None what so ever? Which benchmarks, can you post a link
😉 ?
http://www.barefeats.com/mbcd2.html
"
DO MATCHING MEMORY PAIRS MAKE IT GO FASTER?
We tested the MacBook Pro with both matching pairs of 1GB SDRAM and non-matching pairs (one 1GB and one 256MB module). There were gains: 51% in Quake 3, 18% in Doom 3, 2.5% in iMovie, and 3.5% in Photoshop CS."
"THERE IS MORE TO SPEED THAN A FAST CPU
Your laptop spends much of its time reading from and writing to the internal hard drive. You can increase performance by installing a faster hard drive. Hitachi and Seagate have notebook 7200RPM drives that hold 100GB. Apple now offers a 7200rpm Configure To Order option when you purchase the MacBook Pro online.
"
Expanding your memory to the maximum 2GB can increase performance in two ways:
1) The more memory you have, the less time is spent transferring to/from the disk based virtual memory.
2) Applications like Photoshop and Motion use memory as cache. If you don't have enough, they are forced to use the hard drive as scratch area.
Unfortunately, you can't upgrade the graphics processing unit (GPU) as you can with Power Macs. It's a shame that Apple's innovation doesn't include socket based GPU modules -- similar to what AlienWare uses with their laptops"