4gb slower than 2gb ram???

[fisk73]

I had 2gb ram from apple factory in my mbp. I did a geekbench test and this was the result:

Memory Score 2539

Read Sequential
single-threaded scalar 3531
4.32 GB/sec

Write Sequential
single-threaded scalar 2641
1.81 GB/sec

Stdlib Allocate
single-threaded scalar 2575
9.61 Mallocs/sec

Stdlib Write
single-threaded scalar 1878
3.89 GB/sec

Stdlib Copy
single-threaded scalar 2072
2.14 GB/sec


Then I put in 4gb patriot ram from newegg. The memory score on geekbench is worse... What could this be from?? Here is the results:

Memory Score 2432

Read Sequential
single-threaded scalar 3493
4.28 GB/sec

Write Sequential
single-threaded scalar 2631
1.80 GB/sec

Stdlib Allocate
single-threaded scalar 2062
7.69 Mallocs/sec

Stdlib Write
single-threaded scalar 1882
3.90 GB/sec

Stdlib Copy
single-threaded scalar 2095
2.16 GB/sec

 

[The Flashing Fi]

Slower timings than that of the RAM that comes with the MBP.

Seriously though. Do you really think it's going to matter?

 

[fisk73]

Even though it has a worse score through geekbench and slower timings than the factory ram will the 4gb be better over the 2gb?

 

[J the Ninja]

If you run any benchmark repeatedly, you will find the results aren't all that consistent. A deviation of a few % is expected.

Second, speed and capacity of RAM are two totally different things, and are mostly unrelated. The test measures speed and throughput of the memory, not capacity, which is what you upgraded. Worse timings, as mentioned, mean slower RAM.

 

[fisk73]

thanks that helps

 

[SnowLeopard2008]

You probably made the same mistake I made, I used 667mhz ram when my bus speed was 800mhz.

 

[sammich]

Did you do those after a fresh restart?

I guess there are also small differences between manufacturers too, not to mention that Apple Ram *could* be superior

EDIT: looks like it did really badly on 'Stdlib Allocate' part of the test, maybe some research in that area might shed some light on your problem.

 

[fisk73]

You probably made the same mistake I made, I used 667mhz ram when my bus speed was 800mhz.

Ya my ram is 667mhz... but by bus speed is 800mhz.. If I purchased 800mhz ram would it be very much of a difference over the 667mhz?

 

[Nipz]

Ya my ram is 667mhz... but by bus speed is 800mhz.. If I purchased 800mhz ram would it be very much of a difference over the 667mhz?

Well it would preform as apple intended 🙂

 

[rychencop]

Well it would preform as apple intended 🙂

the factory memory was/is not 800Mhz. they all shipped with 667Mhz. and a quick search indicates you still can't find 800Mhz ram for notebooks all that easy.

 

[Nipz]

Thats weird! thought they would ship the ram at the same speed if you get me!