AMD Phenom II X2 521 

Released May, 2011
  • 3.5 GHz
  • Dual core

Benchmarks Real world tests of the AMD Phenom II X2 521

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Phenom II X2 521
2,278
Core i3 2120
5,074

GeekBench 3 (Single core) Data courtesy Primate Labs

Phenom II X2 521
1,602
Core i3 2120
2,371

GeekBench 3 (AES single core) Data courtesy Primate Labs

Phenom II X2 521
127.5 MB/s
Core i3 2120
162,800 MB/s
Athlon II X2 280
144,650 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Phenom II X2 521
3,133
Core i3 2120
5,008

GeekBench

Phenom II X2 521
4,278
Core i3 2120
8,526

PassMark Data courtesy Passmark

Phenom II X2 521
2,131
Core i3 2120
3,869

PassMark (Single Core)

Phenom II X2 521
1,120
Core i3 2120
1,679

Specifications Full list of technical specs

summary

Clock speed 3.5 GHz
Cores Dual core

features

Has a NX bit Yes
Has virtualization support Yes
Instruction set extensions
  1. SSE4a
  2. 3DNow!
  3. SSE2
  4. SSE
  5. MMX
  6. SSE3
Supports dynamic frequency scaling Yes

bus

Clock speed 2,000 MHz

details

Threads 2 threads
L2 cache 2 MB
L2 cache per core 1 MB/core
Manufacture process 45 nm
Max CPUs 1

overclocking

Overclocked clock speed 4.37 GHz
Overclocked clock speed (Water) 3.5 GHz
PassMark (Overclocked) 2,362.7
Overclocked clock speed (Air) 4.37 GHz

power consumption

TDP 65W
Annual home energy cost 15.66 $/year
Annual commercial energy cost 56.94 $/year
Performance per watt 1.51 pt/W
Typical power consumption 52.81W
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