
RTX 3080
Ampere · 10 GB GDDR6X
NVIDIA GeForce VS NVIDIA GeForce GPU COMPARISON
Compare RightNow GPU Database specifications and median 3DMark Time Spy Graphics scores. The quick answer below is intentionally separated from game-specific FPS and live pricing.

Ampere · 10 GB GDDR6X

Ampere · 24 GB GDDR6X
QUICK ANSWER
RTX 3090 has a median Graphics score of 19,889 versus 17,664 for RTX 3080, a lead of about 13% in this synthetic workload.
3DMARK TIME SPY
Median Graphics scores across submitted 3DMark Time Spy results; higher is better.
Time Spy is a synthetic DirectX 12 workload, not an FPS guarantee. Submitted results can include different board models, drivers, cooling, overclocks, and laptop power limits. Models are desktop GPUs unless explicitly labeled Laptop.
SPECIFICATIONS
Reference specifications from the RightNow GPU Database, whose upstream records come from TechPowerUp.
| Specification | RTX 3080 | RTX 3090 |
|---|---|---|
| Architecture | Ampere | Ampere |
| GPU codename | GA102 | GA102 |
| Foundry | Samsung | Samsung |
| Process size | 8 nm | 8 nm |
| Shader units | 8,704 | 10,496 |
| Base clock | 1,440 MHz | 1,395 MHz |
| Boost clock | 1,710 MHz | 1,695 MHz |
| Memory | 10 GB GDDR6X | 24 GB GDDR6X |
| Memory bus | 320-bit | 384-bit |
| Memory bandwidth | 760.3 GB/s | 936.2 GB/s |
| TMUs | 272 | 328 |
| ROPs | 96 | 112 |
| Tensor cores | 272 | 328 |
| Ray tracing cores | 68 | 82 |
| L2 cache | 5 MB | 6 MB |
| TDP | 320 W | 350 W |
| Recommended system power | 700 W | 750 W |
| PCI Express | PCIe 4.0 x16 | PCIe 4.0 x16 |
| Power connectors | 1x 12-pin | 1x 12-pin |
| Display outputs | 1x HDMI 2.1, 3x DisplayPort 1.4a | 1x HDMI 2.1, 3x DisplayPort 1.4a |
| DirectX | 12.2 | 12.2 |
| Vulkan | 1.4 | 1.4 |
| OpenGL | 4.6 | 4.6 |
| FP32 performance | 29.77 TFLOPS | 35.58 TFLOPS |
RTX 3080: RightNow GPU Database · upstream record · retrieved Aug 20, 2026
RTX 3090: RightNow GPU Database · upstream record · retrieved Aug 20, 2026
HOW TO CHOOSE
A useful choice depends on performance, memory, power, price, and the games or workloads you actually use.
RTX 3090 has a median Graphics score of 19,889 versus 17,664 for RTX 3080, a lead of about 13% in this synthetic workload. Treat a result within roughly three percent as effectively close in this synthetic workload.
RTX 3080 lists 10 GB GDDR6X and 320 W graphics power; RTX 3090 lists 24 GB GDDR6X and 350 W. Board-partner models can use different coolers, limits, and connectors.
This comparison does not invent FPS or value claims. Check independent testing for your games and resolution, then compare the current prices of the exact cards available to you.