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Differences What are the advantages of each

Front view of AMD Sempron 2800+

Reasons to consider the
AMD Sempron 2800+

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Much lower typical power consumption 50.38W vs 152.93W 3x lower typical power consumption
Much higher Maximum operating temperature 70 °C vs 62 °C Around 15% higher Maximum operating temperature
Much lower annual home energy cost 14.94 $/year vs 54.06 $/year 3.6x lower annual home energy cost
Much lower annual commercial energy cost 54.31 $/year vs 152.42 $/year 2.8x lower annual commercial energy cost
Front view of AMD Phenom II X4 965

Reasons to consider the
AMD Phenom II X4 965

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Much more l2 cache 2 MB vs 0.5 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Much higher clock speed 3.4 GHz vs 1.6 GHz More than 2x higher clock speed
Much more l3 cache 6 MB vs 0 MB Compared to all cpus, 6 MB l3 cache is just OK
Much newer manufacturing process 45 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
More cores 4 vs 1 3 more cores; run more applications at once
More threads 4 vs 1 3 more threads
Much better PassMark score 5,916 vs 398 More than 14.8x better PassMark score
Much better PassMark (Single core) score 1,361 vs 487 More than 2.8x better PassMark (Single core) score
Much better geekbench 2 (32-bit) score 5,974 vs 682 More than 8.8x better geekbench 2 (32-bit) score
Much better overclocked clock speed (Air) 4.05 GHz vs 2.36 GHz More than 70% better overclocked clock speed (Air)
More advanced architecture x86-64 vs x86 A 64-bit architecture allows more RAM to be installed and accessed by the processor
Much more l3 cache per core 1.5 MB/core vs 0 MB/core Compared to all cpus, 1.5 MB/core l3 cache per core is just OK
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Much better overclocked clock speed (Water) 4.22 GHz vs 1.8 GHz More than 2.2x better overclocked clock speed (Water)
Newer Nov, 2009 vs Jul, 2004 Release date over 5 years later

Benchmarks Real world tests of Sempron 2800+ vs Phenom II X4 965

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Sempron 2800+
43.2 MB/s
Phenom II X4 965
137,800 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Sempron 2800+  vs
Phenom II X4 965 
Clock speed 1.6 GHz 3.4 GHz
Turbo clock speed 0 GHz 0 GHz
Cores Single core Quad core
Socket type
754
AM2
462
AM3
Is unlocked No Yes

features

Has a NX bit Yes Yes
Has virtualization support No Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
3DNow!
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 62W 140W
Annual home energy cost 14.94 $/year 54.06 $/year
Annual commercial energy cost 54.31 $/year 152.42 $/year
Performance per watt 0.44 pt/W 1.08 pt/W
Typical power consumption 50.38W 152.93W

bus

Clock speed 200 MHz 2,000 MHz

details

Sempron 2800+  vs
Phenom II X4 965 
Architecture x86 x86-64
Threads 1 4
L2 cache 0.5 MB 2 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
L3 cache 0 MB 6 MB
L3 cache per core 0 MB/core 1.5 MB/core
Manufacture process 90 nm 45 nm
Max CPUs 1 1
Operating temperature Unknown - 70°C Unknown - 62°C

overclocking

Overclock popularity 1 22
Overclock review score 0 5
Overclocked clock speed 2.36 GHz 4.05 GHz
Overclocked clock speed (Water) 1.8 GHz 4.22 GHz
PassMark (Overclocked) 543.6 3,136.7
Overclocked clock speed (Air) 2.36 GHz 4.05 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
AMD Sempron 2800+
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AMD Phenom II X4 965
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