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Best socket 775 CPU for Radeon HD 3850 AGP

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Reply 60 of 76, by Lazar81

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A new idea came to my mind... Would an AM2 with agp platform with a phenom II X4 (965 or 970) a big improvement compared to the 775 with e5800?

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Reply 61 of 76, by mothergoose729

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Lazar81 wrote on 2021-02-25, 16:40:

A new idea came to my mind... Would an AM2 with agp platform with a phenom II X4 (965 or 970) a big improvement compared to the 775 with e5800?

Not for games, no. The phenom II is around the same speed as the 45nm core2duo and doesn't clock much higher. And I have doubts that you can find an AM2 board with phenom II support. I believe that processor required AM2+ , but I am operating off of memory there.

I have an ASRock quad vista which can run core2quads at 1066mhz FSB. It has AGP and PCIE on the same board. Windows 98 works ok on it. Pretty neat. If you just want the raw power for its own sake. You would want a 65nm core2quad extreme edition for the unlocked multiplier. I tried an E6 pentium proccessor on it, a weird skew from china with an unlocked multi, and it wouldn't set correctly, but maybe 65nm core2 extreme would. Not faster for gaming through.

Reply 62 of 76, by Lazar81

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I could imagine the ASRock am2nf3 vsta could handle it... But am not sure

Is there any Mainboard cpu combination that would be way better then my current setup... What about socket 939... ?

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Reply 63 of 76, by mothergoose729

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Lazar81 wrote on 2021-02-25, 17:45:

I could imagine the ASRock am2nf3 vsta could handle it... But am not sure

Is there any Mainboard cpu combination that would be way better then my current setup... What about socket 939... ?

For games, no. The only thing that would be better is a 1333mhz or 1600mhz capable FSB 775 board and I don't think any exist with AGP. The E5800 is a very popular choice for these kinds or projects for that reason. Enjoy.

Reply 64 of 76, by Lazar81

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Ok... Is it worth to keep eyes open for the revision 3.0 of the 775i65g? As far as I can see, the 1066 fsb support is a little bit better and the additional amr slot isn't there anymore. But according to some research it looks like the r3.0 also likes fsb800 CPUs best...

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Reply 65 of 76, by mothergoose729

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You can probably just overclock the FSB on your current board and get the same result. The E5800 is the best choice on all of these boards because of the high multiplier. The only reason not to use the E5800 is if your board could support the E8000 series wolfdale processors, and I don't know of any AGP equipped boards that are capable of a 1333mhz FSB.

Maybe you could get a E8000 series with an unlocked multiplier to run at a lower FSB and then just up the multi. I don't know if anyone has tried it, but if you could it would be marginally faster. The only difference is the L2 cache size; it is 6mb on the wolfdale processors and 2mb on the E5000 series, but that doesn't make as much of a difference as you might think.

Reply 66 of 76, by Lazar81

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The Serpent Rider wrote on 2021-02-25, 11:50:

No chance... Crashes beyond 235...

In that case, changing memory won't matter.

As you said... The Samsung is nice, but nothing stable possible beyond 230..
Thx for the help

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Reply 67 of 76, by Lazar81

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mothergoose729 wrote on 2021-02-25, 19:23:

You can probably just overclock the FSB on your current board and get the same result. The E5800 is the best choice on all of these boards because of the high multiplier. The only reason not to use the E5800 is if your board could support the E8000 series wolfdale proc3essors, and I don't know of any AGP equipped boards that are capable of a 1333mhz FSB.

Maybe you could get a E8000 series with an unlocked multiplier to run at a lower FSB and then just up the multi. I don't know if anyone has tried it, but if you could it would be marginally faster. The only difference is the L2 cache size; it is 6mb on the wolfdale processors and 2mb on the E5000 series, but that doesn't make as much of a difference as you might think.

If it makes not that much of a difference, then there is no real reason for me to jump into this...
Thx for the information

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Reply 68 of 76, by mothergoose729

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Some benchmarks for comparison:
https://www.anandtech.com/bench/product/58?vs=98
https://www.anandtech.com/bench/product/62?vs=98

You can get more performance with a 65nm or 45nm core2duo, but in the case of the 65nm core2duos that performance difference shrinks a lot when you overclock them both, and I would be surprised if you could get a 45nm wolfdale to post on your board at all, but if you could it would definitely be significantly faster.

