Gains from Bloomfield to Haswell

[BTRY B 529th FA BN]

What improvements in IPC percentage will be gained coming from a Bloomfield to a Haswell? ~ 20-40% ??

 

[Idontcare]

Depends on the application of course, the instruction mix and so forth.

I suspect your range is probably right though, as a good rule of thumb would go. There will be corner cases in both directions, apps that provide 2-3x IPC increases when using AVX2, and apps that show essentially no IPC improvement when using x87 or some such.

 

[Makaveli]

Well

Bloomfield to Sandy was 10-15%

Then Sandy to Ivy is in the 5-10% range

I've heard Haswell should add another 10% (speculation of course)

So for IPC alone 25-40% sounds right and with more clock speed headroom for overclocking... maybe add another 10% for overall performance.

Depends on the application of course, the instruction mix and so forth.

I suspect your range is probably right though, as a good rule of thumb would go. There will be corner cases in both directions, apps that provide 2-3x IPC increases when using AVX2, and apps that show essentially no IPC improvement when using x87 or some such.

Ah forgot about AVX2 that should bring even greater gains in programs that support it.

 

[pauldun170]

I'm using Haswell right now.
You can expect a 30% increase across the board going from a top of the line Nehalem to low end (i3) Haswell.

Oh wait a minute.
this isn't Haswell.
It's a peanut butter and jelly sandwich.
Sorry about that.

 

[Idontcare]

I'm using Haswell right now.
You can expect a 30% increase across the board going from a top of the line Nehalem to low end (i3) Haswell.

Oh wait a minute.
this isn't Haswell.
It's a peanut butter and jelly sandwich.
Sorry about that.

You wouldn't happen to be an x264 developer, would you?

 

[Haserath]

You wouldn't happen to be an x264 developer, would you?

I bet he received it in a little plastic baggie and nothing else too.:whiste:
----
Haswell has AVX/AVX2/FMA support, higher clocks by 10-20%, IPC should be at least 20% better/more like 30%+, and it'll be lower power.

I'd say it's a worthy enough upgrade.

 

[BTRY B 529th FA BN]

But can that PB&J run Crysis!?

Can you overclock that Peanut Butter N Jelly ?

 

[Idontcare]

But can that PB&J run Crysis!?

Can you overclock that Peanut Butter N Jelly ?

Only if it is made with whole grain wheat bread (the K edition), if it is Italian bread then you are SOL for OC'ing beyond the turbo bins

 

[T_Yamamoto]

Only if it is made with whole grain wheat bread (the K edition), if it is Italian bread then you are SOL for OC'ing beyond the turbo bins

Dang it. Mine is on white bread. Is mine an es?

 

[Haserath]

Only if it is made with whole grain wheat bread (the K edition), if it is Italian bread then you are SOL for OC'ing beyond the turbo bins

Wouldn't it have to be on jalepeno bread? Hot and loaded!

 

[ShintaiDK]

Dang it. Mine is on white bread. Is mine an es?

Fool, everyone knows dark bread is the best. Better sell it or give it to the birds so you can upgrade.

 

[LOL_Wut_Axel]

Well

Bloomfield to Sandy was 10-15%

Then Sandy to Ivy is in the 5-10% range

I've heard Haswell should add another 10% (speculation of course)

So for IPC alone 25-40% sounds right and with more clock speed headroom for overclocking... maybe add another 10% for overall performance.




Ah forgot about AVX2 that should bring even greater gains in programs that support it.

Sandy to Ivy was in the 2-5% range...

 

[BD231]

Sandy to Ivy was in the 2-5% range...

In 'corner cases' of course, in most areas 0% is the more accurate number.

 

[Idontcare]

Wouldn't it have to be on jalepeno bread? Hot and loaded!

Better watch your LLC settings with that stuff man, the unloading can be a real bitch

 

[BTRY B 529th FA BN]

It won't get too hot if you use thermal butter heat spreader on the bread

 

[Makaveli]

It's a peanut butter and jelly sandwich.
Sorry about that.

lmao