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Differences What are the advantages of each

Front view of Intel Xeon X5670

Reasons to consider the
Intel Xeon X5670

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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
Much better geekbench 3 Multi-Core score 24,364 vs 10,712 More than 2.2x better geekbench 3 Multi-Core score
Higher clock speed 2.93 GHz vs 2.5 GHz More than 15% higher clock speed
More l3 cache 12 MB vs 8 MB 50% more l3 cache; more data can be stored in the l3 cache for quick access later
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
More threads 12 vs 8 4 more threads
Better overclocked clock speed (Air) 4.29 GHz vs 3.5 GHz More than 20% better overclocked clock speed (Air)
Supports more RAM 294,912 MB vs 32,768 MB Supports 9x more RAM
Higher Maximum operating temperature 81.3 °C vs 69.8 °C More than 15% higher Maximum operating temperature
Much better overclocked clock speed (Water) 4.5 GHz vs 2.5 GHz Around 80% 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
Front view of Intel Core i7 3770T

Reasons to consider the
Intel Core i7 3770T

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much better performance per dollar 2.03 pt/$ vs 0.56 pt/$ More than 3.5x better performance per dollar
Significantly newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher turbo clock speed 3.7 GHz vs 3.33 GHz More than 10% higher turbo clock speed
Much lower typical power consumption 36.56W vs 77.19W 2.1x lower typical power consumption
Much better performance per watt 14.88 pt/W vs 8.54 pt/W Around 75% better performance per watt
Better PassMark (Single core) score 1,937 vs 1,347 Around 45% better PassMark (Single core) score
Newer Apr, 2012 vs Mar, 2010 Release date over 2 years later
Much lower annual home energy cost 10.84 $/year vs 22.89 $/year 2.1x lower annual home energy cost
Much lower annual commercial energy cost 39.42 $/year vs 83.22 $/year 2.1x lower annual commercial energy cost

Benchmarks Real world tests of Xeon X5670 vs Core i7 3770T

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon X5670
24,364
Core i7 3770T
10,712

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon X5670
1,590,000 MB/s
Core i7 3770T
2,150,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon X5670
13,847
Core i7 3770T
10,736

GeekBench (64-bit) Data courtesy Primate Labs

Xeon X5670
14,780
Core i7 3770T
11,451

GeekBench

Xeon X5670
14,780
Core i7 3770T
13,734

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon X5670  vs
Core i7 3770T 
Clock speed 2.93 GHz 2.5 GHz
Turbo clock speed 3.33 GHz 3.7 GHz
Cores Hexa core Quad core
Socket type
LGA 1366
LGA 1155

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
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 45W
Annual home energy cost 22.89 $/year 10.84 $/year
Annual commercial energy cost 83.22 $/year 39.42 $/year
Performance per watt 8.54 pt/W 14.88 pt/W
Typical power consumption 77.19W 36.56W

bus

Architecture QPI DMI
Number of links 2 1
Transfer rate 6,400 MT/s 5,000 MT/s
Clock speed 3,200 MHz 2,500 MHz

details

Xeon X5670  vs
Core i7 3770T 
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 12 MB 8 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 2 1
Clock multiplier 22 25
Voltage range 0.75 - 1.35V 0.92 - 1.1V
Operating temperature Unknown - 81.3°C Unknown - 69.8°C

overclocking

Overclocked clock speed 4.29 GHz 3.5 GHz
Overclocked clock speed (Water) 4.5 GHz 2.5 GHz
Overclocked clock speed (Air) 4.29 GHz 3.5 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics 4000
Number of displays supported N/A 3
GPU clock speed N/A 650 MHz
Turbo clock speed N/A 1,150 MHz

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 294,912 MB 32,768 MB
Intel Xeon X5670
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Intel Core i7 3770T
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