Reply 69 of 76, by cyclone3d

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bloodem wrote on 2021-02-24, 21:47:

There might be some E5800 ‘golden chips’ out there that can hit 4.0 GHz without needing a vcore bump, but I would imagine they are quite rare. 😀
All in all, not needed... The E5800 is still very fast for WinXP even at stock speed (and it’s insanely fast for Win98).

I was doing testing a few months ago with an FX5950U in Win98 on an ASROCK 4core-dual vsta (I think that is the exact model). That GPU at stock speeds is CPU limited up to around 3.3Ghz with C2D x6800. At least in 3DMark 2001.

I had to do the pencil volt mod on the board to get the fsb up around 300Mhz.

The fsb speed increase helps a lot as well.

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Reply 70 of 76, by Lazar81

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mothergoose729 wrote on 2021-02-25, 17:46:
Lazar81 wrote on 2021-02-25, 17:45:

I could imagine the ASRock am2nf3 vsta could handle it... But am not sure

Is there any Mainboard cpu combination that would be way better then my current setup... What about socket 939... ?

For games, no. The only thing that would be better is a 1333mhz or 1600mhz capable FSB 775 board and I don't think any exist with AGP. The E5800 is a very popular choice for these kinds or projects for that reason. Enjoy.

Sry... I can't give it a rest 😬... Don't get me wrong - I really like my setup as it is now... But: just for fun - let's say the 3850 agp is the device around which everything else is build and the system will be XP - then what? Is there a reason not to choose socket 775 or exactly this asrock board (775i65g)...
I understood that choosing a 939 or AM2 platform wouldn't deliver any real improvement in gaming. Then a 775 board is the best choice for a 3850 agp? But if so... Is there a better one then the 775i65g

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Reply 71 of 76, by mothergoose729

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If you really want to go crazy, you can try and find someone to make you an AGP->PCI Express adapter and put it in whatever board you want. The rabbit hole is always deeper.

Reply 72 of 76, by Lazar81

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mothergoose729 wrote on 2021-02-26, 21:03:

If you really want to go crazy, you can try and find someone to make you an AGP->PCI Express adapter and put it in whatever board you want. The rabbit hole is always deeper.

Like this one?

https://www.heise.de/imgs/18/1/5/7/9/6/0/054c … 7d5a1eb432c.jpg

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Reply 73 of 76, by dragonerosso

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hi guys. I've just bought an amd hd3850 agp and i would to pair it with a q6600 with a asrock 4coredual-vtsa. with 2gb of ram. I arleady have a core 2 duo e6700. Which cpu is the best for gaming compatibility? I plugged this system on my eizo t550 crt 😀))) thanks

Reply 74 of 76, by bloodem

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Hi and welcome to VOGONS! 😀

What is the purpose/what are you trying to achieve with your build?
Since you have a 4CoreDual-VSTA, I think you probably spent a bit too much on the graphics card. 😀 There are other cheaper and better options on PCI Express.
As for the CPU, I would say that the current CPU you have is one of the best that your motherboard supports and a good match for that video card.

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Reply 75 of 76, by Lazar81

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dragonerosso wrote on 2021-05-24, 14:18:

hi guys. I've just bought an amd hd3850 agp and i would to pair it with a q6600 with a asrock 4coredual-vtsa. with 2gb of ram. I arleady have a core 2 duo e6700. Which cpu is the best for gaming compatibility? I plugged this system on my eizo t550 crt 😀))) thanks

I don't know your Mainboard. But with my ASRock 775i65g I found the perfect companionship with an e5800 (800 fsb) and the 3850. For a Windows XP system it's a great setup. I never tested the Q6700 that I have lying around (it just wouldn't make much sense)
What system do you wanna run? XP... Vista... 7... I guess both are ok on Windows XP. Don't know about Vista. Above that I would decide for a quad core.

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Reply 76 of 76, by BitWrangler

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If life lacks meaning, the cool thing you can do on socket 775, is to install a Pentium D and spend the rest of your life trying to find that ONE thing that it runs significantly faster than a single core HT P4 of similar clocks. 😉

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