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Intel Core i7 950

CPUBoss Winner
Front view of Intel Core i7 950

Differences What are the advantages of each

Front view of Intel Core i7 950

Reasons to consider the
Intel Core i7 950

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Much newer manufacturing process 45 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly higher clock speed 3.06 GHz vs 2.2 GHz Around 40% higher clock speed
Much better overclocked clock speed (Air) 4.25 GHz vs 2.2 GHz Around 95% better overclocked clock speed (Air)
Significantly better PassMark (Single core) score 1,324 vs 685 Around 95% better PassMark (Single core) score
Better PassMark score 5,595 vs 1,291 More than 4.2x better PassMark score
More threads 8 vs 2 6 more threads
More cores 4 vs 2 Twice as many cores; run more applications at once
Newer Jun, 2009 vs May, 2005 Release date over 4 years later
Much better overclocked clock speed (Water) 4.2 GHz vs 2.2 GHz More than 90% better overclocked clock speed (Water)
Slightly better performance per watt 1.55 pt/W vs 0.87 pt/W Around 80% better performance per watt
Front view of AMD Opteron 275

Reasons to consider the
AMD Opteron 275

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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 lower typical power consumption 69.06W vs 105.63W 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
Much lower annual home energy cost 20.48 $/year vs 31.32 $/year Around 35% lower annual home energy cost
Much lower annual commercial energy cost 74.46 $/year vs 113.88 $/year Around 35% lower annual commercial energy cost

Benchmarks Real world tests of Core i7 950 vs Opteron 275

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i7 950
8,385
Opteron 275
2,534

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i7 950
137,000 MB/s
Opteron 275
60,200 MB/s

PassMark Data courtesy Passmark

Core i7 950
5,595
Opteron 275
1,291

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 950  vs
Opteron 275 
Clock speed 3.06 GHz 2.2 GHz
Cores Quad core Dual core
Socket type
LGA 1366
940

features

Has a NX bit Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

details

Core i7 950  vs
Opteron 275 
Threads 8 2
L2 cache 1 MB 2 MB
L2 cache per core 0.25 MB/core 1 MB/core
Manufacture process 45 nm 90 nm
Max CPUs 1 2
Clock multiplier 23 11
Voltage range 0.8 - 1.38V 1.2 - UnknownV
Operating temperature Unknown - 67.9°C 0 - 67°C

overclocking

Overclocked clock speed 4.25 GHz 2.2 GHz
Overclocked clock speed (Water) 4.2 GHz 2.2 GHz
PassMark (Overclocked) 3,815.5 1,303.6
Overclocked clock speed (Air) 4.25 GHz 2.2 GHz

power consumption

TDP 130W 85W
Annual home energy cost 31.32 $/year 20.48 $/year
Annual commercial energy cost 113.88 $/year 74.46 $/year
Performance per watt 1.55 pt/W 0.87 pt/W
Typical power consumption 105.63W 69.06W
Intel Core i7 950
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AMD Opteron 275
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