Pentium G3258 Bottlenecks Radeon 7870?

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xanxusgao14

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I'm building a gaming PC for my friend, but he's on a tight budget - only $500 - $600. So the new Intel Pentium G3258 20 year anniversary edition came out, and I read that you can overclock it on water to a sick 4.7 GHz, and it only gets 1 - 2 FPS lower than a 4770 with the same GPU. But since he's on a budget, I've decided to go with a AMD Radeon 7870 to go with this. But I will run the Pentium chip on stock cooling, will that bottleneck the 7870, considering it only got the same FPS as the 4770k on water?
 
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Traciatim

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Why would you spend so much on water cooling in a budget rig? You would probably hit over 4Ghz+ on air anyway and could use a cheaper 212 Evo or similar cooler. The Asus boards have been said they will enable overclocking of unlocked chips on their non z87/97 boards so you could save some cash there... The 7870 or 270/270x would be a fine choice for some great 1080p gaming. I have a 6870 with an older i3-530 plugged in to my TV and although you can tell it's not a gaming beast it runs most games really well, this would likely kick the crap out of that machine.

 
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xanxusgao14

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I'm not water cooling this system, just wondering if it will bottleneck the 7870 with stock cooling. I got the water cooling information from Linus.
 
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Traciatim

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I don't think it would be that huge of an issue. You have a pretty solid mid range gaming card with one of the best entry level CPUs you can get cheap. Even if you get a fairly cheap aftermarket cooler and put a mild overclock on it you can squeeze a little extra performance out of it if you need to.

 
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deathcall666

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G3228 is for 400$budgets and lower
-as for equal performance to a 4770. Well its half true. Some gaems just need you to have a cpu and are based on gpu. However other games will simply punish poor 2 core OC or not.
Btw why are you stuck with 7870 when r9 are out , and also are you buying him a monitor also. You made a very weak config really.
 
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CGurrell

CGurrell

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7870 is a 270x just before rebranding, get whichever is cheaper.

Only a few games will need the threads that the 4770k has which the pentium doesn't. Pentium is a great choice for a budget gaming rig.

As above, get a Hyper 212 EVO or, if your budget stretches this far, a cheap all-in-one water cooling unit (e.g. Corsair H60).

I know some companies are allowing OC'ing of the pentium via H/B series boards, but I would still try for a cheap-ish Z97, just to you can definitely get everything out of the chip whilst keeping it stable.

Note: Not all Pentiums will overclock the same. Some won't overclock at all (approx the bottom 5%), some will overclock to over 5GHz (approx the top 5%). Most will probably reacha round 4.4-4.6GHz and be STABLE.
 
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deathcall666

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Of course go buy a g3228 that can fail , that needs OC to run fine , that is a botlleneck clearly , that can fail after the continuous OC it neess. Soo many reason to go on it.
My opinion and my build is the following
CPU: 120$ AMD Fx6300 http://www.newegg.com/Product/Product.aspx?Item=N82E16819113286&cm_re=fx_6300-_-19-113-286-_-Product
MB: 75$ Gigabyte 970a DS3P http://www.newegg.com/Product/Product.aspx?Item=N82E16813128602&cm_re=am3%2b_970-_-13-128-602-_-Product
RAM: 70$ Team Dark 8GB 1600mhz cl9 http://www.newegg.com/Product/Product.aspx?Item=N82E16820313420&cm_re=ram_8gb_ddr3-_-20-313-420-_-Product
HDD: 60$ 1TB 7200rpm 64mb WD http://www.newegg.com/Product/Product.aspx?Item=N82E16822236339&cm_re=hdd_1tb_7200-_-22-236-339-_-Product
SSD: 65$ 120gb Muskin http://www.newegg.com/Product/Product.aspx?Item=N82E16820226236
GPU: 150$ r9 270 2GB/256bit Sapphire http://www.newegg.com/Product/Product.aspx?Item=N82E16814202090&cm_re=r9_270-_-14-202-090-_-Product
170$ r9 270x 2GB/256bit HiS IcQ http://www.newegg.com/Product/Product.aspx?Item=N82E16814161442&cm_re=r9_270x-_-14-161-442-_-Product
PSU: 45$ Evga 500w 80+ eficiency http://www.newegg.com/Product/Product.aspx?Item=N82E16817438016&cm_re=evga_500_w-_-17-438-016-_-Product
CASE: 35$ Rosewill mid-ATX with usb 3.0 http://www.newegg.com/Product/Product.aspx?Item=N82E16811147199&cm_re=case_computer-_-11-147-199-_-Product
The SSD is optional.
no SSD with 270 = 555$
no SSD with 270x= 575$
with SSD with 270 = 620$
with SSD with 270x= 640$

