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AMD A8-3820 Vs Core i5-2500K

– The AMD’s A8-3820 is clocked slower than the Core i5-2500K and its CPU performance is slower than the Intel’s Core i5-2500K.

– The A8-3820’s integrated graphics (Radeon HD 6550D)  is however, significantly better than the Intel’s HD Graphics 3000.

– The A8-3820 is cheaper and has started appearing in newer desktops  ( as we write this on Feb 9, 2011). The Core i5-2500K is the Intel’s best seller processor for $229.

– For details of the architectures of these two processors, check out – Llano APU Architecture and Sandy Bridge Architecture.

 Table : AMD A8-3820 Vs Core i5-2500K Feature Differences

Feature AMD A8-3820 Core i5-2500K
Core Frequency 2.5 GHz 3.3 GHz
No. Of Cores 4/4 No HyperThreading 4 ( 4 Hyperthreads)
Cache Organization 4 MB L2 cache 6 MB Intel Smart Cache
Turbo Frequency 2.80 GHz 3.7 GHz
TDP Rating 65 Watts 95 Watts
64 Bit Support Y Y
Lithography 32nm 32 nm
Integrated Memory Controller DDR3-1866 DDR3-1333
Integrated Graphics Radeon HD 6550D GPU at 600 MHz , 400 shader units Yes, Base 850 MHz, Turbo 1.1 GHz


Table : AMD A8-3820 Vs Core i5-2500K Benchmarking Comparison

Benchmarks AMD A8-3820 Core i5-2500K
PassMark CPU Mark Score
3375 6818
Super Pi 2M (Lower in better)
Not available Not available
3D Mark 06 CPU   2500 6101
Windows 7 Experience Score
7.3 7.6


Some more details of AMD A8-3820

The A8-3820 bumps up the speed of the A8-3800 before the Trinity chips arrive. With Turbo boost feature available, this should give slight bump to the performance but it is still not comparable to the best selling core i5 ( for example core i5-2500K) Sandy Bridge processors.

Some more details of Core i5-2500K

The core i5-2500K is the overclockable version of the core i5-2500. It belongs to the second generation Core i5 processor, more popularly known as the Sandy bridge Processor. There have been several improvement over the previous generation core i5 processor, most notable among them is the improvement in the integrated graphics ( x2 performance improvement). The new Turbo 2.0 further boosts the performance. In the lithography improvement the we now have a unified 32 nm die having everything on a single die. The higher passmark score of core i5-2500K with respect to the core i5-2500 only indicates that more samples sent the overclocked 2500K scores

Further Reading

We strongly suggest that you check out

Llano APU Architecture
Sandy Bridge Architecture.

Related posts:

  1. AMD A8-3820 Vs Intel Core i3-2100
  2. AMD FX-4100 Vs Intel Core i5-2500K
  3. AMD A8-3820 APU
  4. Intel Core i5-2500K Vs Core i5-2400
  5. Intel Core i7-3820 Vs Core i7-2600

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