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G.Skill Ripjaws CL7 4x4GB or Trident X 2x8GB CL7

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  • Trident
  • Speed
  • Memory
Last response: in Memory
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October 13, 2014 3:14:14 PM

On matx motherboard (better spaciousness with 2x8GB) but also better perfomance with trident X?

I do not think quad channel has much difference with dual channel, but I'm not sure guys

1600

Ripjaws

Series RipjawsX
Memory Type DDR3
Capacity 8GB (2GBx4)
Multi-Channel Kit Dual/Quad Channel kit
Tested Speed 1600MHz
Tested Latency 7-8-7-24-2N
Tested Voltage 1.60v
Registered/Unbuffered Unbuffered
Error Checking Non-ECC
SPD Speed 1333MHz
SPD Voltage 1.50v
Fan lncluded No
height 40 mm / 1.58 inch
Warranty Lifetime
Features Intel XMP (Extreme Memory Profile) Ready


Trident

Series TridentX
Memory Type DDR3
Capacity 16GB (8GBx2)
Multi-Channel Kit Dual Channel Kit
Tested Speed 1600MHz
Tested Latency 7-8-8-24-2N
Tested Voltage 1.50v
Registered/Unbuffered Unbuffered
Error Checking Non-ECC
SPD Speed 1600MHz
SPD Voltage 1.50v
Fan lncluded No
height 54 mm / 2.13 inch
Warranty Lifetime
Features Intel XMP (Extreme Memory Profile) Ready







More about : skill ripjaws cl7 4x4gb trident 2x8gb cl7

a b } Memory
October 13, 2014 3:23:42 PM

Even matching brands you always run a small risk of the ram sets not playing nicely with the other ram set.

Your best option would be 2x8gb, even without the speed difference.
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a b } Memory
October 13, 2014 3:25:11 PM

SPD stands for Serial Presence Device and is a small chip on the memory module that communicates with the BIOS serially to tell the BIOS what the memory settings should be.

The ripjaws will default to 1333Mhz when first put in the computer, if you bought them stating that they are 1600mhz 7-8-7-24 then you most likely will have to go in a manually set the speed and timings. That's the only thing the SPD speed will do and has no ill effect on anything.

Between the two I would take the 2x8gb as it will take a small load off the memory controller so it doesn't have to handle 4 sticks, and they use less voltage as well.
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Related resources
October 13, 2014 4:12:01 PM

Here's a very informative link about it.

http://www.hardwaresecrets.com/article/Everything-You-N...

That being said, in general, if your motherboard will support quad channel, you should probably plan your memory purchase to enable it. Will it help your computer go faster? Maybe. The whole point is that you want to maximize your available bandwidth between the CPU and the memory banks.

In a single channel setup, there are 64 data wires between the CPU and the memory.
In a dual channel, there are 128 wires.
In a triple channel, there are 192 wires.
In a quad channel, there are 256 wires.

That means your maximum bandwidth is a calculation of the data rate x bits transferred per clock. So, assuming in a dual channel setup, vs a quad channel setup, assuming that your memory modules are the same, a quad channel has twice the potential bandwidth available. Whether your processor can utilize that extra bandwidth depends quite simply on the workload. Transfers from memory to CPU are already pretty fast, waiting for the hard drive however (even a SSD) adds an order of magnitude in wait time.

Hence, when enabling quad channel (assuming the CPU is quad channel capable), you are talking about -potential- bandwidth, and if you're buying -new- already, you should plan to buy to enable the maximum speed of your system (unless it's stupidly expensive!).

Given the memory you listed, you didn't specify the motherboard or the processor, and not all processors support quad channel memory. Just because it has 4 slots, that doesn't mean it supports quad channel memory. Currently, ONLY INTEL LGA2011 CPU's support quad channel. That means Sandy Bridge-E/EP processors, or Xeon E3/E5 series of the Ivy Bridge-E/EP and Haswell E/EP.

The Sandy Bridge-EP is reasonable ($200-$300 USD) on eBay, the Ivy Bridge/Haswell versions are... well... rather expensive for the fast ones. 1.9Ghz Haswell E for $250 to start. Faster == more $$. 3ghz i7-5800 series are running around $800.

So - assuming that your machine is indeed a standard desktop (not a highend workstation and/or server) you're running a stock dual channel CPU/MOBO, like a Core i5/i7 series consumer system, with 4 slots available. As such, calculating the rough rating to compare is a matter of dividing the raw MHZ speed by the CL timings (in this case, both are CAS 7). In that case, the 1600mhz TridentX memory is indeed faster than the 1333mhz Ripjaws memory, and it has the advantage of leaving two extra slots available should you decide to increase your memory capacity (you would just buy two more 1600mhz/cas7 sticks - preferably the same brand/make).

With the 4x2Gb you would have to buy all new sticks to increase capacity.

So - go with the TridentX.
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a c 2285 } Memory
October 13, 2014 6:51:02 PM

It really depend on your rig - both are great sets, (nice tight CL), so it depends on the rig, the 4x4GB would be preferable for a X79 rig (2011 socket) as they can run in true quad channel. If you are on AMD or a Intel based dual channel based mobo (1150, 1155 socket for example) then go the 2x8GB set of Tridents, the 2 sticks vs 4 is less stress on the MC (memory controller) and ever so slight performance advantage over a 4 stick set
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October 14, 2014 10:29:33 AM

Thanks guys!

Its for new build with i5 4670k (1150) (maybe if I can, i7 4770k)

the motherboard would be Gigabyte Z97MX (http://www.gigabyte.com/products/product-page.aspx?pid=...)

don't change anything, right? I will have to take Trident X

I did not remember I should change set manually on Ripjaws, thank you faalin


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a c 2285 } Memory
October 14, 2014 5:01:26 PM

Will love the Tri's - great sticks
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