Beteewn r9 270 and 270x there is small diference. They bothe have same core configuration (1280:80:32) but the 270x has higher frequencies and one more pci-E power connector .
What does this mean? The 270x is suited for those that want to overclock. If you dont plan to OC there is no reason to go for it and stick with the 270 non "x". Both GPU get along well with the EVGA 500w.
My opinion is that when you buy a pc and need OC from the start its not really worth it. Especially if you have a mid budget like this. This build is enough for 1080p at high/ultra on all games.
 
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CGurrell

CGurrell

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Deathcall, you clearly have no idea what a bottleneck is... OP, here. Watch this video about bottlenecking before deciding on a CPU http://youtu.be/DAgpvWc4VBM. Even at stock speeds, a Pentium G3258 will probably not bottleneck your GPU. It may perform a little slower in certain games that need more cores/threads, but it won't be a huge difference. Also, as long as you overclock correctly to a stable speed, it will run fine for a LONG time. Here, Linus did a video about the G3258 and 4790k, have a watch and listen to him and Slick, they know more than most. http://youtu.be/evXpqpNhu_Y
 
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deathcall666

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Probably? Okay you thaught i dont know what botlleneck is. Very nice you wanted to corect but in gaming means that your CPU reaches 100% utilization before the GPU reaches it and increasing the GPU power wont change the result.
This is a benchmark im puting here.
http://www.tomshardware.com/reviews/build-your-own-budget-amd-pc,3807-2.html
As you can see puting more than a 260x on a athlon or i3 wont change the game. Puting more wont do a diference. Now considering that in a review the OC athlon x4 760k and OC pentium g3228 perform similar (give it or take it there is no reason to try more powerfull GPU than r9 260x if you cant afford)
Of course that is one benchmark and they wont run all the same. Usually there are 3 scenarios:
-1 )you just need a cpu. The game is so based on GPU that you CPU must be arhaic to influece performance .
As example Batllefield 4. http://www.techspot.com/review/734-battlefield-4-benchmarks/page6.html
It takes a old something older like a x4 645 (its a litlle bigger diference beteewn this and x4 750) to start shaking the performance of a enthusiast card like 290x
-2 )the game is 2 core based but highly relies of single threaded "power" (which intel has plenty of it )
As example Batman :Arkham Origins , skyrim and Thief( where youll see the most of intel eficiency per core over AMD)
http://www.techspot.com/review/733-batman-arkham-origins-benchmarks/page5.html
Here you can see how a system performs better on a i3 than on a amd fx 8 core (fx 8150) and here were talking about titan GPU.
-3) the game relies on highly multithreaded procesors where amd mainstream and low cost perform very well ( given the price)
As example Watch dogs
http://www.techspot.com/review/827-watch-dogs-benchmarks/page5.html
Here we can see no real diference beteewn fx 6 and 8 core amd however when we put the fx 4 core there is a significant performance lose .Same story for amd 4 core and intel 2 core.These game also seems to buthurt older 45nm phenoms lime 1100T which should have performed better. Anything pas fx6300 simply isnt needed.
Now to summarize
Yes intel g3228 is good nothong to say. Clocked at same frequency as a 4790k it will have the same single threaded performance as a 4790k the diference is that you you be punished in multi threaded games that will be more next years with multicore suport.
The fx6300 is a beast. In what sense. You dont need to OC it unless you really want. It may lack single threaded but the single game i saw really bad performances was Thief( still dont get it why is amd promovating that game when its clearly they arent performing soo good). It has enough power not to botlleneck any other GPU. Its a multirole procesor.Its dirty cheap considering the facts.
As a mention a OC G3228 at 4.8 consumes way more ( to be preciselly it consumes like a 4770k) then you put a question. Why struglle so mucb with a g3228 with OC , new cooler , higher TDP for no reason
when you can simply take fx 6300 put it in the MB put the stock cooler and just go.
 
