Dual processor Vs Dual Core ?

[latief75]

what should have better performance and why ????

dual processors or a dual core processor ???

 

[(cf)Eclipse]

given the same cpu mhz and cache size, dual core will be slightly faster, mostly because the link between the cpu's is much faster, and dual cpu's means opteron, which means registered ram.. not fun

 

[Hito Bahadur]

I'll have a 3800+ and a 2x246 set up in my house starting next week that I can do some non-scientific benchmarks on (not going to change the amount of memory and O/S just for testing. The major difference would be what eclipse mentioned, cache (1MB Opteron vs 512K X2) and Registered memory.

If anyone wants me to run any specific benchmarks I will. I might be willing to use the same PCI card in both (6600GT PCI) and might be convinced to throw a different HDD to test using the same O/S if there is enough interest.

 

[MrJohnson]

I think the dual processors would be faster because each has it's own dedicated memmory bus. But I could be wrong.

 

[(cf)Eclipse]

I think the dual processors would be faster because each has it's own dedicated memmory bus. But I could be wrong.

in memory intensive programs, this should be true. the only question is how much does the faster communication between cores for dual core help out in those situations? also.. K8 is pretty insensitive to bandwidth

 

[Dew]

In real world, with the K8 platform, you should see no tangable difference.

 

[Super Mario]

There are two Athlon 64 X2 dual core CPUs that have 1MB L2 cache. There are teo that have 512KB L2 cache.

 

[DejaWiz]

There are two Athlon 64 X2 dual core CPUs that have 1MB L2 cache. There are teo that have 512KB L2 cache.

There are now 3 that have the 2x512K L2 cache.

 

[(cf)Eclipse]

There are two Athlon 64 X2 dual core CPUs that have 1MB L2 cache. There are teo that have 512KB L2 cache.

that is kinda misleading. 1mb total or 1mb per core?

there are 3 with 1mb, 512kb per core, and 2 with 2mb, 1mb per core