can 2 DDR3 perform same as DDR4?

[Alquist]

Im wondering about can double channel DDR3 perform same as a single DDR4? For example:
2x DDR3 1333Mhz 10.6 Gb/s
Single DDR4 2600Mhz 21.3 Gb/s

 

[BlaezaLite]

In my very limited experience. No.

 

[Alquist]

In my very limited experience. No.

I tried to do research about it but couldn't find any topic or video

 

[mx62]

this is "i think" the fastest dd3

RAM reviews Corsair CMY8GX3M2A2666C10 4GB, characteristics, performance

RAM reviews Corsair CMY8GX3M2A2666C10 4GB, main characteristics, specifications and performance in benchmarks

ram-comparison.com

read 22.8 GB/s
write 15.4 GB/s

 

[tabascosauz]

Im wondering about can double channel DDR3 perform same as a single DDR4? For example:
2x DDR3 1333Mhz 10.6 Gb/s
Single DDR4 2600Mhz 21.3 Gb/s

Is this just strange curiosity or are you trying to make a decision on hardware?

Theoretical maximum bandwidth you see on wikipedia basically isn't relevant in real life. Too many factors - CPU platforms, timings. And it still comes back to CPU performance in the end so unless you have one CPU that can take both DDR3 or DDR4 (e.g. Skylake but only officially for 1.35V), there's no valid comparison to be made across different platforms.

And single channel of any kind is to be avoided, always - so as far as most people should be concerned, the dual channel DDR3 setup is honestly still a much better choice.

 

[Alquist]

Is this just strange curiosity or are you trying to make a decision on hardware?

Theoretical maximum bandwidth you see on wikipedia basically isn't relevant in real life. Too many factors - CPU platforms, timings. And it still comes back to CPU performance in the end so unless you have one CPU that can take both DDR3 or DDR4 (e.g. Skylake but only officially for 1.35V), there's no valid comparison to be made across different platforms.

And single channel of any kind is to be avoided, always.

yes its just curiosity, thanks for info.

 

[AlwaysHope]

OP, now you got me curious where you got those figures from?

 

[Zyll Goliat]

In short YES it can be faster/better but as @tabascosauz said above it is 2 many factors included beside the ram speed.....
here bellow you can see my test of ddr3 in passmark 10(working on 1540Mhz/yes I know weird speed but that's because OC)compared to the some others ddr3 and ddr4 My ram is working in QUAD channel so yes it can be faster then some ddr4 in dual channel....

 

[delshay]

I was collecting DDR3 SODIMMS many years ago. ...I still have all the fastest DDR3 SODIMMS ever made 2133 from three manufactures Corsair, Kingston & G.Skill .."8 & 16GB kit".
The standout kit is the rare "32GB kit" from G.Skill. Don't remember seeing any laptop that had four memory slots, but in any case I have the kit here.

 

[Yukikaze]

The HP ZBooks from the G2 generation had 4 memory slots. I also have two sets of 2133Mhz SODIMMs

 

[Alquist]

OP, now you got me curious where you got those figures from?

I was watching some ddr3 vs ddr4 performance videos and there was a high difference in fps and I felt a bit bad but knowing if I do dual channel it will perform same as ddr4 (single) is good.

 

[ExcuseMeWtf]

High end DDR3 in dual channel can perform as well or better than lowest entry level single stick of DDR4.

More apples-to-apples would be obviously a lost cause.

 

[Hervon]

2 x DDR3 Sticks will perform as well as 1 x DDR6. Simple Maths.

 

[XL-R8R]

My lowly old 2400Mhz DDR3 is still doing ok:

It roughly matches a set of DDR4 Corsair Vengence @ 3000MHz (15-17-17-35) but with slightly better latency.

 

[Count von Schwalbe]

I was collecting DDR3 SODIMMS many years ago. ...I still have all the fastest DDR3 SODIMMS ever made 2133 from three manufactures Corsair, Kingston & G.Skill .."8 & 16GB kit".
The standout kit is the rare "32GB kit" from G.Skill. Don't remember seeing any laptop that had four memory slots, but in any case I have the kit here.

I have one, the Lenovo P61 in my sig.

Has anyone tried to bench RAM generational differences (DDR3 vs. DDR4) locked to the same frequency and timings with the same CPU? I have been wondering if the difference is just what freq/timings it can achieve.

