CPUBoss Review Our evaluation of E5-2643 vs E5-1650 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 E5-2643

Reasons to consider the
Intel Xeon E5-2643

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Higher clock speed 3.3 GHz vs 3.2 GHz Around 5% higher clock speed
Supports more RAM 393,216 MB vs 262,144 MB Supports 50% more RAM
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Front view of Intel Xeon E5-1650

Reasons to consider the
Intel Xeon E5-1650

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Much 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 cores 6 vs 4 2 more cores; run more applications at once
Higher turbo clock speed 3.8 GHz vs 3.5 GHz Around 10% higher turbo clock speed
Much better overclocked clock speed (Air) 4.53 GHz vs 3.3 GHz More than 35% better overclocked clock speed (Air)
More l3 cache 12 MB vs 10 MB 20% more l3 cache; more data can be stored in the l3 cache for quick access later
More threads 12 vs 8 4 more threads
Much better overclocked clock speed (Water) 4.7 GHz vs 3.3 GHz More than 40% better overclocked clock speed (Water)
More l2 cache per core 0.33 MB/core vs 0.25 MB/core Around 35% more l2 cache per core

Benchmarks Real world tests of Xeon E5-2643 vs E5-1650

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E5-2643
12,252
Xeon E5-1650
16,658

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E5-2643
2,195,000 MB/s
Xeon E5-1650
2,210,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon E5-2643
16,367
Xeon E5-1650
18,198

GeekBench

Xeon E5-2643
16,367
Xeon E5-1650
19,270

PassMark Data courtesy Passmark

Xeon E5-2643
8,479
Xeon E5-1650
11,790

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E5-2643  vs
E5-1650 
Clock speed 3.3 GHz 3.2 GHz
Turbo clock speed 3.5 GHz 3.8 GHz
Cores Quad core Hexa core
Socket type
LGA 2011

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
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 31.32 $/year
Annual commercial energy cost 113.88 $/year 113.88 $/year
Performance per watt 7.41 pt/W 7.9 pt/W
Typical power consumption 105.63W 105.63W

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
Maximum memory size 393,216 MB 262,144 MB

details

Xeon E5-2643  vs
E5-1650 
Architecture x86-64 x86-64
Threads 8 12
L2 cache 1 MB 2 MB
L2 cache per core 0.25 MB/core 0.33 MB/core
L3 cache 10 MB 12 MB
L3 cache per core 2.5 MB/core 2 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 2 1
Clock multiplier 35 38
Voltage range 0.6 - 1.35V 0.6 - 1.35V
Operating temperature Unknown - 73°C Unknown - 64°C

overclocking

Overclocked clock speed 3.3 GHz 4.53 GHz
Overclocked clock speed (Water) 3.3 GHz 4.7 GHz
Overclocked clock speed (Air) 3.3 GHz 4.53 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 QPI
Number of links 2 0
Transfer rate 8,000 MT/s 0 MT/s
Clock speed 4,000 MHz 0 MHz
Intel Xeon E5-2643
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Intel Xeon E5-1650
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