I5 6500 vs I5 8400

[Karlo Mehmetovic]

I have a really good bottleneck in games like GTA V and BF1 cuz I have GTX 1070 with I5 6500,playing on ultra and it's very hard to get stable 60 FPS while I watched a couple of videos on youtube pairing GTX 1070 with i5 8400 and the FPS changes a lot so I'm wondering if that is the truth.

 

[DRagor]

There is a hell of difference between 6500 and 8400. First, 50% more cores, which helps a lot in games that use CPU much (like BF1). Second, while base speed is similar, Turbo speed is much higher on 8400, especially when only one or two cores are used - which helps games that use only 1-2 cores and want them very fast. So yes, 8400 should give you much higher FPS when paired with 1070 over your 6500. Of course, the only problem with such upgrade is that you would need new motherboard as well.

 

[The Paladin]

You have a GTX 1070 running on a I5-6500, is your monitor 60Hz or 144Hz? 4K resolution or 1080p?
your 60 FPS could be because of the amount of ram you have on your motherboard, 8 GB will perform less than 16 GB systems.
your comparing yourself to a YouTube video, your CPU is a 4/8 cores/threads, the i5-8400 is a 6/6 core/threads. so its performance may be better than yours yes.
but not only because of CPU but because the motherboard has more pcie lanes then previous generations (i.e. a z370 have 24 pcie lanes, z170 only have 16) which makes the video processing and ssd drives work better and faster then the previous generations.

 

[Karlo Mehmetovic]

I'm gaming on 75hz ultrawide monitor 2560x1080 and I have 2133mhz 8 gigs of ram.
Ok so it's worth upgradeing but will there be any difference in FPS if I upgrade my ram to 16gb 3200mhz.
IDK if will ram help me with this but when I'm playing a game and in that moment I want to open the google it takes a really long time to open youtube or facebook or a regular website.
When I'm writeing the text doesn't come instantly and It takes like 4-5 seconds just to show the one letter I typed so I'm wondering if ram will help me with that problem.

 

[Evvvvv]

You have a GTX 1070 running on a I5-6500, is your monitor 60Hz or 144Hz? 4K resolution or 1080p?
your 60 FPS could be because of the amount of ram you have on your motherboard, 8 GB will perform less than 16 GB systems.
your comparing yourself to a YouTube video, your CPU is a 4/8 cores/threads, the i5-8400 is a 6/6 core/threads. so its performance may be better than yours yes.
but not only because of CPU but because the motherboard has more pcie lanes then previous generations (i.e. a z370 have 24 pcie lanes, z170 only have 16) which makes the video processing and ssd drives work better and faster then the previous generations.

Sorry mate but i5 6500 is 4 cores 4 threads. I know its a small mistake but just to make you aware of it.

 

[spdragoo]

I have a really good bottleneck in games like GTA V and BF1 cuz I have GTX 1070 with I5 6500,playing on ultra and it's very hard to get stable 60 FPS while I watched a couple of videos on youtube pairing GTX 1070 with i5 8400 and the FPS changes a lot so I'm wondering if that is the truth.

Not sure that the bottleneck is truly due to the CPU. Before taking any YouTube videos at their word, always check against real-world benchmarks -- after all, YouTube has the videos showing a guy pulling a real orange out of the screen of his iPad, which is impossible to do in real life.

In BF1 (link), the 4C/4T i5-6600K's performance was right in line with the faster 4C/8T i7-6700K. Your i5-6500 might be a little bit slower (3.3GHz Turbo with 4C on the 6500; 3.8GHz Turbo with 5 or 6 cores, 3.9GHz with 4 cores on i5-8400), but I don't think the i5-8400's extra cores are really going to help you here. And you'd have to buy a brand-new motherboard to go with the new CPU as well.

GTA V (link) is even more telling, as not only did the 4C/4T i5-4690K pretty much match the 4C/8T i7-4770K, it also matched the slightly faster 6C/12T i7-4960X.

Graphics-wise, you should be OK as well. GTA V's CPU testing used the Maxwell version of the Titan X & BF1's CPU testing used the R9 Fury X; both of those GPUs are on par with your GTX 1070, & BF1 was even specifically tested with the 1070, so as long as you're playing at 1440p or lower resolutions stable 60FPS shouldn't be a problem.

What you may want to chec;

• 
  ■ make sure super-scaling isn't turned on. If your GTX 1070 is trying to render everything at 4K then downscale it to 1440p or 1080p, you're going to have trouble getting a stable 60 FPS.
  ■ Make sure your temperatures aren't affecting your CPU/GPU performance. If the CPU isn't getting sufficient cooling, at best you just won't get its Turbo speeds, or worse it'll throttle down. But if the i5-6500 is having trouble running cool, I don't think the i5-8400 will do any better. And if it's the GPU that's running hot, then a new CPU will do nothing. If you're running hot, you might need to add more case fans, check the airflow to the case (i.e. don't put it on top of a heater vent, don't stick it inside an enclosed space, etc.), & maybe even consider getting a $30-50 aftermarket cooler.
  ■ Since getting the i5-8400 would require a brand-new motherboard, check to see if there's a better CPU that will work with your existing motherboard. If it can handle a Kaby Lake CPU, you can always get an i5-7600 (faster than your 6500/matches the 8400 in speed) or even an i7-7700 (faster & has more cores). If it's a board with overclocking capabilities, you could also consider switching out for an unlocked CPU -- i5-7600K (or even 6600K) or i7-7700K.