GHz vs 3.5 GHz More than 35% better overclocked clock speed (Water)
Front view of AMD Opteron 4340

Reasons to consider the
AMD Opteron 4340

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Much more l2 cache 6 MB vs 1 MB 6x more l2 cache; more data can be stored in the l2 cache for quick access later
Much lower typical power consumption 77.19W vs 114.97W Around 35% lower typical power consumption
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
More cores 6 vs 4 2 more cores; run more applications at once
Much lower annual home energy cost 22.89 $/year vs 42.19 $/year More than 45% lower annual home energy cost
Significantly lower annual commercial energy cost 83.22 $/year vs 112.39 $/year More than 25% lower annual commercial energy cost
Newer Dec, 2012 vs Apr, 2012 Release date 7 months later

Features Key features of the Core i7 3770K  vs Opteron 4340 

clock speed

Core i7 3770K
3.5 GHz
Opteron 4340
3.5 GHz

turbo clock speed

Core i7 3770K
3.9 GHz
Opteron 4340
3.8 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Core i7 3770K
4.69 GHz
Opteron 4340
3.5 GHz

overclocked clock speed (water)

Core i7 3770K
4.8 GHz
Opteron 4340
3.5 GHz

Specifications Full list of technical specs

summary

Core i7 3770K  vs
Opteron 4340 
Clock speed 3.5 GHz 3.5 GHz
Turbo clock speed 3.9 GHz 3.8 GHz
Cores Quad core Hexa core
Socket type
LGA 1155
C32
Is unlocked Yes No

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
AVX 1.1
SSE2
F16C
MMX
SSE4
XOP
AVX
SSE3
SSE
CLMUL
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
CVT16
AMD-V
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 77W 95W
Annual home energy cost 42.19 $/year 22.89 $/year
Annual commercial energy cost 112.39 $/year 83.22 $/year
Typical power consumption 114.97W 77.19W

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3
Channels Dual Channel Dual Channel
Supports ECC No Yes
Maximum bandwidth 25,600 MB/s 12,800 MB/s

details

Core i7 3770K  vs
Opteron 4340 
Threads 8 6
L2 cache 1 MB 6 MB
L2 cache per core 0.25 MB/core 1 MB/core
L3 cache 8 MB 8 MB
L3 cache per core 2 MB/core 1.33 MB/core
Manufacture process 22 nm 32 nm
Max CPUs 1 2
Clock multiplier 35 17
Operating temperature Unknown - 67.4°C Unknown - 67.7°C

overclocking

Overclock popularity 332 0
Overclocked clock speed 4.69 GHz 3.5 GHz
Overclocked clock speed (Water) 4.8 GHz 3.5 GHz
Overclocked clock speed (Air) 4.69 GHz 3.5 GHz

integrated graphics

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

bus

Architecture DMI HyperTransport 3.0
Transfer rate 5,000 MT/s 6,400 MT/s
Intel Core i7 3770K
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AMD Opteron 4340
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