CPU_VS_GPU / 2026-09-11
Intel Core i5-9400FvsNVIDIA RTX 5060 Ti 8GB
Complete bottleneck analysis at 1080p, 1440p, Ultrawide (UWQHD/SUWQHD), and 4K with estimated FPS for popular games.
10%
ESTIMATED CPU BOTTLENECK
Your CPU (Core i5-9400F) introduces a slight limitation at 2560x1440. Real-world impact is small and both components work well together.
Below 15% this is a normal imbalance: nothing needs changing to play well.
Load estimated by the model, not measured on your PC.
- PROCESSORIntel Core i5-9400F
- GRAPHICSNVIDIA RTX 5060 Ti 8GB
- MEMORY16GB DDR4/DDR5
- RESOLUTION2560x1440
Average across the demanding titles at 2560x1440.
Average across the competitive titles, where the processor leads.
What the build draws (395 W) plus headroom.
DEEP-DIVE ANALYSIS
GENERATED BY THE ENGINEPairing the Intel Core i5-9400F (46/100 on our gaming index) with the NVIDIA RTX 5060 Ti 8GB (33/100) raises one practical question: do they pull together, or does one hold the other back? We ran this exact combination across all supported resolutions to answer it with numbers rather than guesswork.
Quick take: 1080p is the resolution to target
At 1080p the Core i5-9400F becomes the limiting part (~37% CPU bottleneck), whereas at 4K the RTX 5060 Ti 8GB is the limiting part (~31% GPU bottleneck). Of the common 16:9 sizes, the highest this pair holds above 60 FPS in AAA titles is 1080p, where it averages 63 FPS — that is the resolution worth buying a monitor for. Across every resolution tested, ultrawides included, the system runs at 69% average efficiency.
As you climb from 1080p to 4K, the load shifts from the processor toward the graphics card: every extra pixel lands on the RTX 5060 Ti 8GB. Here, efficiency moves from 63% at 1080p to 69% at 4K — which shows the part the frame rate depends on at each end.
Translated into actual games: In esports titles like Valorant this pair flies — around 275 FPS at 1080p, plenty for a high-refresh monitor. At the other end, a demanding AAA like Alan Wake 2 drops to ~15 FPS at 4K, which is where the RTX 5060 Ti 8GB's ceiling really shows. Overall, expect about 63 FPS average in AAA games at 1080p and around 31 FPS at 4K.
[CPU] Core i5-9400F
On the CPU side: the Core i5-9400F rates 46/100 for gaming in this model and brings 6 cores and 6 threads. At lower resolutions it's the one setting the pace for the whole system.
[GPU] RTX 5060 Ti 8GB
On the graphics side, the RTX 5060 Ti 8GB rates 33/100 for gaming in this model. Its 8 GB of GDDR7 set how far it can go on resolution and texture quality before video memory runs short. The higher the resolution, the more of the frame rate depends on it.
Beyond the FPS: The graphics card is about 6 years newer than the processor, so watch that the Core i5-9400F doesn't fall short in the most CPU-dependent games. You're combining an Intel platform with an NVIDIA GPU — a perfectly valid mix that imposes no penalty.
WHAT TO CHANGE, AND WHAT IT COSTS
At 1440p the Core i5-9400F sets the frame rate and leaves part of the RTX 5060 Ti 8GB idle. The imbalance is small (10%), so this is optional rather than a fix. The cheapest processor in our catalogue that keeps the card fully fed and clears our bar (at least 10% more frames) is the AMD Ryzen 5 5600: about 35% more in this model, with this card and 16 GB. It uses a different socket (AM4 instead of LGA1151), so the cost includes a motherboard.
The gain is the model's estimate at 2560x1440 with 16 GB, not a measurement of your PC, and prices change: check them at the retailer before deciding.
PRICE OF THIS PAGE'S PAIRING
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SPECIFICATIONS
CATALOGUE DATA[CPU] Intel Core i5-9400F
- Cores6C / 6T
- Clock2.9 – 4.1 GHz
- TDP65 W
- SocketLGA1151
- Single-thread2,421
- Multi-thread9,457
- L3 cache9 MB
[GPU] NVIDIA RTX 5060 Ti 8GB
- VRAM8 GB GDDR7
- Memory bus128-bit
- TDP180 W
- G3D Mark22,070
- Memory bandwidth448 GB/s
BOTTLENECK BY RESOLUTION
SYNERGY · AVERAGE FPSYour CPU (Core i5-9400F) cannot feed the RTX 5060 Ti 8GB fast enough at 1920x1080. The GPU sits waiting for frames, causing stutter and noticeable drops. A CPU upgrade is the highest-impact change you can make.
Your CPU (Core i5-9400F) introduces a slight limitation at 2560x1440. Real-world impact is small and both components work well together.
