We first check out our Corsair TR3X6G1600C8D kit by opening up CPU-Z:
CPU-Z tells us that we’re running a 6GB kit in triple channel at 1600MHz (800:1 x 2) and our timings are 9-9-9-24. It seems that our settings are correct, so now we move on to MemTach:
From MemTach, we can extract the information that our RAM’s memset is 4338.1 MB/sec and memcpy is 7466.8 MB/sec. The entire benchmark took 16.04 seconds to run.
We now move on to SiSoft Sandra tests.
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| Corsair Cache and Memory | Corsair Memory Bandwidth | Corsair Memory Latency |
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The Corsair kit received the following scores:
| Tests | Corsair 6GB |
| 84.282 GB/s | |
| Memory Bandwidth | 26.456 GB/s |
| Memory Latency | 62.3 ns |
Frink NFrank: Yes I neglected to take into account the case of triple channel. I was looking at it from a single DIMM perspective as the first comment was in relation to DIMM capacity rather than speed.
yeah what he said, pretty much. I would keep praying for more RAM slots rather than higher single stick capacity. The only benefit of having DDR3 over DDR2 is the higher bandwidth, but the speed definitely suffers.
“The only benefit of having DDR3 over DDR2 is the higher bandwidth, but the speed definitely suffers.”
Since we are only talking nano seconds, the order of magnitude of bandwidth over latency is staggering. I assure you DDR3 7-7-7-24 @1600 is quite a bit faster than DDR2 @1066. Especially if you factor in the bandwidth benefits of triple channel that you cannot get from DDR2.
Still only 2GB per memory stick. When will higher density (e.g. 4 GB) sticks come out? Or aren’t the memory companies re-tooling and moving to smaller fab sizes?
Well, They already have 4GB Sticks and that’s all most mobo’s can handle. The real problem that most people over look is that you dont really need more than 3GB of RAM. Most people will never use it all. I have 4GB and the only time I can get it to break 3GB is when I run Crysis on maxed out settings and have Photoshop, Movie Maker, and about 10 other programs running in the background. It is really the Speed that matters, not the actual size. Also, Its better to have 4 -1GB sticks than it is to have 1 – 4GB stick, and that is something that will never change.
Eaxmple of a Kingston 4GB RAM stick…
http://www.newegg.com/Product/Product.aspx?Item=N82E16820134863