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    V505 Review

    Discussion in 'VAIO / Sony' started by Blackened88, Jun 5, 2004.

  1. Blackened88

    Blackened88 Notebook Enthusiast

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    I recently just read abaxter's review of the V505 notebook. He said that the processor of a 1.5Ghz is actually around 2.4Ghz. So tell me what would the 1.8Ghz actually be?
     
  2. Blackened88

    Blackened88 Notebook Enthusiast

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    Thanks abaxter, that would be great to have a 3.06Ghz alittle unnessary though so what about a 1.7Ghz? No wonder why there so expensive at Sony. Also what if I got one with a Hard Drive thats 80GB with RPM's is around 5400, and memory of 1GB would that improve the performance greatly?
     
  3. mathlete2001

    mathlete2001 Notebook Deity

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    ~Okay, this is edited now.

    Here is a chart from my own calculations.
    (D stands for dothan.)
    Pentium M Pentium 4
    1.4 *1.5= 2.1
    1.5 *1.5= 2.25
    1.6 *1.5= 2.4
    1.7 *1.5= 2.55
    1.7D (735) *1.65= 2.805
    1.8 *1.5=2.7
    1.8D (745) *1.65= 2.97
    2.0D (755) *1.65= 3.3

    Here's how I got it: Given that a 1.6 ghz CPU performs as a 2.4 ghz pentium 4, 2.4/1.6=1.5. We can then multiply each of the other BANIAS clock rates by this to find the equivalent. Next, Intel says that the new Dathon core with 2mb l2 cache performs about 10% faster than the old banias core. I multiplied the 1.7 banias core equivalent (2.55) by 110%, and got 2.805. 2.805/1.7=1.65, so I multiplied the last two clock speeds by this, and there you are. Comments are welcome. If anyone has a source that contradicts this, please tell me, I would like to get more information.
    Hope this helps.

    ~Andrew
     
  4. Andrew Baxter

    Andrew Baxter -

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    wow, Andrew has done his homework. My 3.06 guess was high, go with his chart there.
     
  5. Blackened88

    Blackened88 Notebook Enthusiast

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    I was really hoping for a processor capable of 2.6Ghz any suggestions of what processor I should buy to get a 2.6Ghz?
     
  6. mathlete2001

    mathlete2001 Notebook Deity

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    These are in a new thread too, I expect these to be a hot topic. (Man, i'm asking for a lot of criticizm with this chart lol)
    http://www.notebookreview.com/forums/topic.asp?TOPIC_ID=2394

    ~Andrew
     
  7. Andrew Baxter

    Andrew Baxter -

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    LOL, Intel is REALLY trying to ween people off getting too hung up on processor speed. They'd like you to just see that a model series is higher and therefore it equates to faster performance. Nonetheless, you can equate a 1.8GHz Pentium M to about a 3.06GHz Pentium 4 processor.

    Just remember, there are many factors in computer performance and processor speed is just one of those.
     
  8. Blackened88

    Blackened88 Notebook Enthusiast

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    Thanks andrew, but you did not include the Pentium M Pentium 4 1.8Ghz non D.
     
  9. mathlete2001

    mathlete2001 Notebook Deity

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    the 1.7 ghz pentium m performs slightly lower than a 2.6 ghz pentium 4, but consumes far less battery, so it's your call.
    You know, I couldn't find a 1.8ghz banias anywhere, so you may be talking about the Dothan without knowing it. If you overclocked a banias to 1.8, it would equal a p4 2.7, otherwise the 1.8 dothan = pentium 4 2.97 ghz.
     
  10. mathlete2001

    mathlete2001 Notebook Deity

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    I didn't know there was one. Well, multiply by 1.5, following the same constant as the rest of the Banias. 1.8*1.5= 2.7ghz. Note that it isn't the clock speed that is equivalent, it is the performance. A 1.7 ghz pentium M actually is 1.7ghz, but performs at the same level as a 2.55ghz pentium 4. It's the same thing as with the AMD processors. Their FX-51 2.4 ghz processor actually beats a pentium 4 EE 3.4 ghz. This is a fact that Intel is just now starting to address.
     
  11. Blackened88

    Blackened88 Notebook Enthusiast

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    No you didn't confuse me at all, I understand. So in other words your saying go with the 1.8 or whatever because it uses less power and gets the job done pretty much the same as a 2.6.
     
  12. Blackened88

    Blackened88 Notebook Enthusiast

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    So are you saying that if I have a choice of a 2.6Ghz or like a 1.7 or whatever that does 2.6Ghz then it's better to go with the 2.6Ghz then the 1.7.
     
  13. Blackened88

    Blackened88 Notebook Enthusiast

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    All right to make it as easiest for my simplton self to understand is a 2.6Ghz better then a lower Ghz that does 2.6?
     
  14. mathlete2001

    mathlete2001 Notebook Deity

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    Ok, hope i'm not getting too complicated, but it doesn't do 2.6, it just performs at the same level. I see that Intel's flawed marketing has penetrated deep into your soul[ :p]jk.
    To answer you question, the answer is no. The difference would be that the one with the lower clock rate would consume less power, and would probably be cooler, but the performance is the same. The thing is, the pentium m's do about 1 1/2 times as much per clock cycle.
    Let me put it in simpleton terms[ :p]. Let's say person A can go 5 feet with one jump, and Person B can go 3 feet with one jump. Person A can jump 6 times per minute, and person B can jump 10 times per minute. Person A jumps fewer times per minute, but goes farther with each jump. Person B jumps many times per minute, but makes smaller jumps. Even though person B jumps more times per minute than person B, they still each take 1 minute to go 30 feet! Now, switch the number of times they jump per second with "gigahertz" and switch distance per jump with "instruction set". The product is the actual output of the CPU.
    Hopefully now you see that there is more than one factor that affects the performance of the processor.

    OMG i probably just confused the hell out of you, im sorry lol.
     
  15. mathlete2001

    mathlete2001 Notebook Deity

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    Yes, it's just more expensive.
     
  16. Blackened88

    Blackened88 Notebook Enthusiast

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    Ok I'm having a problem finding the V505 with 2.6Ghz so should I just go with the 1.8Ghz, it's pretty much the same. Also what do I need for it exactly to perform at 2.7Ghz. What cache or whatever?