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Will i3 3220 bottleneck HD 7850?

Last response: in Graphics & Displays
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January 7, 2013 12:03:45 AM

Hi guys i m building a budget gaming pc! going for an i3 3220, b75 mobo, 8gb ram and an HD 7850 1gb/2gb!

Will the cpu bottleneck or reduce FPS in gaming?? will the 7850 performs its 100% performance?

Thanks

More about : 3220 bottleneck 7850

January 7, 2013 12:57:55 AM

Hi. No it won't bottleneck your GPU. 1GB is fine but having 2GB wouldn't hurt for future games or monitor upgrade if you can afford it. But you should get either the GTX 660 for £5 more or HD 7870 for £10 more from Amazon instead of the HD 7850 2GB.

£174.99
http://www.amazon.co.uk/dp/B0099AOAP8/

£179.00
http://www.amazon.co.uk/Sapphire-11199-00-20G-HD7870-GD...

Currently most games at your resolution would do fine with 1GB; there's no real difference. This is Skyrim with the high resolution texture pack at 1920 x 1200:




http://www.anandtech.com/show/6359/the-nvidia-geforce-g...

Edit: If you prefer an Asus card, here's a GTX 660 for £177.12. The Asus HD 7870 is too expensive.
www.amazon.co.uk/Asus-DirectCU-Graphics-DisplayPort-Sur...
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a b 4 Gaming
January 7, 2013 1:43:33 AM

The "little" dual core i3-3220 w/HT is an amazing gaming processor for its cost. It will handle just about any GFX card you want to use with very little or no 'bottleneck'. At 1600x1200, the 1GB will probably be sufficient. But I would opt for the 2GB anyway.

(I put that 2GB card in a stock PH II X4 965BE, and it ran any game I tried at 1920x1080 at max settings.)
January 7, 2013 1:56:14 AM

In some games, that are optimised for 4 cores, the i3 3220 will bottleneck.
Eg. Crysis2, BF3, BF:BC2 and a lot others.
a b 4 Gaming
January 7, 2013 2:04:05 AM

It all depends on how much 'bottle neck' one feels is detrimental. If it can run the game at the required resolution and get fast frame rates with max/near max settings, a small amount of bottle neck isn't an issue. If you can't see it, it ain't there.
January 7, 2013 6:24:50 AM

^ The games i listed above played quite shitt!ly with a Core2Duo E7300 @ 3.33 GHZ.
I got ~25-30FPS, with GPU usage ~50%.

I swapped E7300 with a STOCK Q6600.
My FPS immediately doubled. GPU usage=100%.

Agreed, that a i3-3220 should be 40% faster than a E7300. But still, 2 cores cant do the work of 4 cores.
a b 4 Gaming
January 7, 2013 8:07:23 AM

mayankleoboy1 said:
^ The games i listed above played quite shitt!ly with a Core2Duo E7300 @ 3.33 GHZ.
I got ~25-30FPS, with GPU usage ~50%.

I swapped E7300 with a STOCK Q6600.
My FPS immediately doubled. GPU usage=100%.

Agreed, that a i3-3220 should be 40% faster than a E7300. But still, 2 cores cant do the work of 4 cores.

no, an i3-3220 is faster than a q6600 at everything. 2 cores with hyperthreading can do the work of 4 cores.
a b 4 Gaming
January 7, 2013 8:21:38 AM

iam2thecrowe said:
no, an i3-3220 is faster than a q6600 at everything. 2 cores with hyperthreading can do the work of 4 cores.


.. not really, no...

Hyperthreading only makes a difference in programs that can USE hyperthreading, and games? Don't.

At best there's no difference, at worst, the games are slowed down by hyperthreading. That's why you buy an i5 over an i7.
January 7, 2013 8:31:16 AM

One PC with i3 3220 will have lower FPS then the same pc with an i5 3570k. SO, the CPU will hold you back a little and you can call it a bottleneck. The true question is : "will an i3 3220 reduce the performance of the 7850 to an unplayable FPS?" the answer is : "no, you will be fine, the i3 /hd7850 combo will play any modern game @ medium/high/ultra depending the resolution and the ammount of MXAA"
January 7, 2013 12:46:18 PM

iam2thecrowe said:
no, an i3-3220 is faster than a q6600 at everything. 2 cores with hyperthreading can do the work of 4 cores.


2 HT cores are lesser than two actual physical cores. That is why HT is added. With 5-10% increase in die area, you get ~30% performance increase.. Caveat : the application should benefit from HT. This means, it has lots of memory-toCPU copying on one thread, during which the other thread can do CPU work. If the application has interleaved memory access, HT will give no benefit. Plus, cache is shared between real and the HT core. So if one thread has lots of cache thrashing, the other thread will keep waiting for execution. And the overall cache is effectively halved between the two threads.

Regarding this particular case, you could possibly be correct. I have no data off-hand to back my claim.
!