What is best for gaming, 250GB or 500GB SSD?

Tar2010

Honorable
Dec 16, 2013
13
0
10,510
Hi guys

At the moment I'm searching for the best SSD's for my gaming computer.
So far I have bought 3 SSD's and I have some questions regarding results on some tests I have done.

Before I bought anything I did some research and read some reviews. After what I could read I identified some strong candidates and bought them for testing. In the reviews I did not find much difference between 250GB and 500GB drives, but when I have being doing tests I found some differences I don't like and really don't understand. I'm just a noob when it comes to testing SSD's so I will only present some findings I have done and hopefully you guys can help me understand this results.

Here is the disks I have been testing so far:
SanDisk Extreme II SSD 240GB
SanDisk Extreme II SSD 480GB
Seagate 600 SSD 480GB

Im waiting for Samsung 840 Pro Series 512GB and will add test results for that one later.

Here is my results so far:

mf9o.png


There seem to be a trend that both the 480GBs is performing worse than the 240GB, especially at writing smaller file sizes but also read.

If I sum up all the results it get like this:

63be.png


In my tests the 240GB SSD beat both the 480 SSD's on read and write, and the stats for both Sandisk is more or less identical and in other reviews both score similar in most tests. Why is there so much difference in some of my tests? can it be my motherboard?
Is this enough to conclude that I should keep the 240GB and send the others back?
 
Solution
do you notice a significant difference in game loading times?

do you need more than 250GB for your games?

if no & yes, then keep 480GB
if yes & no, then keep 250GB
if yes & yes, then keep 480GB
if no & no, then keep cheapest

leeb2013

Honorable
do you notice a significant difference in game loading times?

do you need more than 250GB for your games?

if no & yes, then keep 480GB
if yes & no, then keep 250GB
if yes & yes, then keep 480GB
if no & no, then keep cheapest
 
Solution

Tar2010

Honorable
Dec 16, 2013
13
0
10,510
Here is an update for Samsung 840 Pro:

l2iw.png


For some unknown reason Samsung 840 Pro om my system have almost double write speed on random write 512K compared to SanDisk Extreme II SSD 480GB and Seagate 600 SSD 480GB. Also 4K random write is much higher on the 840 Pro. AT 4K random write QD32 the 840 Pro reach more than double speed than segata 600.
Also read speed all over is higher on 840 Pro than the other 480GB drives.

So Sandisk extreme II 240GB vs Samsung 840 Pro, the 240Gb is faster in many read and write areas. The Iops is also much higher on 240GB compared to the 512GB Samsung.
And this is one thing that is puzzeling me. Why does the 240GB get so much higher iops than all the 480/512Gb I tested.

With samsungs own tool "samsung magician" Samsung 840 Pro get:
Read iops: 68361 Write iops: 31100

Sandisk extreme II 240GB
Read iops: 95129 Write iops: 75488

As you can see, the iops on write is almost 150% more on 240GB an read iops is almost 50% higher on the 240GB disk.

Why is this the case? Why does the 480/512GB SSD's completly underscore on iops when the 240GB doing close to what is expected? Can this have something to do with my "older" motherboard Asus P8P67?


 

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