Quick question on Multi-Core CPU's

[BigCoolJesus]

Just plain and simple really......... Whats the main differences between an X2 and a Opteron Dual core CPU?

If i plan on overclocking, which one is better to get, a 2.0Ghz X2 or a 2.0Ghz Opteron?

 

[Bobthelost]

None.

2.0Ghz Opteron.

Search function.

 

[Duvie]

1) opterons come with 2mb L2 cache (1mb per core) while the X2 models of 3800+,4200+, and 4600+ have 1mb of l2 cache or 512kb per core...

2) X2's are socket 939, while dual core opterons except the 1xx series are sckt 940....the sckt 940 chips will not work in socket 939 mobos...The 1xx series of dual core opterons are sckt 939...
the extra pin is for the extra HTT link needed for multi cpu configurations....

 

[BigCoolJesus]

So which one would you buy?

AMD Opteron 170 Denmark 1000MHz HT 2 x 1MB L2 Cache Socket 939 Dual Core Processor


or


AMD Athlon 64 X2 4200+ Manchester 2000MHz HT 2 x 512KB L2 Cache Socket 939 Dual Core Processor

 

[Duvie]

I would buy the 170......the added cache plus they seem to OC very well...

 

[robertk2012]

http://forums.anandtech.com/messageview...&STARTPAGE=1&FTVAR_FORUMVIEWTMP=Linear

 

[LOUISSSSS]

i'd buy the X2 4200, higher clock speed, cheaper by $50, free tshirt =]

 

[JSFLY]

If your thinking of buying the 170, might as well get the 165. Same chip basically, except with multiplier 10x instead of 9x.

 

[TrevorRC]

Just a thought, but ALL of the new X2 steppings are on-par/over-par the Opterons, with respect to overclocking.

Just figured I'd point that out.

 

[robertk2012]

Originally posted by: TrevorRC
Just a thought, but ALL of the new X2 steppings are on-par/over-par the Opterons, with respect to overclocking.

Just figured I'd point that out.

I dont know if I would go as far as to say that. The new x2s have been giving good results though.

 

[krotchy]

Ok, here is the speed chart for non OCed dual core chips:

(1.8Ghz,2M Cache) Opteron 165
(2.0Ghz,1M Cache) X2 3800+
(2.0Ghz,2M Cache) Opteron 170
(2.2Ghz,1M Cache) X2 4200+
(2.2Ghz,2M Cache) X2 4400+ == Opteron 175
(2.4Ghz,1M Cache) X2 4600+
(2.4Ghz,2M Cache) X2 4800+ == Opteron 180
(2.6Ghz,2M Cache) Opteron 185 == FX-60

FX 60 has no multipler, while the 185 does, but at stock they should perform identically. Generally opterons are considered the better OCing chips compared to the X2's, but honestly, its largely based on luck if you purchase from someone like newegg. Also the FX-60 is considered the best OCing chip.

I personally love the 170, as its a 10x multiplier chip which makes OCing cake, and its the only 10x chip that has the 2M cache.