 

[Bomby569]

Im wondering about can double channel DDR3 perform same as a single DDR4? For example:
2x DDR3 1333Mhz 10.6 Gb/s
Single DDR4 2600Mhz 21.3 Gb/s

Running the risk of saying something stupid, the speed of the 2 DDR3 modules will still be 10.6 Gb/s. It doesn't double speed just because you have 2, that math doesn't make sense.
Running dual channel increases performance but by how much it depends on a lot of factors, for example if you have old intel CPU's the answer would be almost nothing, for ryzen it would be by a lot.

Besides that timings and latency are very important in that comparison to.

 

[Alquist]

Running the risk of saying something stupid, the speed of the 2 DDR3 modules will still be 10.6 Gb/s. It doesn't double speed just because you have 2, that math doesn't make sense.
Running dual channel increases performance but by how much it depends on a lot of factors, for example if you have old intel CPU's the answer would be almost nothing, for ryzen it would be by a lot.

Besides that timings and latency are very important in that comparison to.

my dreams were shattered but thanks for clearing out that using double channel doesnt mean double bandwidth.

 

[eidairaman1]

my dreams were shattered but thanks for clearing out that using double channel doesnt mean double bandwidth.

It's theoretical performance

 

[Deleted member 185158]

Running the risk of saying something stupid, the speed of the 2 DDR3 modules will still be 10.6 Gb/s. It doesn't double speed just because you have 2, that math doesn't make sense.
Running dual channel increases performance but by how much it depends on a lot of factors, for example if you have old intel CPU's the answer would be almost nothing, for ryzen it would be by a lot.

Besides that timings and latency are very important in that comparison to.

To increase the information -

Dual channel lets the processor read and write from 2 sticks simultaneously. Thus increasing the performance throughput.

Yes the memory still runs the same speed, but the cpu has access to additional memory so there's less wait time while multi-tasking.

The reason why Single vs Dual channel in most games makes little difference is because the information is being written read, it's just being read after loaded. The GPU does almost all the rendering, so the effects of dual channel vs single are minimal differences.

Overclocking -

1 stick should always clock higher than running 2 sticks. 2 sticks faster than 4.
So you could maximize bandwidth but at single channel reduction which only effects certain programming.

And lastly, each DDR revision brings Bandwidth to the table. Bandwidth is king. Latency isn't everything. So each revision is a 50% increase in bandwidth. More information in and out at a higher frequency. And that's why we overclock!!!! Moar Poawer!!!!

 

[AlwaysHope]

It's theoretical performance

This industry as a whole is bloated with that concept. Look at the USB standards as an example & "theoretical" data transfer speeds that can be accomplished with x, y or z generations of it.
The end user gets no where near any of those claimed data transfer speeds.

 

[Ociya Syndor]

I was collecting DDR3 SODIMMS many years ago. ...I still have all the fastest DDR3 SODIMMS ever made 2133 from three manufactures Corsair, Kingston & G.Skill .."8 & 16GB kit".
The standout kit is the rare "32GB kit" from G.Skill. Don't remember seeing any laptop that had four memory slots, but in any case I have the kit here.

this thing has 4 dimms & which i was wanting the c10 version of that 32gb gskill kit way back when

 

[masterdeejay]

Haswell-ep cpu that supports DDR3 and DDR4:

Clock2clock ddr3 is faster but just because the lower timings.

Xeon E5 2678v3, DDR3 1866MHz (9-9-9-22) vs DDR4 2133MHz (12-11-11-28)

So i think ddr3 1600 is the same performance as DDR4 ~2000 for gaming, but is only valid for this haswell-ep cpu.
Some architecture sensitive for timings, channels some are not.
Old core2 duo can use DDR1-DDR2-DDR3 but not much difference in games.

 

[delshay]

this thing has 4 dimms & which i was wanting the c10 version of that 32gb gskill kit way back when

So the sockets are mounted back-to-back ie both sides of the motherboard, first time I've seen that.. There was never a 2133 CL10, all the SODIMM'S here are CL11. Not sure if I can lower the timings as all my SODIMMS have never been used ie there still in the original "open box". .. There was supposed to be 2400 by Kingston or G.SKILL can't remember which company but it was never released as I was looking to buy for months..