hi guys, I was a long time nVidia user but am switching to AMD now. I want to buy a new AMD Radeon HD7870 & I have a hard time picking one between few makers, the price difference between PowerColor, ASUS, MSI, Sapphire, Gigabyte...etc is not a big deal, may be 10-25$ but what confuses me are few points which are:
1- Cooling capabilities & lifespan; some got copper pipes others got heatsinks, dual fan & one fan.
2- Core Clock: Some cards got Core Clock 1100MHz, some got 1050 & others got 1150, so is the 50-100MHz difference a big thing to consider when buying a GPU ?
3- Effective memory clock!! some got 1200MHz (4.8Gbps), others got 1250MHz (5.0Gbps) ...so ?? is it a big thing to consider too.
4- Overclocking: My CPU is overclocked & did it easily but am new to GPU overclocking but I assume it won't be much different than OC a CPU, just need the right software to do the job & I heard MSI Afterburner is a great one. So, what's the best GPU regarding OC, what is the best overclocker among these brands.
6- Customer support/warranty.
PowerColor got the highest specs among all: Effective memory clock @1250MHz (5.0Gbps) & Core Clock @ 1150
To tell you the truth I can't make up my mind whether to choose PowrColor, MSI or Sapphirehere; Sapphire got the GHz Edition & another edition I can't recall ATM, even MSI got the Twin Frozr & HAWK & I can't pick any