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finkman

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I'm a noob and only researching here for my first build. The question of why OC the g3258? Wouldn't this be a better budget rig decision since you could upgrade to an i5 or i7 when money allows, re-using all other components?
 
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CGurrell

CGurrell

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Simply put, the G3258 will last just as long OC'ed as not OC'ed if cooled correctly, the G3258 is cheaper than the fx-6300, and there's room for upgrades in the future if the OP decides they want a Haswell Refresh (aka devils canyon) or broadwell i5/i7 CPU, without changing out the motherboard.

Also, technical point, bottlenecking is when a GPU cannot reach 100% load due to CPU limitations, not when the CPU hits 100% load before the GPU. If that was the case, then running Prime95 on the CPU and a game at the same time should bottleneck the GPU, which it doesn't
 
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greengarbedprotagonist

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I just recently built a budget rig with the G3258 and let me tell you, I get some great performance for my price point.
Here is my rig: http://pcpartpicker.com/p/sDnTFT
Now I realize I went overkill with a few things but here is the kicker
1000w PSU means I can handle any upgrade (I also got it on sale).
z97 mobo is worth the little extra for upgradability later down the line to a higher end processor on the haswel line (like a i7 4790k) and the board has crossfire support (I got the z97 PC mate from micro center with the G3258 as a combo deal ~$108 for both).
The G3258 is capable of 4.3ghz on the stock cooler with safe temps (50c at idle and 80c at load), 4.7ghz is reported to be easy just with a nice tower air cooler like the hyper evo.
I was running a GTX460 with great results on older games like Fallout New Vegas, Skyrim, and Portal 2 (Basically Max settings between the 1360x768 and 1680x1050 resolutions).
Now I have a 7870 ghz edition.
I am currently running metro last light at high settings, with little to no frame dives, and at 1680x1050 on a 22'' acer, which is great for such a demanding game.
This system also handles wii emulation nearly flawlessly (I was playing HD Wind Waker before it was cool), and league of legends is a breeze even with the older gtx 460.
In case you look at my parts list and think... why old 80mm fans?
That's because I am using an ancient Antec server case I had lying around. Nothing like free parts.
One last thing.
I will suggest to you that if you need the multi core processor now (quad, hexa, octa) then get it. But until I need to go to 3k or 4k and the games are totally optimized for multi core systems it doesn't matter. I currently get 80 to 90% overall gaming performance at the 1080 rez with this processor compared to the haswell's high end i7s (Assuming both rigs have the same GPU).
$50 processor is OP.
 
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CGurrell

CGurrell

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Very nice build, glad it's all working well for you :) I would definitely recommend an aftermarket CPU cooler though, the Hyper 212 EVO is amazing for the price, or you could go closed loop water cooling with something like a H100i (assuming the mounting options for the rad are available). If you haven't got the mounting options but the budget for a better cooler, Noctua's NH-D15 is the best cooling solution shy of water cooling, heck it even beats out the H100i in some cases.
 
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greengarbedprotagonist

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All true. My main issue is that my old case has no cut out and I am worried that with my low deck clearance I won't have room for a rear plate for a tower cooler. I could manually insulate the board or cut out a hole in my shop and then buy a cooler... I just don't have the money for a cheap case, new fans, AND a hyper 212 evo. All told a nice case like an NZXT source 210, full of fans, and a Hyper EVO 212 would be close to $100-150. As a college student without financial aid I pay for everything out of pocket. Maybe next season.
That being said the G3258 will do with a tower air cooler like the hyper evo for MAX potential. 4.7- 4.8ghz seems to be the average performance cap for that processor and the EVO keeps it at safe temps at that OC. Also OC generally lowers life expectancy... so running it lower may give me more time to earn the cash for that i7 4790k down the line.
 
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