About this guide: This article compares published manufacturer specifications and explains how to assess benchmark evidence. We have not measured these cards in a test system for this article. It provides no original frame-rate, noise, temperature or power-efficiency results.
RTX 5080 and RTX 4080 SUPER use different architectures but both have 16GB of memory. This guide does not establish a fixed native-performance gap or claim that the cards are nearly identical.
Published specifications
| GPU | Architecture | CUDA cores | Memory / bus | TGP |
|---|---|---|---|---|
| RTX 5080 | Blackwell | 10,752 | 16GB GDDR7 / 256-bit | 360W |
| RTX 4080 SUPER | Ada Lovelace | 10,240 | 16GB GDDR6X / 256-bit | 320W |
Sources: NVIDIA RTX 5080 specifications and NVIDIA RTX 4080 family specifications.
Read the comparison target and settings
NVIDIA’s RTX 5080 product-page performance chart compares the RTX 5080 with the RTX 4080, not the RTX 4080 SUPER. Its stated settings include upscaling, Frame Generation on the 40 Series and Multi Frame Generation on the 50 Series. That chart cannot establish a native-rendering percentage advantage over the RTX 4080 SUPER.
Compare DLSS features, not just version numbers
DLSS is a suite of features. NVIDIA supports DLSS Frame Generation on RTX 40 and 50 Series, and Multi Frame Generation on RTX 50 Series. Super Resolution has broader RTX support. Therefore an RTX 4080 SUPER is not excluded from every feature introduced under DLSS 4, and lack of NVIDIA DLSS Frame Generation on RTX 3080 Ti does not mean every other frame-generation implementation is unavailable. Check the specific game, driver and feature. See NVIDIA DLSS documentation.
What a useful benchmark must show
- The exact GPU models, CPU, memory, driver and game version.
- Resolution and quality settings, including ray tracing.
- Separate native rendering, upscaling and frame-generation results. Generated displayed frames are not native rendered frames.
- Average FPS, frame-time or low-percentile results, and measured power for the same workload.
Neither matching core counts nor memory bus width proves similar gaming performance. More VRAM describes capacity, not a universal speed advantage. A board power rating is not constant consumption or measured performance per watt.
Before choosing a card
Check application compatibility and benchmarks for your own games or workloads, then compare the exact offers available to you. Include condition, return policy, warranty, case clearance and the card maker’s power-supply requirements. Used or renewed listings need separate condition checks. This guide does not predict future prices or claim that buying immediately saves money.
Retained retailer references
As an Amazon Associate we earn from qualifying purchases. These existing image/link pairs are unranked references, not verified matches to manufacturer part numbers. Check the exact model, condition, seller and current terms. No prices, availability or customer scores are asserted here.
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