Your CPU (Core i5-9400F) and GPU (RTX 5060 Ti 8GB) are an exceptionally balanced match for gaming at 3440x1440 (Ultrawide 21:9). No realistic component swap would meaningfully improve this build.
Your GPU (RTX 5060 Ti 8GB) is the limiting factor at 5120x1440 (Super Ultrawide 32:9). In graphically demanding titles you will see lower frame rates; a faster GPU would deliver a clear improvement.
Your GPU (RTX 5060 Ti 8GB) severely limits the system at 4K, leaving the Core i5-9400F heavily underused. A faster GPU would improve performance dramatically.
ESTIMATED FPS BY GAME
1920x1080SYSTEM DIAGNOSTICS
POWER · VRAM & PCIe · RAMPOWER ESTIMATION
The Core i5-9400F (65W) and RTX 5060 Ti 8GB (180W) add up to roughly 245W under load. Adding 150W for the rest of the system gives 395W, and with a 30% transient margin, 550W is the safe figure.
VIDEO MEMORY AND PCIe
The RTX 5060 Ti 8GB's memory bus (128-bit) and bandwidth (448 GB/s) describe its own video memory, meaning how fast the card reads its 8 GB of GDDR7, not the PCIe link to the processor. The PCIe link depends on the card, the processor and the motherboard slot together; our catalogue does not record PCIe generation or lane count, so the model does not estimate it. It matters most for cards with an eight-lane interface in older PCIe 3.0 boards: check the card's and the board's specifications.
SYSTEM MEMORY
This page assumes 16 GB in dual channel. At 1080p, the resolution recommended above, that meets the model's capacity target of 16 GB (enough for three in four of the games it covers), so more capacity would add little or nothing there. The target stays at 16 GB even at 4K, so a larger kit is for heavy multitasking or mods, not for these games. Memory speed and a second channel act on the processor's ceiling instead: they matter in the games the CPU limits, by an amount that depends on the game, and the calculator lets you enter your own kit.
HOW THIS PAGE IS CALCULATED
ENGINE v2026.08 · 2026-09-11CALCULATED, NOT WRITTEN
Every figure and every sentence comes from the same deterministic engine, driven by the catalogue specifications. That is what makes it reproducible: with the same engine version (2026.08) and the same catalogue, the same pairing always gives the same result. When either changes, the version and date above change with it, and the changelog says why.
WHERE THE DATA COMES FROM
Specifications come from the official AMD, Intel and NVIDIA datasheets together with PassMark and TechPowerUp. The gaming indices are calibrated against frame rates published by review outlets (TechPowerUp, TechSpot / Hardware Unboxed, Tom's Hardware, Gamers Nexus, Digital Foundry) rather than synthetic scores. That data is compiled, not measured here: this site runs no test bench of its own.
STATED LIMITS
Figures estimate native raster performance at high/ultra quality, with no ray tracing, upscaling or frame generation. We do not yet publish an externally validated error margin — the accuracy page states exactly where that stands.
* Affiliate disclosure: the Amazon links exist to show pricing. As an Amazon Associate we earn from qualifying purchases at no extra cost to you. Recommendation order is decided by the engine and does not depend on commission.
TRY WITH YOUR OWN HARDWARE
Customize RAM, resolution, and discover upgrade recommendations.
FREQUENTLY ASKED QUESTIONS
5Does the Intel Core i5-9400F bottleneck the NVIDIA RTX 5060 Ti 8GB?
At 1080p the Core i5-9400F becomes the limiting part (~37% CPU bottleneck), whereas at 4K the RTX 5060 Ti 8GB is the limiting part (~31% GPU bottleneck). Overall, the GPU is the limit at high resolution, with 69% average efficiency across the 12 resolutions our model tests. The resolution we would target with this pair is 1080p, where AAA games average 63 FPS.
How many FPS do the Core i5-9400F and RTX 5060 Ti 8GB get at 1080p?
At 1080p this combination averages about 63 FPS in AAA games and around 172 FPS in esports titles. In Valorant we estimate up to 275 FPS.
Is this pairing good for 4K gaming?
Playable rather than smooth: about 31 FPS on average in AAA titles at 4K, with the RTX 5060 Ti 8GB setting the limit. Upscaling (DLSS, FSR or XeSS) or lower settings are the usual way to reach 60 FPS.
What power supply do I need for the Core i5-9400F and RTX 5060 Ti 8GB?
With an estimated combined draw of 245W across CPU and GPU, we recommend at least a 550W 80+ Gold supply (ideally ATX 3.0) to run with headroom.
Is the RTX 5060 Ti 8GB's 8 GB of VRAM enough?
8 GB falls short at 1440p for 3 of the 11 games the model tracks, and for 6 at 4K. In those titles expect to lower texture settings, or to see frame-time spikes if you do not.