Using Prime 95 version 28.5 to determine stability I set it to "small FTTs" because that setting is better for stress testing CPUs than the mixed setting. When I first tried to overclock it I decided I wasn't going to mess around and set the voltage to 1.4v. Which is a fair amount faster than my 2 GHz triple channel set was on my x58.Ĭons: This chip cooks. And the memory read bandwidth was 28.9 GB/sec and write bandwidth was 41.9 GB/sec. I'm running 2x8 GB sticks 2666 MHz at 1.65v, which admittedly may be contributing to my core temps.
The memory controller on this chip is extremely efficient for dual channel memory. Which is extremely impressive, especially considering the 980x is a $1000 6 core 12 thread chip with more 元 cache than this one and is still one of the fastest chips money can buy. In all the benchmarks I ran the 4790K came in faster than my older 4.5 GHz i7 980x. It appears that the vast majority of these chips are capable of running at 4.8 GHz and there are some that will run at and even above 5 GHz. Especially based on its price and compared to AMDs similar offerings. The 4790K really is an incredibly powerful CPU. 4.0ghz and a crazy 4.4ghz under turbo boost 2 and lower temperatures than early Haswell is something I was unable to ignore.
It's a great upgrade for anyone running with Sandybridge or earlier, however I am not sure if it is as valuable for people with overclocked Ivybridge or Haswell cpu's.īottom line if looking for a new cpu this is it.
However I have noticed that converting video in Handbreak is definitely faster with this cpu. I have not seen any major differences in fps in games as at 2560x1440 the video cards are more important than the cpu. The 4770 is returning a total score of 16,750 and the 4790K is returning a score of 17,120 with a pair of overclocked R9-290's. It is running a massive 20C cooler than the 4770K at 4.4ghz!!!Īs far as performance is concerned there is not a huge difference between the 4770K at 4.4ghz and the stock 4790K in Firestrike. At stock it is actually faster and cooler than my overclocked 4770K at 4.4ghz. The memory controller is much better on the Z97 motherboards allowing me to run this high overclock with my memory at 2400mhz, which I was not able to do with my older Z87 motherboard. I have been able to manually overclock this cpu easily to 4.7Ghz on all 4 cores with 1.3V and the load temps have not exceeded 73C. I ran the cpu at stock for a few hours and was amazed when I found that it was running Prime 95 at 67C with only 1.23V. I received this cpu yesterday and swapped it out after updating the bios on the Asus motherboard. I have a custom water loop and 87C was a little too high for my liking. I bought a new ROG Hero Z97 board for this build and until last week I was using my 4770K in it 4.4ghz with 1.3v and a load temp of 87C (prime 95). I must confess that I am pleasantly surprised. I decided to buy the 4790K to see what the new TIM and packaging brought to the table. However I am an early adopter and building computers is a hobby of mine. Overall Review: To be honest there was nothing wrong with my 3770K or 4770K. Overclocks well enough considering stock clocks
New TIM and packaging for this refreshed Haswell
G.SKILL Trident X Series 16GB (2 x 8GB) DDR3 2400 Memory (x2 for 32GB)ĮVGA 04G-P4-2983-KR GeForce GTX 980 SC ACX 2.0 4GB Video Card Intel Core i7-4790K 4.0GHz LGA 1150 Devil’s Canyon Quad-Core CPUĬorsair Hydro Series H105 Liquid CPU Cooler Overall Review: The awesome-in-a-case build: Its about 30 Celsius idling and around 40 Celsius under load. I have a closed-loop water cooler on it and the temperature is not an issue at idle or under load.
The 4790K PC beats my overclocked system by a clear margin. She isn’t a gamer, so I wanted to make sure I didn’t push the stability. I overclock my i7-4770K not long after I got it over a year ago just for fun. Pros: The K version allows you to overclock the CPU speed, so it tends to appeal to gamers and, naturally, overclocker enthusiasts opposed to business users.