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Help me pick a CPU for an thrown together computer

post #1 of 11
Thread Starter 
Hi All,

I have a bunch of parts lying around that I am to make a computer for AutoCAD Civil for my wife. I have everything except a CPU so, help me pick one for her!

Current parts:

Sapphire HD 7970
AsRock 970 Extreme4
180GB Intel 330 SSD
16GB of some okay RAM

The use will be for AutoCAD Civil 3D, and thats probably it. Maybe some general web browsing or youtube watching as well. So, I would like a CPU that is evenly matched for the system and will run will with the rest of the components. I will NOT be overclocking this system and I would like to have a decent bang for the buck.

Thanks!


Edit: I found an Athlon II X2 260 laying around but I doubt it is any good.
Edited by GeekMan - 6/17/16 at 6:40am
post #2 of 11
Based on this:

https://knowledge.autodesk.com/support/autocad/troubleshooting/caas/sfdcarticles/sfdcarticles/Multithreading-or-multiprocessor-capabilities.html

I 'd say, get a FX6300 and it will be plenty for everything. AUTOCAD doesn't use too much multithreading it appears, so no need to go FX83xx.

If you find the price of FX6300 too much, you can safely fall back to FX4300, it will still be a good CPU. Simply the 6300 will have more "legroom" for future program updates that will use more multtithreading and for doing more things at the same time, while using AutoCAD.

But, even the FX4300 will do. I usually advice 83xx for anything AM3+ these days, but if you want the max bang for buck for today's CAD, the 4300 does that. The FX6300 is more "futureproof".

None of them should have any trouble with browsing or youtube. The FX6300 will probably be a bit snappier in browsing, since Chrome is multithreaded, but nothing to write home about. If you don't mind the price of the 6300, i 'd go for that, it's simply better and more "modern" CPU (quad core AMDs are becoming the minimum nowdays). If you want max bang for buck, get FX4300, they are sold very cheaply these days.

The Athlon 260 could also do the job, given that AutoCAD is not very multithreaded, but it will be worse in everything.
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post #3 of 11
If no overclocking was planned I'd personally probably go for an FX-4350 ($88 on Amazon) for the extra factory clockspeed, but you cant go wrong with a FX-6300 as undervolter suggests.
post #4 of 11
Quote:
Originally Posted by 7850K View Post

If no overclocking was planned I'd personally probably go for an FX-4350 ($88 on Amazon) for the extra factory clockspeed, but you cant go wrong with a FX-6300 as undervolter suggests.

I would get the 6300 over the 4300 seeing as the price is close. Actually I would look for a $99 8300.
post #5 of 11
Despite what you said about not overclocking, before you run out and nab either the FX-4300 or FX-6300 (both good choices, just by the way) why not try overclocking the 260? I have a 270, and I used to have it running at 4.0GHz easily. Stock voltage is pretty high, so you should be able to get 3.8-4.0GHz easily with the stock cooler. If that's good enough, then stick with it, if not? well, you have been given some good recommendations here thumb.gif
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post #6 of 11
Thread Starter 
Hi all thanks for the input, I'll dish some reps out. Sounds like the 6300 is pretty unanimous so I will go with that and a cheap aftermarket quiet cooler!
post #7 of 11
Quote:
Originally Posted by GeekMan View Post

Hi all thanks for the input, I'll dish some reps out. Sounds like the 6300 is pretty unanimous so I will go with that and a cheap aftermarket quiet cooler!

It will be plenty. Just a tip, in case you want more "oomph" down the road. 99% of all 6300s, can hit 4Ghz at stock voltage. Unless you get a very low leaker chip, that at stock runs at very low voltage. But, quick and dirty guide for 4Ghz (i have Asrock 970 Extreme3, so they must be similar).

Disable APM, Turbo, LLC (load line calibration).
CPU multiplier x20
CPU voltage 1.30-1.32 (run Prime95 overnight for stability, if you are stable, you can even drop voltage a notch and test again for lower voltage/heat).
(the CPU settings are enabled once you put the voice about overclocking to manual).


Basically, you pay for 6300 and you get 6350 performance for free. Your motherboard can handle the 6300@4Ghz without problems. I know you don't want to overclock, i didn't want to either, but since the turbo already goes to 4.1, i thought "what the hell, i may as well bring all cores to 4Ghz". And it's worth it.

But even at 3.5Ghz - Turbo 4.1, you will build a nice machine.
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Crucial BX100 250GB Western Digital Green 2TB LiteOn Blu-Ray Burner IHBS 112-2 LG BH16NS55 Blu-Ray Burner 
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post #8 of 11
Quote:
Originally Posted by GeekMan View Post

Hi all thanks for the input, I'll dish some reps out. Sounds like the 6300 is pretty unanimous so I will go with that and a cheap aftermarket quiet cooler!




As the owner of many FX cpu's the 6300 is a favorite of mine and is currently in one of my rigs. That being said I would still look for a 95 watt 8300 eight core instead since they are the same price as the 6300.
post #9 of 11
Thread Starter 
After bidding on a FX 6300 and FX 8300, I won the FX 8300 at $85 shipped NEW. So, I guess that is the processor I will be going with. Price difference at that price between 6300 and 8300 was negligible.
Edited by GeekMan - 6/19/16 at 6:29am
post #10 of 11
Quote:
Originally Posted by GeekMan View Post

After bidding on a FX 6300 and FX 8300, I won the FX 8300 at $85 shipped NEW. So, I guess that is the processor I will be going with. Price difference at that price between 6300 and 8300 was negligible.

Even better. Although you won't see any benefit in AutoCAD, having more cores never hurt anyone. biggrin.gif You have amazing prices in the US. You can use the same overclocking settings for the 8300, to hit 4Ghz in a future, if you decide so.
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EVGA 430W Sharkoon VG4-V Logitech M90 Onboard 
CPUMotherboardGraphicsRAM
FX-8300 Asrock 970 Extreme3 HIS 6570 Silence Corsair XMS3 1600Mhz 8GB (2x4GB) CAS9 
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Plextor M6S 128GB Toshiba 2TB SATAIII LiteOn Blu Ray burner IHBS 112-2 Xigmatek Balder 
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Main
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CPUMotherboardGraphicsRAM
FX-8320@4Ghz Gigabyte 970 UD3P rev2.1 Gainward GTX 750Ti Corsair XMS3 1600Mhz 16GB (4x4GB) 
Hard DriveHard DriveOptical DriveOptical Drive
Crucial BX100 250GB Western Digital Green 2TB LiteOn Blu-Ray Burner IHBS 112-2 LG BH16NS55 Blu-Ray Burner 
CoolingOSMonitorKeyboard
Scythe Katana 3 Windows 7 Pro 64bit ASUS 22" VS228HR Microsoft Wired Keyboard 600 
PowerCaseMouseAudio
EVGA 430W Sharkoon VG4-V Logitech M90 Onboard 
CPUMotherboardGraphicsRAM
FX-8300 Asrock 970 Extreme3 HIS 6570 Silence Corsair XMS3 1600Mhz 8GB (2x4GB) CAS9 
Hard DriveHard DriveOptical DriveCooling
Plextor M6S 128GB Toshiba 2TB SATAIII LiteOn Blu Ray burner IHBS 112-2 Xigmatek Balder 
OSMonitorKeyboardPower
Windows 7 Pro 64bit Samsung S22B350H Microsoft Wired 600 Corsair VS350 
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Lepa LPC 306 Logitech M90 Onboard 
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