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dx9.1 runs better than dx8.1?
posted in Q/A Help
1
#1
0 Frags +

I really don't understand why, but my frames are consistently smoother using -dxlevel91 than -dxlevel81. Although 8.1 does sometimes give me noticeably more frames, it takes longer to launch and is far more prone to momentarily freezing, especially when I initially connect to a new server.

I don't really mind this (I really like 9.1 in for a lot of reasons), but I was just wondering if anyone could explain this.

Here's my computer specs, if needed:

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HP Elitebook 850 G1
Intel i5 @ 1.6 GHz/2.3 GHz
3.9 GB usable RAM
I really don't understand why, but my frames are consistently smoother using -dxlevel91 than -dxlevel81. Although 8.1 does sometimes give me noticeably more frames, it takes longer to launch and is far more prone to momentarily freezing, especially when I initially connect to a new server.

I don't really mind this (I really like 9.1 in for a lot of reasons), but I was just wondering if anyone could explain this.

Here's my computer specs, if needed:
[spoiler]HP Elitebook 850 G1
Intel i5 @ 1.6 GHz/2.3 GHz
3.9 GB usable RAM[/spoiler]
2
#2
0 Frags +

This is because your graphics card (I believe it's AMD RadeonTM HD 8750M) is much better than your CPU. Putting higher graphics settings in TF2 puts more load onto GPU rather than CPU, so surprisingy for computers like yours, higher graphical settings yield higher FPS.

This is because your graphics card (I believe it's AMD RadeonTM HD 8750M) is much better than your CPU. Putting higher graphics settings in TF2 puts more load onto GPU rather than CPU, so surprisingy for computers like yours, higher graphical settings yield higher FPS.
3
#3
2 Frags +

Dx9 also got a few performance updates in the past

Dx9 also got a few performance updates in the past
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#4
10 Frags +

.

.
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#5
3 Frags +
nobelharvardsDirectX 9.1 does not exist. The valid inputs for -dxlevel are 98, 95, 90, 81, 80. Some of the older Valve games let you launch in DirectX 6 or 7.

Your game will default to 90 or 95 when launching the game because -dxlevel 91 is not a valid launch parameter.

i think it's worth mentioning there's a bug that lets you launch tf2 on directx 7, although it's a hassle and i haven't seen the use.

[quote=nobelharvards]DirectX 9.1 does not exist. The valid inputs for -dxlevel are 98, 95, 90, 81, 80. Some of the older Valve games let you launch in DirectX 6 or 7.

Your game will default to 90 or 95 when launching the game because -dxlevel 91 is not a valid launch parameter.[/quote]

i think it's worth mentioning there's a bug that lets you launch tf2 on directx 7, although it's a hassle and i haven't seen the use.
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#6
5 Frags +
spammyDx9 also got a few performance updates in the past

Yes 2 weeks ago actually http://store.steampowered.com/news/20748/

Reduced CPU usage and improved frame rates for some D3D9 and OpenGL games launched through Steam
[quote=spammy]Dx9 also got a few performance updates in the past[/quote]
Yes 2 weeks ago actually http://store.steampowered.com/news/20748/

[code]Reduced CPU usage and improved frame rates for some D3D9 and OpenGL games launched through Steam[/code]
7
#7
0 Frags +

Okay, thank you. In my circumstance, which dxlevel would you guys recommend - 90, 95, or 98?

Okay, thank you. In my circumstance, which dxlevel would you guys recommend - 90, 95, or 98?
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#8
0 Frags +

the one that gives u the best fps

the one that gives u the best fps
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#9
2 Frags +
TheCapeKidOkay, thank you. In my circumstance, which dxlevel would you guys recommend - 90, 95, or 98?

90 and 95 are identical for me, and 98 is slightly slower

this with a gtx 970 and i5 3570k

[quote=TheCapeKid]Okay, thank you. In my circumstance, which dxlevel would you guys recommend - 90, 95, or 98?[/quote]
90 and 95 are identical for me, and 98 is slightly slower

this with a gtx 970 and i5 3570k
10
#10
2 Frags +
TheCapeKidOkay, thank you. In my circumstance, which dxlevel would you guys recommend - 90, 95, or 98?

I get the best fps with 95, but you should probably just try them all and see which one works best for you

[quote=TheCapeKid]Okay, thank you. In my circumstance, which dxlevel would you guys recommend - 90, 95, or 98?[/quote]
I get the best fps with 95, but you should probably just try them all and see which one works best for you
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#11
0 Frags +

95 should give the best fps

95 should give the best fps
12
#12
1 Frags +

didnt setlet say that gpu offloading is bullshit?

didnt setlet say that gpu offloading is bullshit?
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#13
0 Frags +

Does using dx 90 give you more fps than dx 95?

Does using dx 90 give you more fps than dx 95?
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#14
0 Frags +

why 91, why not 90 or 95?

why 91, why not 90 or 95?
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#15
1 Frags +

I only get about 10 less fps on dx 90 than 81 after they optimized it more

I only get about 10 less fps on dx 90 than 81 after they optimized it more
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#16
4 Frags +

gpu offloading IS bullshit but afaik 95 includes some processing optimisations that make it run slightly better than 90

98 on the other hand has better graphical fidelity at the cost of performance

gpu offloading IS bullshit but afaik 95 includes some processing optimisations that make it run slightly better than 90

98 on the other hand has better graphical fidelity at the cost of performance
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#17
0 Frags +
soladidnt setlet say that gpu offloading is bullshit?

??

[quote=sola]didnt setlet say that gpu offloading is bullshit?[/quote]

??
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#18
2 Frags +
Setletsoladidnt setlet say that gpu offloading is bullshit?
??

I think he means setsul

[quote=Setlet][quote=sola]didnt setlet say that gpu offloading is bullshit?[/quote]

??[/quote]

I think he means setsul
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