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| Thread ID: 127272 | 2012-10-14 06:16:00 | Ram question | EviLClouD (12981) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 1306765 | 2012-10-14 06:16:00 | Hey quick question regarding my ram. Corsair vengeance ddr3 1600 2x4gb sticks. When viewing CPU-Z it shows the DRAM frequency at 800.0MHz however it occasionally drops to 600-700MHz range. I know cpu's slow down for power saving but does ram do it too? Thanks |
EviLClouD (12981) | ||
| 1306766 | 2012-10-14 06:19:00 | it probably supports voltage adjustments within certain discrete thresholds, if it drops when the activity is low. That'll be it dropping to 1400 and 1200 mhz respectively (since their data rate is double their frequency) |
8ftmetalhaed (14526) | ||
| 1306767 | 2012-10-14 06:22:00 | it probably supports voltage adjustments within certain discrete thresholds, if it drops when the activity is low. That'll be it dropping to 1400 and 1200 mhz respectively (since their data rate is double their frequency) This. |
icow (15313) | ||
| 1306768 | 2012-10-14 06:31:00 | its because its showing the DDR not the DDR3. | Slankydudl (16687) | ||
| 1306769 | 2012-10-14 07:05:00 | it probably supports voltage adjustments within certain discrete thresholds, if it drops when the activity is low. That'll be it dropping to 1400 and 1200 mhz respectively (since their data rate is double their frequency) Um is that a good or bad thing? its because its showing the DDR not the DDR3. Sorry what does that mean? |
EviLClouD (12981) | ||
| 1306770 | 2012-10-14 08:00:00 | It's a good thing generally the slow down (dropping to 600-700mhz) reduces heat and power consumption when the RAM isn't being used, computers do this with lots of components e.g. my CPU is currently running at 800mhz when it has a stock clock of 3.4ghz according to CPU-Z. 800mhz would be the "DDR" speed as DDR RAM has half the effective data rate of DDR3, to get the DDR3 value you simply double the speed (800*2=1600). <-- That's probably not technically correct but it explains the situation. | icow (15313) | ||
| 1306771 | 2012-10-14 08:11:00 | yeah i was confused the first time i used cpu-z also for the same thing. and i also have 2x4gb 1600mhz corsair vengeance. HIGH FIVE. | Slankydudl (16687) | ||
| 1306772 | 2012-10-14 08:59:00 | Sweet thank you for clearing that up! | EviLClouD (12981) | ||
| 1306773 | 2012-10-14 18:53:00 | 800mhz would be the "DDR" speed as DDR RAM has half the effective data rate of DDR3 huh? Not how I understood it. DDR = Double data rate. All DDR RAM runs at twice the speed of the base clock. This includes DDR, DDR2, DDR3. If DDR3 was twice as fast as DDR then it would be 4x the base frequency and called quad data rate or something. The way I understood it was as the clock rates rise the spec gets redesigned to cater for it, including voltage specifications & timings etc. DDR2 and DDR3 basically just run at higher base clock speeds than DDR. Maybe I have it wrong? |
dugimodo (138) | ||
| 1306774 | 2012-10-14 20:04:00 | en.wikipedia.org | KarameaDave (15222) | ||
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