BLOOMFIELDS CLOCK THE SAME

[rjk]

Dear all OcUK forum users

lots of threads are cropping up recently. there seems to be a lot of confusion.

all bloomfiled CPUS clock the same.

if you have a D0 stepping 920, 930, 950, 960, 975

all of these cpus clock the same.

they are bloomfiled cpus

they clock the same.

they have different multipliers

but they clock the same.

if you have a bloomfiled D0 cpu
you can overclock to 4.2Ghz using 200X21 using around 1.35v

IT REALLY IS THAT SIMPLE

there is no need for multiple threads about the matter
they all do it.

all the bloomfield D0 chips do it

if you have a gulftown/westmere the same applies but with 1.325v
there is no need for further discussion.

 

[rjk]

cloud


no matter tha amount of JD i have drunk and the amount of spelling mistakes that Jon and gary have poijted out

i can still clock your bloomfiled cpu to 4.2ghz on any cooling other than stock without drama

 

[rjk]

So they're not speed-binned at all?

they are NOT speedbinned

explain why i have three i7 920 cpus on my desk at work that clock like demons

and outclock 950s

 

[rjk]

cloud

any bloomfield cpu will do 4ghz

a bloomfield cpu on a decent cooler will do 4.2

this is a fact

 

[rjk]

without wishing to sound rude or condecending.

if you have a bloomfield

and you have a motherboard that does 200 BCLK

then you can get 4.2ghz with ease



200BCLK
21 multi

memory set to rated speed+timings

llc enabled
cpu vcore to 1.35v - 1.38v
dram volts to 1.65


done - no issues. these settings work on every single board

i am sick and tired of seeing these threads where people are asking the difference between a 920 a 930 and a 950

they have different multis
they clock the same, 200 X 21 does it.

i have overclocked over 5000 i7 cpus now.
they all clock the same if they are bloomfield cores

 

[rjk]

cloud.

i do 10+ 4ghz overclocks on i7 cpus every day. if you are having those issues then you havent got your cpu cooler mounted properly.
im not trying to put you down, the ocuk forums are here to help mate

however - this thread was made so that i could link the 1+ daily threads we get from people wondering about bloomfield

this:

bclk 200
multi 20
vcore 1.2750
RAM 1.65v
everything else on AUTO
p95 max temp @ 12 hours: 78c.

is totally fine...

 

[rjk]

BACK TO THE TOPIC

BLOOMFIELDS CLOCK THE SAME

IF YOU HAVE A 920

IT CLOCKS THE SAME AS A 930

A 950

A 960

A 975

IT IS A BLOOMFIELD

IT

CLOCKS

THE

SAME

 

[rjk]

So therefore they dont all clock the same do they

speedbinning suggests that the higher rated chips should overclock further.

in actual fact the chips are identical and all hit the highest stable overclock at around the same speed. 4.2ghz ish

sure - put the chip on a good board and you might get 4.3 - 4.4 on standard cooling.

and yes, a lot of the early 920 d0 chips can outclock a current 950
but we are not talking stability.

at the end of the day, they are all the same when it comes to 24/7 capabilities.

all bloomfields are the same.
it seems that there is at least five threads a day on the same subject.

"is a 950 worth it over a 920"
"can i hit 4ghz on the 930 easier than on a 920"
"should i get a 960, this cpu is surely better than the 920"

every X58 does 200BCLK
every bloomfield is capable of 21 multi

this is no mystery

 

[rjk]

i consider outclocking to mean the top end achievable overclock or 'what the cpu is capable of hitting with lots of volts'

sure you get the odd chip that will do 4.6ghz+ but these chips arent going to be capable of sustaining that under conventional cooling.

24/7, all bloomfields overclock the same, within about 5% of eachother. 4.2ghz +/- a few hundred MHz
that figure will be very similar across every cpu in the range.

 

[rjk]

If rjk is refereing to clocking with highend air, then the view that "they all clock the same" is perfectly true.
However, under water of phase, that view is not always the case.
I for instance use phase 24/7 and the 5ghz clock in my sig is what i use. As you can see, that's with a 975. The same SS will not take ANY 920 that i have ever used anywhere near to 5ghz, let alone on a 24/7 stable basis.

yes kfit
exactly that, obviously i am referring to conventional cooling.
there used to be a time where watercooling made a massive difference.
in my opinioin, custom water offers nothing over high end air cooling apart from silence and aesthetics.
obviously your SS unit will churn out more MHz from any cpu. but under a run of the mill heatsink, all bloomfields are gonna be rather similar

Essentially I think that's what he is getting at. 950 is about £25 more expensive than a 930 but both should overclock the same as they are based on the same chip. The only difference is the stock speed

hit the nail on the head there