CAS 2.5 vs CAS 3

[Tash]

Newegg is selling the Corsair Value Select CAS 2.5 for $49
and the CAS 3 for $51.

How come the 2.5 is cheaper ? Isn't it better?
The Manufacturer's part number is the same except the CAS 3 has "C3" tacked onto the end. Even the title of the description is identical - and both are "Retail".

Which should I get?

Thanks.

 

[imported_Slider]

The cas3 is retail, I think.

 

[Oyeve]

They are selling a gig of the VS for 91 bucks! 2.5 cas.

 

[GprophetB]

same ram i have, very nice ram...

 

[Tash]

Which should I get? The CAS 2.5 or 3?

 

[Mojo027]

The CAS 2.5 is a lot better.

The difference between....

CL 2 and CL 2.5 --- Not too much
CL 2.5 and CL 3 --- A LOT MORE!


The reason why it's cheaper, is because the CL 2.5 chips are produced in a larger volume, shrinking the bulk production costs. Supply and demand.

 

[Corporate Thug]

Originally posted by: Tash
Which should I get? The CAS 2.5 or 3?

lower is better

 

[Jotho]

Originally posted by: Mojo027
CL 2.5 and CL 3 --- A LOT MORE!

A lot more in what? Not gaming, I notice no diff between CL2.5 and CL3 in real-world gaming and 3DMark05 gained about 10-11 3DMarks @ CL2.5.

 

[Machine350]

Originally posted by: Mojo027
The CAS 2.5 is a lot better.

The difference between....

CL 2 and CL 2.5 --- Not too much
CL 2.5 and CL 3 --- A LOT MORE!


The reason why it's cheaper, is because the CL 2.5 chips are produced in a larger volume, shrinking the bulk production costs. Supply and demand.

Agreed. :thumbsup:

 

[imported_whatever]

Originally posted by: Jotho

Originally posted by: Mojo027
CL 2.5 and CL 3 --- A LOT MORE!

A lot more in what? Not gaming, I notice no diff between CL2.5 and CL3 in real-world gaming and 3DMark05 gained about 10-11 3DMarks @ CL2.5.

3DMark05 is almost entirely GPU bound. Try running 3DMark01 or even 3DMark03, there will be a MUCH bigger difference in them.

 

[w00t]

get 2.5

 

[Ike0069]

Originally posted by: w00t
get 2.5

 

[Brian48]

I just bought a 1 gig (2x512) of Corsair VS from newegg last week when they had the sale. It's good stuff. Zipzoomfly.com also has the 2x512 kit on sale for 91.50 this week also.

 

[Fern]

Originally posted by: Tash
Newegg is selling the Corsair Value Select CAS 2.5 for $49
and the CAS 3 for $51.

How come the 2.5 is cheaper ? Isn't it better?
The Manufacturer's part number is the same except the CAS 3 has "C3" tacked onto the end. Even the title of the description is identical - and both are "Retail".

Which should I get?

Thanks.

I went through this about a week or two ago. Couldn't figure the diff either.

Funny thing, when I installed the ram, set it to "SPD" it came out as Cas 3.0?

You peeps who just bought the Corsair VS @ 2.5, have you confirmed its running at 2.5?

I set my down to Cas2.5, but couldn't pass memtest86 test #5 consistently so I ended up RMAing it anyway.

Fern

 

[Mojo027]

I see ram prices are finally settling in a trough. When I bought my 2 x 512mb Corsair VS DDR400 CL 2.5 last July, it cost me something like $280 Canadian.

 

[Jotho]

Originally posted by: Mojo027
I see ram prices are finally settling in a trough. When I bought my 2 x 512mb Corsair VS DDR400 CL 2.5 last July, it cost me something like $280 Canadian.

Ouch! My KVR sticks were $215 CDN total in August.

 

[Conky]

Originally posted by: Fern

Originally posted by: Tash
Newegg is selling the Corsair Value Select CAS 2.5 for $49
and the CAS 3 for $51.

How come the 2.5 is cheaper ? Isn't it better?
The Manufacturer's part number is the same except the CAS 3 has "C3" tacked onto the end. Even the title of the description is identical - and both are "Retail".

Which should I get?

Thanks.

I went through this about a week or two ago. Couldn't figure the diff either.

Funny thing, when I installed the ram, set it to "SPD" it came out as Cas 3.0?

You peeps who just bought the Corsair VS @ 2.5, have you confirmed its running at 2.5?

I set my down to Cas2.5, but couldn't pass memtest86 test #5 consistently so I ended up RMAing it anyway.

Fern

CPU-Z reports my Corsair VS running at 2.5-3-3-6. :thumbsup:

 

[Fern]

Thanks, I figured I just got a bad batch. I heard the VS is not checked b4 shipped by them.

 

[Waylay00]

I can't tell a difference between CAS 2.5 and 3, but get the 2.5 most definately since its so cheap.

 

[Oyeve]

Originally posted by: Crazyfool

Originally posted by: Fern

Originally posted by: Tash
Newegg is selling the Corsair Value Select CAS 2.5 for $49
and the CAS 3 for $51.

How come the 2.5 is cheaper ? Isn't it better?
The Manufacturer's part number is the same except the CAS 3 has "C3" tacked onto the end. Even the title of the description is identical - and both are "Retail".

Which should I get?

Thanks.

I went through this about a week or two ago. Couldn't figure the diff either.

Funny thing, when I installed the ram, set it to "SPD" it came out as Cas 3.0?

You peeps who just bought the Corsair VS @ 2.5, have you confirmed its running at 2.5?

I set my down to Cas2.5, but couldn't pass memtest86 test #5 consistently so I ended up RMAing it anyway.

Fern

CPU-Z reports my Corsair VS running at 2.5-3-3-6. :thumbsup:

Thats what I get also, got 2 gigs of it. Works great, cost cheap.

 

[tcsenter]

How come the 2.5 is cheaper ? Isn't it better?

There is no way to know the reason in this particular case, but prices aren't always determined by the grade, size, length, weight, speed, et. al. relative to other grades, sizes, lengths, weights, speeds, et. al.

The most likely explanation is supply and demand; there was a glut of CAS 2.5 chips relative to CAS 3.0 chips when Corsair purchased them, or Corsair found itself with an excess of CAS 2.5 modules relative to 3.0 and priced them accordingly.

 

[LED]

Which should I get? The CAS 2.5 or 3?

You'll be lucky to get Cas2 or even 2.5 from the 3 stuff whereas CAS2.5 will hit Cas2 in a lot of cases @ default setting

 

[509th]

This explains it well.............

CAS speed differences studied