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Old 12-23-11, 04:52 AM   #1
K007
 
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Default Bethesda, most embarassing CPU optimization of the decade

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Skyrim was coded in x87 code.

It does not have SSE optimization which has been standard for both AMD and Intel for nearly a decade now. Never-mind the new advanced vector extensions now available. They should have optimized for SSE 4 and AVX... not x87.

This is just a total blunder on Bethesda's part and absolute embarrassment. Unbelievable, I just can't believe they did this. Confounds me.

This is probably among the top reasons why Skyrim only runs on two threads.

http://en.wikipedia.org/wiki/X87
http://www.skyrimnexus.com/downloads/file.php?id=4387

Some comparison pics with FPS display:

1. Solitude Before and After

2. Markarth Before and After
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Old 12-23-11, 06:27 AM   #2
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Default Re: Bethesda, most embarassing CPU optimization of the decade

first the 4gb address and now this?
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Old 12-23-11, 08:19 AM   #3
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Default Re: Bethesda, most embarassing CPU optimization of the decade

Yeah thats weird.. i mean how sloppy can you get..
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Old 12-23-11, 08:39 AM   #4
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Default Re: Bethesda, most embarassing CPU optimization of the decade

I'm not too savvy on alternative architectures but what uses x87? Is it an extension of x86? Furthermore, would skyrim benefit from using more than two threads? I mean significantly benefit? Does it not run really well as is?
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Old 12-23-11, 09:13 AM   #5
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Default Re: Bethesda, most embarassing CPU optimization of the decade

huge difference in Markath...which must've been cpu limited before....now it's smooth as butter, no chop to be found.
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Old 12-23-11, 09:31 AM   #6
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Default Re: Bethesda, most embarassing CPU optimization of the decade

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Originally Posted by Redeemed View Post
I'm not too savvy on alternative architectures but what uses x87? Is it an extension of x86? Furthermore, would skyrim benefit from using more than two threads? I mean significantly benefit? Does it not run really well as is?
x87 is just the standard FPU without any SIMD FP acceleration. It's 'sort of' like having the game run in software mode rather than hardware mode.

x87 was actually a separate FPU (math) chip as far back as the 386. Some 486's didn't have them either or they were disabled... Can't remember offhand.
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Old 12-23-11, 09:47 AM   #7
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Default Re: Bethesda, most embarassing CPU optimization of the decade

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Originally Posted by Redeemed View Post
I'm not too savvy on alternative architectures but what uses x87? Is it an extension of x86? Furthermore, would skyrim benefit from using more than two threads? I mean significantly benefit? Does it not run really well as is?
Your looking at 30-40% increase in performance.
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Old 12-23-11, 10:05 AM   #8
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Default Re: Bethesda, most embarassing CPU optimization of the decade

Ya I am using this now and there is a very noticeable difference in towns. Thanks to the modders!
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Old 12-23-11, 03:02 PM   #9
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Default Re: Bethesda, most embarassing CPU optimization of the decade

Quote:
Originally Posted by K007 View Post
Quote:
Skyrim was coded in x87 code.

It does not have SSE optimization which has been standard for both AMD and Intel for nearly a decade now. Never-mind the new advanced vector extensions now available. They should have optimized for SSE 4 and AVX... not x87.

This is just a total blunder on Bethesda's part and absolute embarrassment. Unbelievable, I just can't believe they did this. Confounds me.

This is probably among the top reasons why Skyrim only runs on two threads.

http://en.wikipedia.org/wiki/X87
http://www.skyrimnexus.com/downloads/file.php?id=4387

Some comparison pics with FPS display:

1. Solitude Before and After

2. Markarth Before and After
OMG THEY SHOULD ALL BE LINED UP AND SHOT. THEN WE WILL TORTURE THEM TO DEATH. AFTER THAT WE WILL KILL THEM, THEN REVIVE THEM AND KILL THEM TO DEATH AGAIN. AFTER THAT WE WILL SEND THEM TO DETROIT WITH A LOT OF BLING BLING AROUND THEIR NECKS.

WTF! stfu and play the game. I can't believe the stuff you guys cry about.
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Old 12-23-11, 03:57 PM   #10
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Default Re: Bethesda, most embarassing CPU optimization of the decade

It's posts like this that make devs go down CliffyB road.
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Old 12-23-11, 03:58 PM   #11
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Default Re: Bethesda, most embarassing CPU optimization of the decade

Quote:
Originally Posted by Gregor976 View Post
x87 is just the standard FPU without any SIMD FP acceleration. It's 'sort of' like having the game run in software mode rather than hardware mode.

x87 was actually a separate FPU (math) chip as far back as the 386. Some 486's didn't have them either or they were disabled... Can't remember offhand.
OH! I am familiar with the math co-processor back in the day! Been so long I didn't even consider that.

Wow... this seems like a rediculously major over sight on their part.

Quote:
Originally Posted by K007 View Post
Your looking at 30-40% increase in performance.
Yeah, now that I know what they're referring to I can see the increase.

Quote:
Originally Posted by ElL33t View Post
OMG THEY SHOULD ALL BE LINED UP AND SHOT. THEN WE WILL TORTURE THEM TO DEATH. AFTER THAT WE WILL KILL THEM, THEN REVIVE THEM AND KILL THEM TO DEATH AGAIN. AFTER THAT WE WILL SEND THEM TO DETROIT WITH A LOT OF BLING BLING AROUND THEIR NECKS.

WTF! stfu and play the game. I can't believe the stuff you guys cry about.
Bloody vagina much?
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Old 12-23-11, 04:12 PM   #12
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Default Re: Bethesda, most embarassing CPU optimization of the decade

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Originally Posted by Yaboze View Post
It's posts like this that make devs go down CliffyB road.
Being a gaming rockstar?
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