I noticed that the T7300 is 800 MHz while the RAM clocks in at only 667 MHz, now doesn't this mean that the RAM will effectively be a bottleneck since it only runs at 667 MHz?
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No, your CPU already runs at a much faster speed than the bus and is already bottlenecked by the whole system
The difference is really not that big. I guess there's a "bottleneck" but it'd be like trying to pour water into a funnel with a 5 inch opening vs a 5 1/2 inch opening. Measurable difference? Sure. Will you notice? No. -
I'd be more worried about your HDD as a bottleneck.
The actual fsb isn't 800mhz, its really pumped up there from a lower speed. I think its 266 but I'm not sure for notebooks.
Heres memory tests for the desktop Core 2 Duos, just check out the last two pages. Remember those have a fsb pumped up to 1066, faster then the 800mhz Core 2s out right now and they only notice a small improvement going up from 667 and 800mhz in the gaming tests. -
However, not all SSDs are created equal. Mtron's SSD is the fastest in the world, not only in sustained read/write speed but in sequential & random access speed. A HDD must physically locate data on a platter and position the actuator arm over the correct position before data can be read which translates to seek time. A SSD doesn't have any seek time, it's limited to it's IOPS & read/write speed, which is why you will notice a phenomenal speed increase in application load, file copy, boot time, shut down time, & sleep/hibernation states. Instead of upgrading from 5400 rpm to 15,000 rpm HDD and only shaving off seconds, you go from waiting to seemingly instantaneous with SSD.
Of course the performance boost isn't the only compelling reason to replace a mechanical drive, other incentives:
- No moving parts: no vibration & no noise (totally silent)
- Consumes 50% less power: less heat & longer battery life.
- Lighter weight, translates to lighter laptop.
- 1000 - 1500g operating shock.
- Reliability & Endurance that a mechanical HDD can't provide (50% of computer failure is due to HDD failure!):
-Write Endurance: >140 years @ 50GB write/erase per day
-Read Endurance: Unlimited
-Data Retention: 10 years
I know I've posted this before but when someone states how the HDD is bottleneck I must enlighten others and bring hope to those in need. Rejoice, for the price of SSD per GB will fall by 50% per year and drive size should double each year as well. -
wow, thanks for the very informative answers, you guys really do know your stuff! I'll look into SSD's, I had no idea how big of a bottleneck the HDD is!
I have a quick question while we're on this topic, can you replace your conventional HDD with an SDD on a t61? -
how many times have u posted that exact same post about the sdd snap? seems like ur everywhere with that
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Yea Snap, that post is getting a little long in the tooth.
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The SSD vs HDD info has been posted a total of 3x, but slightly altered for each occasion. I'm not pumping my group buy since new orders are no longer being accepted so I didn't see the harm in spreading the joy. Thanks for not burning me at the stake!
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Naw, Snap its good that you enlighten all of us. Keep it up! Very interesting, I didn't know about it since I saw that thread of yours about it.
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Cant wait for SSD, biggest thing since sliced bread
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Great information thanks
Bottleneck beteween CPU and RAM?
Discussion in 'Lenovo' started by AceOfSpades, Jul 30, 2007.