cpu cache amd vs intel

[drmosko]

hi all,
I did a comparison at cpu-world between AMD A10-7870K and Intel Core i5-6600K
I saw that amd l2 cache is higher than Intel and dont have l3 cache at all but Intel has l3 cache higher and its higher than the amd l2 cache, does any body can explain to me what's the difference?

http://www.cpu-world.com/Compare/530/AMD_A10-Series_A10-7870K_vs_Intel_Core_i5_i5-6600K.html

 

[not you]

Amd apus dont have l3 but they have a good igpu intel i5 6600 has l3 a better performing cpu part but a terrible igpu :/
I know i used an amd apu than changed to an i7 6700k and i must say skylakes igpu still sucks :/

 

[superstition]

How much cache there is is one thing. How well that cache performs is another.

L2 cache is faster than L3. L3 is usually larger. L4 cache is available with Broadwell chips (5675C and 5775C).

Cache is not going to make any AMD APU perform on the level of a recent Intel i5. The AMD integrated graphics might be better but the CPU performance is much lower.

Here is a detailed explanation of caching: http://www.extremetech.com/extreme/188776-how-l1-and-l2-cpu-caches-work-and-why-theyre-an-essential-part-of-modern-chips

If you want good CPU performance with AMD on the desktop:

You can get an 8320E ($100 at Microcenter with $40 off a board). You need at least a UD3P board. That will get you up to 4.5 GHz with proper overclocking (cooling, quality PSU, etc.). You'll need to bump the BCLK a bit to keep the multiplier at 22. Aim for 4.5 GHz if you have good CPU cooling (True Spirit Power 140 or better). If you have a cheaper EVO cooler aim for 4.4. No BCLK bump is required for 4.4.

4.5 requires about 1.39V generally for the core, 1.25 for the NB core, medium LLC, APM and C6 off. You can probably do 4.4 at 1.36V.

AMD chips need high clocks to raise their per core performance. The 8 core chips also have better FPU performance than any APU. You'll want an 850 watt PSU for 4.5 GHz and a 750 for 4.4 so you'll have room for a GPU. If going with a 390 or 390X GPU or something else that uses more power get a 1K watt PSU.