Processor differences explained

[EXTREEM]

Hi, search didn't get my anywhere with this, so why not ask?

http://www.cpu-world.com/Compare/262/AMD_Phenom_II_X4_975_vs_Intel_Core_i5_i5-6500.html

Both CPUs are 4 cores, 4 threads, and theoretically both are @ 3.6GHz.

However the comparison sheet is drastically different.

Phenom even has more cache.

 

So does anyone have a brief answer to "Why such similar processors can display such a difference in benchmark results"?

If this was discussed and solved, please direct me to a relevant topic and close this one.

[Xenift]

Basically their technologies of how task of a system is handled, threaded. How processing speed can affect performance of displaying visuals and quite alot of deep things i don't know.

[HKZeroFive]

It's not as simple as comparing core count or clockspeed. Simply put, "never compare two completely different architectures and expect them to perform the same".

[fjdhdhcyfhf]

Where to start this could get a big answer but I'll try shorten it... a computer takes a program and data as input, that is part of the definition of a computer

 

Both CPU mentioned operate on the x86 instruction set, that is the program input. How the CPU deals with those x86 instructions internally is what makes them different. Things to look up on Wikipedia, hyperthreading, instruction pipelining, amd-fx bulldozer - not related to CPU listed but interesting because it's so different, I can't think of anything else ATM except look up CPU architecture and x86 programming.

[flibberdipper]

Architecture improvements as well as process shrinks make all the difference. You wouldn't expect a 1GHz Pentium 3 to perform better than the early Williamette P4's, but they tended to perform as good or better. Why? Because the P3 had a better architecture. Likewise, it'd be like expecting the 1GHz P3 to perform as well as, say, a 1GHz i5 with only one core enabled. It will never happen because the i5 has massively better IPC.

 

 

[Taja]

Yeah, like people said... Think about IPC as workers:

If you have 2 constructions with 4 workers (cores) working 8 hours a day (frequency), but in the construction number 1 the workers are experient man, and in the constuction number 2 the workers are twelve year old children. Ofc the first building will be finished sooner.