yeskay :
raphaelaz :
Thank you very much for your time!
Do you think i need better cooler/fan than original with i7-870 and gtx 970?
Also i read some people say there is so called bottlenecks with old cpu and new graphic cards, can this happen with i7-870 / acer m5910 motherboard + gtx 970 combination?
Bottleneck? May be a little or May not. Let me give you a simple answer. If a guy can pair a NVIDIA TITAN graphics card with an i7 920, which was released way back in Q4 2008, and play Crysis 3 comfortably. There is no reason why you cannot pair a GTX 970 with an i7 870, which was released in Q3 2009, and play current games including Crysis 3 comfortably.
Check out these videos:
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Crysis 3 Core i7 920 and GTX TITAN
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Shadow Of Mordor Bench GTX 970 / i7 930 @ 4GHZ
The stock cooler may do fine. But if you're skeptical, get this:
PCPartPicker part list /
Price breakdown by merchant
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($28.89 @ OutletPC)
Total: $28.89
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-04-27 14:19 EDT-0400
In the end, I would say, first check with the stock cooler. If the results are not satisfactory, then get the above said cooler.
Cheers!
Lynnfield just isn't fast enough for the newer high end graphics cards at stock clocks. I hit some pretty severe CPU bottlenecks in Crysis 3 and GTA V with my i5 760 at stock, and even with an overclock to 3.5GHz it's still there, just not as severe, and I only have a GTX 770. The i7 does have hyperthreading, which will help a bit for some titles, but if the game is reasonably CPU heavy, but doesn't scale beyond 4 threads, then the OP is going to run into problems.
It's not specified whether the i7 920 in the Crysis 3 bench was overclocked or not, and on the Shadow of Mordor video it was overclocked to 4GHz from the stock speed of 2.8GHz for the i7 930. The i7 870 by default is clocked at 2.93GHz, and he's not going to get an OC to 4GHz, or any OC at all on an OEM motherboard from Acer. The OP can buy a GTX 970 if he wants, but he's likely only going to get maybe 80% performance out of it at best, so it might not be worth dropping the extra $100 over say a GTX 960 unless he plans on moving the 970 over to a newer platform in the near future.