GPU comparison · 1080p benchmark
RTX 4090 24GB records 123.4% more FPS than RTX 3080 10GB in GPUsed's continuous 1080p benchmark (621 vs 278 FPS). Choose another pair in the full comparison tool if you want to explore a different upgrade.
RTX 4090 24GB recorded 621 FPS against 278 FPS for RTX 3080 10GB. These are continuous 1080p benchmark averages, not predicted FPS in any particular game.
RTX 3080 10GB
278Benchmark FPS at 1080p- Our rating
- 69.6 / 100
- Graphics memory
- 10GB
- Released
- September 2020
- GPUsed cards tested
- 209
RTX 4090 24GB
621Benchmark FPS at 1080p- Our rating
- 92.2 / 100
- Graphics memory
- 24GB
- Released
- October 2022
- GPUsed cards tested
- 127
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What does this comparison mean?
The RTX 4090 increases capacity from the RTX 3080 10GB's 10GB to 24GB and has a much higher recorded average. The size of that change makes the complete build relevant: inspect the exact 4090's dimensions, connections and power requirements. The continuous GPU result cannot tell whether the current case or power supply is suitable.
RTX 3080 10GB has 10GB and RTX 4090 24GB has 24GB of graphics memory. Memory capacity, board dimensions, power connectors and the price of a particular used card are separate from this benchmark. Compare the exact item before deciding whether to upgrade.
The two GPUs in context
RTX 3080 10GB
This RTX 3080 is the original Ampere configuration with 10GB of GDDR6X, launched in September 2020, rather than the later 12GB model.
RTX 4090 24GB
The RTX 4090 launched in October 2022 with Ada Lovelace architecture and 24GB of GDDR6X.
Release and feature sources: RTX 3080 10GB source · RTX 4090 24GB source.
How the figures are compared
Both FPS figures come from the owner-supplied GPUsed benchmark dataset. GPUsed reports a continuous FurMark run at 1080p for its physical-card checks. The percentage compares the higher model average with the lower one using the original FPS values. Our rating uses a compressed scale, with the fastest GPU at 100; it is separate from the percentage difference. A benchmark result does not predict gaming FPS.
GPUsed reports its physical-card checks typically last 30 to 60 minutes while temperature and stability are checked. The owner supplied the model-level FPS workbook on 2 October 2026; this benchmark dataset was last reconciled 3 October 2026. Historical cards tested are separate from the number of FPS runs behind a model average. Full benchmark method.