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| Thread ID: 88883 | 2008-04-13 01:16:00 | C2D 3Ghz runing single thread at 100%=1.5Ghz? | heni72847 (1166) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 658306 | 2008-04-13 01:16:00 | This is just something I can't seem to figure out... If a dual core cpu runs a single thread application, the application can only utilize a single core right? So does it mean that the application can only use half of the cpu's full potential? and when a dual core is labeled 3Ghz, does it mean when both cores are utilized at 100%, it will give the full 3Ghz performance? so sorta like 1.5Ghz per core and add up to 3Ghz... feels like a stupid question but I guess I should really get this sorted some day... |
heni72847 (1166) | ||
| 658307 | 2008-04-13 01:21:00 | No it seems you have a C2D with 2x3Ghz, right? This 2 Cores work independently from each other. A single thread runs than with one core (1x3Ghz). |
Crow1985 (6683) | ||
| 658308 | 2008-04-13 02:15:00 | No, it is 3GHz per core. | trinsic (6945) | ||
| 658309 | 2008-04-13 03:40:00 | Except that it is 3Ghz per core - like two people working at 3 million cycles per second rather than one person working a 3 million cycles per second. They don't "add up" to 6Ghz as such, you just get 2x the amount of work done in the same time frame as the workload is allocated out without the need to over heat the CPU. | vitalstatistix (9182) | ||
| 658310 | 2008-04-13 04:13:00 | Just to add its fairly rare these days to see only 1 core being utilised. Windows XP and Vista can do some load balancing, however many apps are poor at utilising all cores efficiently even when they are multi-thread. Core 2 Duo's have the exceptional single thread performance anyway, performing more operations per clock cycle than say Pentium D,AMD X2 and Phenom. As above both core run at the 3 gig as in your example. |
Battleneter2 (9361) | ||
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