Does the Ryzen 7 5700X3D Bottleneck the RTX 4070?

Short answer: Only at 1080p. The Ryzen 7 5700X3D limits the RTX 4070 by 21% at 1080p, which mostly shows in high-frame-rate games. At 1440p (4% CPU) and 4K (24% GPU) the pair is balanced, so this is a good match for a 1440p monitor.

Best resolution for this pair: 1440p
Bottleneck: 21% CPU at 1080p, 4% CPU at 1440p, 24% GPU at 4K
Average FPS (9 demanding games, High): 124 at 1080p, 92 at 1440p, 54 at 4K
Recommended power supply: 600 W or more

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Ryzen 7 5700X3D + RTX 4070 bottleneck at 1080p, 1440p and 4K

Resolution	Bottleneck	Limiting part	What it means
1080p	21%	CPU (moderate)	The CPU often holds the card back. Free fixes help; a CPU upgrade helps more.
1440p	4%	CPU (balanced)	Balanced. Both parts are well used.
4K	24%	GPU (moderate)	The graphics card is fully used. This is the normal, healthy kind of limit.

From our bottleneck calculator with its default settings: Battle Royale game type, 16 GB RAM, High detail, typical background load. How we calculate.

Check this pair with your own settings

Ryzen 7 5700X3D + RTX 4070: bottleneck by type of game

The same pair can be balanced in one game and CPU-bound in another, because some games lean much harder on the processor. For this build the CPU is felt most in strategy and simulation games, at 42% at 1080p.

Game type	1080p	1440p	4K
Esports (CS2, Valorant)	38% CPU	28% CPU	3% CPU
Battle royale (Fortnite, Warzone)	21% CPU	4% CPU	24% GPU
Open world (Cyberpunk, RDR2)	2% CPU	17% GPU	36% GPU
Strategy and simulation (Flight Sim, Cities)	42% CPU	34% CPU	13% CPU
Racing (Forza, F1)	13% CPU	8% GPU	31% GPU

Bottleneck from our calculator for each game type, 16 GB RAM, High detail.

Ryzen 7 5700X3D + RTX 4070 FPS in popular games

Estimated average FPS and 1% lows on the High preset, native resolution, no ray tracing, with 16 GB of RAM. Across nine demanding games the RTX 4070 with the Ryzen 7 5700X3D averages about 124 FPS at 1080p, 92 FPS at 1440p and 54 FPS at 4K. At 1440p the processor sets the limit in Baldur's Gate 3.

Game	1080p High	1440p High	4K High
Counter-Strike 2	419 (302 low)	299 (233 low)	175 (136 low)
Valorant	516 (371 low)	408 (318 low)	238 (186 low)
Fortnite	178 (139 low)	127 (99 low)	74 (58 low)
Call of Duty: Black Ops 7	124 (97 low)	89 (69 low)	52 (40 low)
Battlefield 6	140 (101 low)	100 (78 low)	58 (45 low)
ARC Raiders	152 (110 low)	109 (85 low)	64 (50 low)
Marvel Rivals	108 (84 low)	77 (60 low)	45 (35 low)
Cyberpunk 2077	121 (94 low)	86 (67 low)	50 (39 low)
Black Myth: Wukong	83 (64 low)	59 (46 low)	34 (27 low)
Hogwarts Legacy	103 (74 low)	82 (64 low)	48 (37 low)
Baldur's Gate 3	103 (68 low)	103 (74 low)	64 (50 low)
Elden Ring	60 (43 low)	60 (47 low)	50 (39 low)

Estimates from our FPS calculator model, which is calibrated against published review results. Expect real results within about ±12%. Elden Ring is locked to 60 FPS by the game.

Calculate FPS for any game with this pair

Ryzen 7 5700X3D + RTX 4070: specs at a glance

Part	Key specs	Platform	Power
Ryzen 7 5700X3D	8 cores / 16 threads, Zen 3 with 3D V-Cache (2024)	AM4, DDR4	105 W rated, up to about 142 W
RTX 4070	12 GB GDDR6X, Ada Lovelace (2023)	DLSS 4 upscaling and DLSS Frame Generation (2x)	About 200 W board power

Manufacturer specifications. Maximum CPU power is AMD’s package power limit or Intel’s maximum turbo power.

