CPU_VS_GPU / 2026-09-11
AMD Ryzen 3 8300GvsNVIDIA RTX 4080 SUPER
Complete bottleneck analysis at 1080p, 1440p, Ultrawide (UWQHD/SUWQHD), and 4K with estimated FPS for popular games.
28%
ESTIMATED CPU BOTTLENECK
Your CPU (Ryzen 3 8300G) partially limits the RTX 4080 SUPER at 2560x1440. In CPU-heavy scenes you will lose frames. Consider a CPU upgrade or a higher target resolution.
Load estimated by the model, not measured on your PC.
- PROCESSORAMD Ryzen 3 8300G
- GRAPHICSNVIDIA RTX 4080 SUPER
- MEMORY16GB DDR4/DDR5
- RESOLUTION2560x1440
Average across the demanding titles at 2560x1440.
Average across the competitive titles, where the processor leads.
What the build draws (535 W) plus headroom.
DEEP-DIVE ANALYSIS
GENERATED BY THE ENGINEThe AMD Ryzen 3 8300G and the NVIDIA RTX 4080 SUPER each bring their own character. Below you'll see whether the union is balanced or whether one component wastes the other, with estimated FPS, power draw and recommendations tailored to this specific pair.
Bottom line: this pair carries 4K
At 1080p the Ryzen 3 8300G becomes the limiting part (~44% CPU bottleneck), whereas at 4K the two stay well balanced. One number decides the purchase: 4K is the most demanding of the standard 16:9 sizes that still sustains 63 FPS on average in AAA games, above the 60 FPS bar we treat as smooth. Step up a rung and the frame rate drops below that mark.
As you climb from 1080p to 4K, the load shifts from the processor toward the graphics card: every extra pixel lands on the RTX 4080 SUPER. Here, efficiency moves from 56% at 1080p to 96% at 4K — which shows the part the frame rate depends on at each end.
In esports titles like Valorant this pair flies — around 413 FPS at 1080p, plenty for a high-refresh monitor. At the other end, a demanding AAA like Alan Wake 2 drops to ~41 FPS at 4K, which is where the RTX 4080 SUPER's ceiling really shows. Overall, expect about 90 FPS average in AAA games at 1080p and around 63 FPS at 4K.
[CPU] Ryzen 3 8300G
The Ryzen 3 8300G scores 58/100 on this model's gaming scale, with 4 cores and 8 threads. In this pairing its job is to serve frames fast enough to never leave the graphics card waiting.
[GPU] RTX 4080 SUPER
The RTX 4080 SUPER (69/100 on the model's gaming scale) supplies the raster muscle of the build. Its 16 GB of GDDR6X set how far it can go on resolution and texture quality before video memory runs short.
Beyond the FPS: Both parts come from nearby generations, which usually means a natural pairing with no platform surprises. You're combining an AMD platform with an NVIDIA GPU — a perfectly valid mix that imposes no penalty.
WHAT TO CHANGE, AND WHAT IT COSTS
At 1440p the Ryzen 3 8300G sets the frame rate and leaves part of the RTX 4080 SUPER idle. The cheapest processor in our catalogue that keeps the card fully fed and clears our bar (at least 10% more frames) is the Intel Core i7-12700F: about 37% more in this model, with this card and 16 GB. It uses a different socket (LGA1700 instead of AM5), 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] AMD Ryzen 3 8300G
- Cores4C / 8T
- Clock3.4 – 4.9 GHz
- TDP65 W
- SocketAM5
- Single-thread3,770
- Multi-thread13,990
- L3 cache8 MB
[GPU] NVIDIA RTX 4080 SUPER
- VRAM16 GB GDDR6X
- Memory bus256-bit
- TDP320 W
- G3D Mark39,115
- Memory bandwidth736.3 GB/s
BOTTLENECK BY RESOLUTION
SYNERGY · AVERAGE FPSYour CPU (Ryzen 3 8300G) cannot feed the RTX 4080 SUPER 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 (Ryzen 3 8300G) partially limits the RTX 4080 SUPER at 2560x1440. In CPU-heavy scenes you will lose frames. Consider a CPU upgrade or a higher target resolution.
Your CPU (Ryzen 3 8300G) partially limits the RTX 4080 SUPER at 3440x1440 (Ultrawide 21:9). In CPU-heavy scenes you will lose frames. Consider a CPU upgrade or a higher target resolution.
Your CPU (Ryzen 3 8300G) and GPU (RTX 4080 SUPER) are an exceptionally balanced match for gaming at 5120x1440 (Super Ultrawide 32:9). No realistic component swap would meaningfully improve this build.
Your CPU (Ryzen 3 8300G) and GPU (RTX 4080 SUPER) are an exceptionally balanced match for gaming at 4K. No realistic component swap would meaningfully improve this build.
ESTIMATED FPS BY GAME
1920x1080SYSTEM DIAGNOSTICS
POWER · VRAM & PCIe · RAMPOWER ESTIMATION
The Ryzen 3 8300G (65W) and RTX 4080 SUPER (320W) add up to roughly 385W under load. Adding 150W for the rest of the system gives 535W, and with a 30% transient margin, 700W is the safe figure.
VIDEO MEMORY AND PCIe
The RTX 4080 SUPER's memory bus (256-bit) and bandwidth (736.3 GB/s) describe its own video memory, meaning how fast the card reads its 16 GB of GDDR6X, 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 4K, 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. 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 AMD Ryzen 3 8300G bottleneck the NVIDIA RTX 4080 SUPER?
At 1080p the Ryzen 3 8300G becomes the limiting part (~44% CPU bottleneck), whereas at 4K the two stay well balanced. Overall, there is some mismatch depending on resolution, with 76% average efficiency across the 12 resolutions our model tests. The resolution we would target with this pair is 4K, where AAA games average 63 FPS.
How many FPS do the Ryzen 3 8300G and RTX 4080 SUPER get at 1080p?
At 1080p this combination averages about 90 FPS in AAA games and around 255 FPS in esports titles. In Valorant we estimate up to 413 FPS.
Is this pairing good for 4K gaming?
Yes. At 4K this pairing averages about 63 FPS in AAA titles, at or above the 60 FPS we treat as smooth.
What power supply do I need for the Ryzen 3 8300G and RTX 4080 SUPER?
With an estimated combined draw of 385W across CPU and GPU, we recommend at least a 700W 80+ Gold supply (ideally ATX 3.0) to run with headroom.
Is the RTX 4080 SUPER's 16 GB of VRAM enough?
In the model, 16 GB covers all 11 games it tracks even at 4K with high textures, so video memory is not the constraint for this pairing.