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Thursday, 29 March 2007 16:37

Corsair 4x1 GB on Vista

Written by Sanjin Rados

 Image

Review:  Kingston HyperX 4x1GB does it as well


 

For today’s menu we decided to use Windows Vista x64-Bit edition and different memory configurations. It was a logical choice because we used 4GB of memory in this experiment. Many memory manufacturers are selling 4GB memory kits and they focus on the gamer market. If you are a gamer and you already have 2x1GB of memory you might want 4GB for better performance. The best way to upgrade is to buy a 4GB kit (2x2GB). The other option is to buy 2x1GB and add them to your existing 2GB. In this case you end up with 4x1 GB modules. 

 

Image

 

We used 4x1GB of memory. The plan was to try it with Corsair memory, but after we experienced a bad response from the system with 4GB memory, we included the Kingston’s memory too. The same problem occurred again. It seems that memory optimization is not on the desired level and this can easily be BIOS and motherboard related. 

 

 Image

  

We used:


EVGA 680i SLI Motherboard
Intel Conroe Core2 Extreme X6800
Corsair CM2X1024 8500C5D
Kingston 9600 KHX9600D2/2G
Gainward Bliss 8800GTS
OCZ GXS 850W gameXstream


We didn’t compare Corsair and Kingston 2GB kits. We wanted to focus on the 4GB performance of the 4x1 configuration. Corsair memory works on 1066MHz default, Kingston 1200MHz default, but we tweaked its speed to 1066MHz.  

 

Benchmarks

 

 

Super Pi

1MB

8MB

32MB

 

Corsair CM2X1024 PC2-8500C5D 4GB

17s

03m 39s

17m 38s

 

Kingston HyperX KHX9600D2K2/2G 4GB

17s

03m 40s

17m 35s

 

Corsair CM2X1024 PC2-8500C5D 2GB

17s

03m 42s

17m 55s

 

 

Mathematical calculations on 32 decimals are done 17sec faster when using 4GB of memory. The results are nothing special and nothing to be proud of. It shows that 4GB counts but not that much.  

 

Sandra 2007

Memory Bandwith

Memory Latency

Cache&Memory

 

Corsair CM2X1024 PC2-8500C5D 4GB

5411 /5422

78ns /70.1

20255MBs /57.9

 

Corsair CM2X1024 PC2-8500C5D 2GB

5470 /5448

76ns /67.8

19578MBs /63.3

 

Kingston HyperX KHX9600D2K2/2G 4GB

5587 /5590

76ns /71.1

20600MBs /57.5

 

Kingston HyperX KHX9600D2K2/2G 2GB

5487 /5494

78ns /69.9

19789MBs /60.8

 

 

You can see, the only evident difference is better memory latency. The first time 2 GB was better against 4GB, the second time 4GB won against 2GB. Silly isn’t it? The 2GB kit scored 76ns with 2GB memory against 78ns with 4GB memory and vice versa.

 

 

AutoGK video encoding .vob 1GB

Memory

 

 

 

Corsair CM2X1024 PC2-8500C5D 4GB

14:42

 

 

 

Corsair CM2X1024 PC2-8500C5D 2GB

15:00

 

 

 

 

Doing video encoding is always slow work but extra memory can save you some time. It will save you exactly 1m 12s which is not that bad after all. After couple of hours it's enough to make a lunch brake.

 

FEAR

1024x768

1280x1024

1600x1200

2048x1536

Corsair CM2X1024 PC2-8500C5D 4GB + video encoding

172

135

103

73

Corsair CM2X1024 PC2-8500C5D 2GB + video encoding

165

135

107

78

Kingston HyperX KHX9600D2K2/2G 4GB + video encoding

167

136

107

75

Kingston HyperX KHX9600D2K2/2G 2GB + video encoding

163

134

107

76

 

We tried to load a system with HD encoding video during the FEAR test. Just as we suspect, Vista x64 can't find value in additional 2GBs of memory. At the end on the highest 2048x1536 resolution we scored five FPS less than we had previous with only 2GB system. Very odd.  

 

 

Company of Heroes

1024x768

1280x1024

1600x1200

2048x1536

Corsair CM2X1024 PC2-8500C5D 4GB

121.2

94.8

69.9

32.9

Corsair CM2X1024 PC2-8500C5D 2GB

120.1

94.8

70.2

46.5

Kingston HyperX KHX9600D2K2/2G 4GB

121.2

93.1

69.9

33.5

Kingston HyperX KHX9600D2K2/2G 2GB

115.0

92.5

71.4

43.6

 

At first glance, at lower resolutions we gained a couple FPS using 4GB of memory. On 1600x1200 resolution things started to turn weird again, just like in FEAR. On this resolution 4GB is losing by 2GB, and at high 2048x1536 resolution we get a horrible score as the 4GB kit loses by a big margin. It is not clear what happened but it might be the bad BIOS / memory and Windows memory management. We also believe that some games might need a patch to address more than 2 GB of memory anyway. 

 

Conclusion

We tested 2x2GB of memory before and at that time these kits didn't even work properly on three of our four boards. Things are getting better, but we still cannot properly utilize the 4x1 GB kits. 


I can tell you that it will be useful but it is not that easy to prove this claim. in Frames per second you don't gain much but the overall Windows experience improves. It's very simple. Once you load the whole 2048MB and start a new application or game things will get very slow on 2 GB machine. This is the time when you will realize that you actually might need more than 2GB. The first choice is 4 GB of course, and 4x1GB is the easy one.


We can recommend 4GB kits to everyone one who wants to go really hard core, like playing games at super high resolutions, encoding HD and maybe even render a complex 3D scene. This is when your Quad core and 4 GB will really pay of, on 64 bit Vista of course.  


Both Corsair and Kingston did a good job as it simply works at 1066 MHz you can make four times 1024MB work. We didn't want to go in overclocking wars as this was not the point, but we will include a 2x2GB kit in such a test and try to figure out is 2x2 better than 4x1. 

 

Last modified on Friday, 30 March 2007 01:22
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