Re: why is sandy bridge better than amd?
why is sandy bridge better than amd?
Because Sandy Bridge has a beter architecture compared to AMD's current K10.5 architecture which itself competes against first generation Core i3/5/7.
is it only due to clock speed?
Not only due to clock speed.
In the late nineties and early 2000s, Intel was only aiming at having higher clock speed aka Ghz. AMD proved them wrong with their Athlon XP and Athlon 64 which used to pwn Intel's 3 Ghz Pentium 4 with only 1.9Ghz of clock speed.
Athlon XP 3000+ was a 2.1 Ghz processor and it was better than Pentium 4 3.0 Ghz.
then can that performance be achieved by overclocking?
In the same architecture, the higher clock speed will obviously be faster. But then it is the efficiency of the architecture which tells you how good a processor will overclock and work faster. Efficiency of the architecture will also determine the power consumption and temperature of the processor at stock speed and when overclocked.
why is intel always ahead of amd in the benchmarks?
It was never the case always. AMD ruled the market from 1999 to 2006. Frankly speaking, anyone who bought Pentium 4 or Pentium D blindly is an idiot.
2006 saw the launch of Intel's Core 2 architecture. It changed the game. AMD acquired ATi (graphic company) and faced financial troubles. Intel took the lead and is still leading. AMD is still competing with their 8 year old K8 (Athlon 64) architecture with minor improvements here and there. Let's see how Bulldozer delivers as it is AMD's first re-design from scratch and it is the one which will compete with Sandy Bridge.
---------- Post added at 06:34 PM ---------- Previous post was at 06:33 PM ----------
Core i3 cant be considered as dual core as its architecture is completely different.
It is to be considered dual core. The only thing is, it has hyper-threading and a single core can manage two threads simultaneously.
---------- Post added at 06:50 PM ---------- Previous post was at 06:34 PM ----------
hello! what does having more cores actually mean?
Having more cores means you can process more threads at once. 1 core processes 1 thread. Intel's processors with HyperThreading can process 2 threads in 1 core and it gives you a 10-20% boost.
does it affect the clock speed?
Clock speed is something completely different. Totally unrelated to cores.
why do intel dual cores remain ahead of amd quad cores in benchmark results?
Depends at which price point you are looking at. At the moment, AMD's territory is the below $120 market. Above it, Intel rules.