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Differences What are the advantages of each

Front view of Intel Xeon E5-2643

Reasons to consider the
Intel Xeon E5-2643

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Much higher clock speed 3.3 GHz vs 2.3 GHz Around 45% higher clock speed
Much higher turbo clock speed 3.5 GHz vs 2.8 GHz More than 25% higher turbo clock speed
Much better overclocked clock speed (Air) 3.3 GHz vs 2.8 GHz Around 20% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 3.3 GHz vs 2.8 GHz Around 20% better overclocked clock speed (Water)
Front view of AMD Opteron 6338P

Reasons to consider the
AMD Opteron 6338P

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Much more l2 cache 12 MB vs 1 MB 12x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l3 cache 16 MB vs 10 MB 60% more l3 cache; more data can be stored in the l3 cache for quick access later
More threads 12 vs 8 4 more threads
Significantly lower typical power consumption 80.44W vs 105.63W Around 25% lower typical power consumption
Supports more CPUs in SMP configuration 4 vs 2 Twice as many CPUs in SMP configuration
Significantly lower annual commercial energy cost 86.72 $/year vs 113.88 $/year Around 25% lower annual commercial energy cost
Significantly lower annual home energy cost 23.85 $/year vs 31.32 $/year Around 25% lower annual home energy cost
Newer Jan, 2014 vs Mar, 2012 Release date over 1 years later

Features Key features of the Xeon E5-2643  vs Opteron 6338P 

clock speed

Xeon E5-2643
3.3 GHz
Opteron 6338P
2.3 GHz

turbo clock speed

Xeon E5-2643
3.5 GHz
Opteron 6338P
2.8 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Xeon E5-2643
3.3 GHz
Opteron 6338P
2.8 GHz

overclocked clock speed (water)

Xeon E5-2643
3.3 GHz
Opteron 6338P
2.8 GHz

Specifications Full list of technical specs

summary

Xeon E5-2643  vs
Opteron 6338P 
Clock speed 3.3 GHz 2.3 GHz
Turbo clock speed 3.5 GHz 2.8 GHz
Cores Quad core Dodeca core
Socket type
LGA 2011
G34

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
AVX 1.1
SSE2
F16C
MMX
XOP
AVX
SSE3
SSE
ABM
BMI1
CLMUL
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
CVT16
AMD-V
Supplemental SSE3
AES
TBM
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 130W 99W
Annual home energy cost 31.32 $/year 23.85 $/year
Annual commercial energy cost 113.88 $/year 86.72 $/year
Typical power consumption 105.63W 80.44W

bus

Transfer rate 8,000 MT/s 6,400 MT/s
Clock speed 4,000 MHz 3,200 MHz

details

Xeon E5-2643  vs
Opteron 6338P 
Architecture x86-64 x86-64
Threads 8 12
L2 cache 1 MB 12 MB
L3 cache 10 MB 16 MB
Manufacture process 32 nm 32 nm
Max CPUs 2 4
Clock multiplier 35 17
Operating temperature Unknown - 73°C Unknown - 69°C

overclocking

Overclocked clock speed 3.3 GHz 2.8 GHz
Overclocked clock speed (Water) 3.3 GHz 2.8 GHz
Overclocked clock speed (Air) 3.3 GHz 2.8 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

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 Yes
Maximum bandwidth 51,200 MB/s 51,200 MB/s
Intel Xeon E5-2643
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AMD Opteron 6338P
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Comments

Showing 1 comment.
dude every amd are cheap and best
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