Overclockers UK Forums Click here for more details
Free Shipping for Loyal Forum Members - CLICK HERE

Go Back   Overclockers UK Forums > Hardware > Laptops & Tablets

Reply
 
Thread Tools
Old 1st Dec 2011, 16:51   #1
lfc
Associate
 
Joined: Nov 2011
Posts: 53
NVIDIA GeForce GT 550m vs 555m

Just been comparing these two and wondered if anyone could explain the results:


  1. Pixel Shaders - the higher the number the better?
  2. The range of the core speed for the 555m starts lower and goes only slightly higher than the 550m - which is better?
  3. Same as 2 but this time for Shader Speed - again, which is better?
  4. Max memory speed is the same for both? Are there any advantages for being able to go lower?
  5. Do you want a higher memory bus if possible (so is the 555m better here)?
  6. 3DMark appears to be a program used for testing the cards performace, with 01 being the oldest version, 06 the newest. Why does the 550m have higher readings than the 555m on the older version but not on the newer?
  7. Again with the 3DMark, what do the red/pink and green bits mean?
lfc is offline   View trust for Reply With Quote
Old 1st Dec 2011, 17:20   #2
TheHitMan-1973
Wise Guy
 
Joined: Feb 2010
Location: Haywards Heath
Posts: 1,059
Last edited by TheHitMan-1973; 1st Dec 2011 at 17:26.
TheHitMan-1973 is offline   View trust for Reply With Quote
Old 1st Dec 2011, 17:21   #3
lfc
Associate
 
Joined: Nov 2011
Posts: 53
What do you mean? It's fine for me
lfc is offline   View trust for Reply With Quote
Old 1st Dec 2011, 17:58   #4
str
Mobster
 
Joined: Oct 2002
Posts: 2,739
The GT550M in the L702x is like a GT555M in that they both have 144 cores but the GT550M is clocked at 475 and 950 for the core and shader clock speed whereas the GT555M is 590 and 1180 for the core and shader clock speed. The other difference is the GT550M has either 1GB or 2GB which means it'll be 128-bit (2 x 512MB or 2 x 1GB) whereas the GT555M is 192-bit.

Saying all that it's not easy to compare the two but from what has been said recently, the GT550M can be overclocked to bring it close to the GT555M level of performance but of course the GT555M can be overclocked too.
str is offline   View trust for Reply With Quote
Old 2nd Dec 2011, 15:32   #5
lfc
Associate
 
Joined: Nov 2011
Posts: 53
Quote:
Originally Posted by str View Post
The GT550M in the L702x is like a GT555M in that they both have 144 cores but the GT550M is clocked at 475 and 950 for the core and shader clock speed whereas the GT555M is 590 and 1180 for the core and shader clock speed. The other difference is the GT550M has either 1GB or 2GB which means it'll be 128-bit (2 x 512MB or 2 x 1GB) whereas the GT555M is 192-bit.

Saying all that it's not easy to compare the two but from what has been said recently, the GT550M can be overclocked to bring it close to the GT555M level of performance but of course the GT555M can be overclocked too.
Ah okay - so the figures in the image are the max possible for each card, but in the L702x they are just not maxed out in all areas yeah?
lfc is offline   View trust for Reply With Quote
Old 2nd Dec 2011, 15:53   #6
str
Mobster
 
Joined: Oct 2002
Posts: 2,739
I would say those figures give a rough idea of performance. I'm not sure if it is maxed out or not.
str is offline   View trust for Reply With Quote
Old 2nd Dec 2011, 17:31   #7
craig_kennedy83
Mobster
 
craig_kennedy83's Avatar
 
Joined: May 2007
Location: Glasgow, Scotland
Posts: 2,927
Quote:
Originally Posted by str View Post
The GT550M in the L702x is like a GT555M in that they both have 144 cores but the GT550M is clocked at 475 and 950 for the core and shader clock speed whereas the GT555M is 590 and 1180 for the core and shader clock speed. The other difference is the GT550M has either 1GB or 2GB which means it'll be 128-bit (2 x 512MB or 2 x 1GB) whereas the GT555M is 192-bit.

Saying all that it's not easy to compare the two but from what has been said recently, the GT550M can be overclocked to bring it close to the GT555M level of performance but of course the GT555M can be overclocked too.
That's what i've done, my 550M is at a modest 700 core, 1400 shader, 1100 Memory... It has made some difference! Think its about 10-15% quicker than a stock 555M now (but as you say, that can also be over clocked)

People clock them much much further, volt mod and all that stuff, I'm not into any of that jazz!

If there was the perfect laptop and had either of these cards, I would take it I don't think there is too much of a difference to rule out a good machine due to something so similar!

Plaese read the FAQ regadring singatrues
craig_kennedy83 is offline   View trust for Reply With Quote
Old 2nd Dec 2011, 18:01   #8
ShortWarning
Mobster
 
Joined: May 2004
Location: Middlesex
Posts: 3,234
Is it a good idea over clocking the 550/555? I was under the impression that over clocking these can cause over heating in a laptop?

Live/PSN - ShortWarning
ShortWarning is offline   View trust for Reply With Quote
Old 2nd Dec 2011, 19:33   #9
TheHitMan-1973
Wise Guy
 
Joined: Feb 2010
Location: Haywards Heath
Posts: 1,059
Ive overclocked my GT555 to the following with no heat problems

Also takes my window score to 5.7

Core Clock 730 MHz
Shader Clock 1460 MHz
Memory Clock 1110 MHz



Uploaded with ImageShack.us
Last edited by TheHitMan-1973; 2nd Dec 2011 at 19:41.
TheHitMan-1973 is offline   View trust for Reply With Quote
Old 3rd Dec 2011, 02:16   #10
craig_kennedy83
Mobster
 
craig_kennedy83's Avatar
 
Joined: May 2007
Location: Glasgow, Scotland
Posts: 2,927
Quote:
Originally Posted by Ardmanz View Post
Is it a good idea over clocking the 550/555? I was under the impression that over clocking these can cause over heating in a laptop?
Seems to be the CPU that gets nearer it's thermal max than the GPU!

Actually, overclocking didn't seem to do much to the temps at all...!

Plaese read the FAQ regadring singatrues
craig_kennedy83 is offline   View trust for Reply With Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT. The time now is 10:48.


Powered by vBulletin®
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.
Overclockers UK (Ocuk Ltd)