AMD Athlon II X2 B28 

Released December, 2010
  • 3.4 GHz
  • Dual core
4.9 Out of 10

CPUBoss Review Our evaluation of the AMD Athlon II X2 B28 among desktop CPUs (45 to 75W)

Performance

Benchmark performance using all cores

Athlon II X2 B28
5.1
A4 5300B
5.1
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

Athlon II X2 B28
5.7
A4 5300B
5.8
PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Athlon II X2 B28
0.0
A4 5300B
n.d.
Fire Strike

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

Athlon II X2 B28
0.0
A4 5300B
n.d.
CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Athlon II X2 B28
4.9
A4 5300B
6.5
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Athlon II X2 B28
n.d.
A4 5300B
n.d.
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

4.9

CPUBoss Score

Combination of all six facets

Athlon II X2 B28
4.9
A4 5300B
7.0

Benchmarks Real world tests of the AMD Athlon II X2 B28

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Athlon II X2 B28
2,566
A4 5300B
2,667

GeekBench 3 (Single core) Data courtesy Primate Labs

Athlon II X2 B28
1,426
A4 5300B
1,623

GeekBench 3 (AES single core) Data courtesy Primate Labs

Athlon II X2 B28
133,900 MB/s
A4 5300B
1,840 MB/s
Core2 Duo E8400
128,000 MB/s

PassMark Data courtesy Passmark

Athlon II X2 B28
2,089
A4 5300B
1,934

PassMark (Single Core)

Athlon II X2 B28
1,211
A4 5300B
1,288

Specifications Full list of technical specs

summary

Clock speed 3.4 GHz
Cores Dual core
Socket type AM3
Is unlocked No

features

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

power consumption

TDP 65W
Annual home energy cost 15.66 $/year
Annual commercial energy cost 56.94 $/year
Performance per watt 2.19 pt/W
Typical power consumption 52.81W

bus

Clock speed 2,000 MHz

details

Architecture x86-64
Threads 2 threads
L2 cache 2 MB
L2 cache per core 1 MB/core
L3 cache 1 MB
L3 cache per core 0.5 MB/core
Manufacture process 45 nm
Max CPUs 1
Voltage range 0.85 - 1.43V
Operating temperature Unknown - 74°C

overclocking

Overclocked clock speed 4.57 GHz
Overclocked clock speed (Water) 3.4 GHz
PassMark (Overclocked) 2,406.4
Overclocked clock speed (Air) 4.57 GHz

integrated graphics

GPU None
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