Ryzen 7 5700X3D + RTX 4070: what to expect at each resolution

1080p

At 1080p the CPU bottleneck is 21%, so the RTX 4070 will often run below full load. You will feel it most in fast multiplayer games and in 1% lows (stutter). Expect about 121 FPS in Cyberpunk 2077, 178 FPS in Fortnite and 419 FPS in Counter-Strike 2 on High.

1440p

At 1440p the pair is balanced (4% CPU), so both parts are well used. Expect about 86 FPS in Cyberpunk 2077, 127 FPS in Fortnite and 299 FPS in Counter-Strike 2 on High.

4K

At 4K the RTX 4070 is the limit (24% GPU), which is normal and means you are getting the card’s full speed, unlike at 1080p. Expect about 50 FPS in Cyberpunk 2077, 74 FPS in Fortnite and 175 FPS in Counter-Strike 2 on High.

Ryzen 7 5700X3D + RTX 4070: best upgrade for this build

Upgrade the CPU first. Your Ryzen 7 5700X3D uses the AM4 socket, so you can drop in a faster chip without a new motherboard: Ryzen 7 5800X3D (19% CPU at 1080p, 1% CPU at 1440p). Update the motherboard BIOS before you swap. A faster graphics card would add little until the processor is faster. See the best CPU for the RTX 4070.

Ryzen 7 5700X3D + RTX 4070: power supply for this pair

The Ryzen 7 5700X3D can draw up to about 142 W and the RTX 4070 about 200 W. With 100 W for the rest of the system and 25% headroom, a good 600 W power supply (80 Plus Gold or better) is a safe choice. Use the PSU wattage calculator to include your exact drives, fans and overclocking.

Ryzen 7 5700X3D + RTX 4070: settings tips for this pair

Raise graphics settings and resolution: the GPU has spare power, the CPU does not. Higher settings cost almost no FPS here.
Use native resolution or DLAA / FSR Native AA instead of a Performance upscaling mode, which would only shift more load to the CPU.
Lower CPU-heavy settings: crowd density, object view distance, physics and simulation quality.
Turn on XMP or EXPO so the RAM runs at its rated speed, and use two sticks for dual channel.
Close browsers, launchers and overlays while gaming to free up CPU time.

Ryzen 7 5700X3D + RTX 4070: frequently asked questions

Does the Ryzen 7 5700X3D bottleneck the RTX 4070?

Only at 1080p. The Ryzen 7 5700X3D limits the RTX 4070 by 21% at 1080p, which mostly shows in high-frame-rate games. At 1440p (4% CPU) and 4K (24% GPU) the pair is balanced, so this is a good match for a 1440p monitor.

Is the Ryzen 7 5700X3D good enough for the RTX 4070 at 1440p?

Yes. At 1440p the bottleneck is 4% CPU, which is in the balanced range, so you get close to the card’s full speed.

How many FPS does the Ryzen 7 5700X3D with the RTX 4070 get?

On High settings we estimate about 124 FPS at 1080p and 92 FPS at 1440p on average across nine demanding games, for example 86 FPS in Cyberpunk 2077 at 1440p and 178 FPS in Fortnite at 1080p.

Should I upgrade the CPU or the GPU first?

The CPU. The graphics card already has spare power, so a faster GPU would add little until the processor is faster.

What power supply do I need for the Ryzen 7 5700X3D and RTX 4070?

About 600 W from a good brand with an 80 Plus Gold rating. That covers the CPU (up to about 142 W), the graphics card (about 200 W), the rest of the system and some headroom.

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All CPU and GPU pair results

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Sources: Tom’s Hardware GPU hierarchy, Tom’s Hardware CPU hierarchy, TechSpot CPU and GPU scaling tests, TechPowerUp GPU database, and manufacturer specifications from AMD, Intel and NVIDIA. Bottleneck and FPS figures come from our own bottleneck and FPS models.