Does the Core i7-4790 bottleneck the RX 570?
No. The Core i7-4790 does not bottleneck the RX 570. These are two well-matched budget parts from the same era: the graphics card is the limiter at 1080p and the four-core, eight-thread i7 keeps it fed. It's a classic value 1080p pairing.
Complete the build
The other parts a Core i7-4790 + RX 570 build needs.
This is a proper old-school budget question. The Core i7-4790 is a 2014 Haswell chip with four cores and eight threads, and the RX 570 is a 2017 Polaris card built for 1080p gaming. Despite the age gap, they line up well. The i7 was a strong CPU in its day and still has enough to drive this card.
The short answer is that the RX 570 is your limiter, not the 4790. In the 1080p games this card was made for, the graphics card is the part working hardest, and the eight-thread i7 feeds it without falling behind in most titles.
It's a sensible way to keep an older LGA1150 machine gaming on a tight budget. Just set your expectations to 1080p and this era of hardware, and the pairing holds up.
Core i7-4790 + RX 570: bottleneck by resolution
| Resolution | Verdict | Bottleneck | Est. FPS (AAA) | Held back by |
|---|---|---|---|---|
| 1080p | GPU-limited | , | ~45 FPS | The RX 570 |
| 1440p | GPU-limited | , | ~31 FPS | The RX 570 |
| 4K | GPU-limited | , | ~19 FPS | The RX 570 |
Based on real 1080p performance data (Hardware Unboxed / TechSpot / TechPowerUp / Tom's), scaled by resolution. Use the bottleneck calculator for your exact settings.
How the Core i7-4790 and RX 570 pair up
At 1080p. The resolution this card lives at. The RX 570 is the limiter in most games. The i7-4790's four cores and eight threads keep it supplied, and in the esports and older AAA titles that suit a 570, the card runs out of headroom before the CPU does. For its class, this is a balanced match.
Where you'll feel the age is in a handful of newer, heavily threaded games that expect six or more cores. There the 4790 can become the busy part, but that's the game outrunning both components, not the i7 specifically bottlenecking the 570. The card would be maxed anyway.
1440p is a stretch for the RX 570 in modern titles, and any struggle there is the graphics card, not the CPU. The 4790 doesn't get any busier when you raise the resolution; the 570 just has less headroom to give.
Game type matters. Older and lighter competitive games. The natural home for this pairing. Run well, with the 570 setting the pace. The newest AAA releases push both parts hard and are best treated as beyond this era of hardware rather than a bottleneck of one component over the other.
Core i7-4790 + RX 570 FPS in popular games
| Game | 1080p | 1440p |
|---|---|---|
| Cyberpunk 2077 (Ultra) | ~32 FPS | ~23 FPS |
| Counter-Strike 2 | ~99 FPS | ~71 FPS |
| Fortnite (Epic) | ~59 FPS | ~42 FPS |
| Call of Duty: Warzone | ~47 FPS | ~34 FPS |
| Hogwarts Legacy (Ultra) | ~36 FPS | ~26 FPS |
| Baldur's Gate 3 (Ultra) | ~41 FPS | ~30 FPS |
| Starfield | ~27 FPS | ~19 FPS |
Estimated averages at High/Ultra, no upscaling. DLSS/FSR push these higher. Competitive titles run well above these figures.
What to do about it
There's nothing to fix for what this hardware is. Build or keep it with confidence for 1080p and older or lighter games. The i7-4790 will not hold back the RX 570 in the titles this card suits, and it's a fine way to keep a Haswell machine useful on a budget.
The honest caveat is the platform itself. LGA1150 is a dead end. There's no meaningful CPU upgrade left in it, and DDR3 limits you. If you want to play current AAA games smoothly, the right move isn't a new CPU for this board but a whole new platform down the line. For now, a cheap used RX 580 8GB is the single best value upgrade to pair with this i7.
Some links on this page are affiliate links. If you buy through them we may earn a small commission, at no extra cost to you. As an Amazon Associate we earn from qualifying purchases. It never changes what we recommend.
Core i7-4790 + RX 570: your questions answered
Not in the games this card suits. At 1080p the RX 570 is the limiter in most older and lighter titles, and the i7-4790's eight threads keep it fed. It's a balanced budget pairing for its era.
Acceptable in older and esports games, where the pairing is happiest. In newer, heavily threaded titles the four-core 4790 can cause frame-time dips, but those games push the RX 570 to its limit anyway. 16GB of RAM and an SSD help the lows most.
Yes, for what this card does. At 1080p in older and lighter games the i7-4790 keeps the RX 570 fed and the card is the limiter. Only the newest multi-core-hungry games expose the CPU's age.
For a budget 1080p build from this era, it's a solid match. The i7 was a capable gaming chip and the RX 570 a strong value card. Together they still handle older and esports titles well.
Neither in isolation gets you far. The LGA1150 platform is the real limit. If you want cheap gains now, a used RX 580 8GB pairs well with the 4790. For modern AAA gaming, plan a full platform change instead.
Lighter and older titles, yes, at 1080p with sensible settings. The newest AAA games are a struggle, but that's the age of both parts combined, not the CPU bottlenecking the card. Set expectations to esports and last-gen titles.
Barely different for this card. The 4790K is unlocked and clocks a little higher, but paired with an RX 570 the gap is negligible. Both keep the card fed at 1080p in the games it suits.
16GB of DDR3 is the target and makes a real difference to smoothness in newer games; 8GB is tight today. Add an SSD if the system still runs on a hard drive. It helps frame pacing and load times more than you'd expect.
A quality 450W to 500W unit is enough. The RX 570 can draw around 150W and the 84W i7-4790 is modest, so a good 500W supply gives comfortable headroom. Avoid the cheapest no-name units with this older card.