Nvidia GeForce RTX 5080 vs Nvidia GeForce RTX 3090

Updated Jun 2026 · Scored by the Let’s Compare Data Engine · How we score

Verdict

Key takeaways

  • Nvidia GeForce RTX 5080 leads Nvidia GeForce RTX 3090 overall by 14 points (78 vs 64 out of 100).
  • Key differences: G3D mark, where Nvidia GeForce RTX 5080 has 35,656 vs 26,564; performance (FP32), where Nvidia GeForce RTX 5080 has 56.28 vs 35.6 TFLOPS; capacity, where Nvidia GeForce RTX 3090 has 24 GB vs 16 GB; performance (FP16), where Nvidia GeForce RTX 5080 has 56.28 vs 35.581 TFLOPS; lithography process, where Nvidia GeForce RTX 5080 has 5 vs 8 nm.
Nvidia GeForce RTX 5080 leads overall
Nvidia GeForce RTX 5080 · #3 of 157
78
Nvidia GeForce RTX 3090 · #16 of 157
64
Key differences
  • G3D MarkNvidia GeForce RTX 5080 35,656 vs 26,564
  • PerformanceNvidia GeForce RTX 5080 56.28 vs 35.6 TFLOPS
  • CapacityNvidia GeForce RTX 3090 24 GB vs 16 GB
  • PerformanceNvidia GeForce RTX 5080 56.28 vs 35.581 TFLOPS
  • Lithography ProcessNvidia GeForce RTX 5080 5 vs 8 nm

Scores by Category

GeForce RTX 5080 wins 3 of 6 categories

CategoryGeForce RTX 5080GeForce RTX 3090Lead
Benchmark
+19
Theoretical Performance
+20
Memory
Tie
Miscellaneous
Tie
Core Specifications
+18
API Support
Tie

Value for Money

Launch prices — enter today's prices (same currency for both).

Detailed Specifications

Core Specifications

Feature
GeForce RTX 5080
GeForce RTX 3090
Maximum Power
360 W
350 W3% less
Lithography Process
5 nm38% less
8 nm

Memory

Feature
GeForce RTX 5080
GeForce RTX 3090
Capacity
16 GB
24 GB50% more
Technology
Bandwidth
960 GB/s3% more
936.2 GB/s

API Support

Feature
GeForce RTX 5080
GeForce RTX 3090
DirectX Version
12
12
Vulkan Version
1.4
1.4

Theoretical Performance

Feature
GeForce RTX 5080
GeForce RTX 3090
Performance (FP16)
56.28 TFLOPS58% more
35.581 TFLOPS
Performance (FP32)
56.28 TFLOPS58% more
35.6 TFLOPS

Benchmark

Feature
GeForce RTX 5080
GeForce RTX 3090
G3D Mark
35,65634% more
26,564

Miscellaneous

Feature
GeForce RTX 5080
GeForce RTX 3090
Platform

Specification Note

Specifications are compiled from official manufacturer data and other reliable internet sources. Some features may vary by region or model configuration.

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