GPU COMPARISON · 2026 BUYING GUIDE
RTX 4080 Super vs RTX 5080
Choose the RTX 5080 for a new flagship-class build. Keep or buy a heavily discounted RTX 4080 Super when value and efficiency matter more than the newest features.
GPUStores analysis · Updated September 16, 2026. Advice based on specifications and cited sources; we do not claim GPUStores laboratory testing.
Quick comparison
| Criterion | RTX 4080 Super | RTX 5080 |
|---|---|---|
| Memory | 16 GB GDDR6X | 16 GB GDDR7 |
| Graphics power | 320 W | 360 W |
| Target | Established high-end 4K | Current premium 4K |
| Strength | Excellent efficiency and possible discounts | Higher performance and newer features |
| Watch for | Older generation and seller condition | No increase in VRAM capacity |
Power figures are reference specifications; partner cards can vary.
What two independent tests show
These are the cited publications’ results, not GPUStores measurements. They describe the games, drivers and settings tested at publication, not promised frame rates for your PC.
TechSpot · 17 games 2025-01-29
RTX 4080 Super = 100
Tom’s Hardware · Ultra 2025-01-29
RTX 4080 Super = 100
GPUStores chart redrawn from rounded published differences. These historical averages do not predict individual games or results with frame generation.
TechSpot
In its 17-game average, the RTX 5080 was 4% faster than the 4080 Super at 1440p and 11% faster at 4K.
Tom’s Hardware
Its 16-game rasterization suite found gains of 7% at 1440p Ultra and 9% at 4K Ultra, without Multi Frame Generation.
The test methods differ, so we do not merge their averages. Match the games and settings to your own use, then compare actual delivered Canadian prices.
Which offers better value?
The 5080 is faster, but both have 16 GB. A large price gap makes the 4080 Super more attractive; a small gap favours the newer card.
Choose for your actual workload
If your 4080 Super already runs your games well, the small native-rendering gains shown above are a weak reason to replace it. Keep your money until a specific game or task needs more.
Tradeoff to accept: Older generation and seller condition.
For a new purchase, weigh the 5080’s extra performance and supported features against its delivered price. Both cards have 16GB, so this upgrade does not add memory capacity.
Tradeoff to accept: No increase in VRAM capacity.
What the specification table does not tell you
At 1080p, the CPU can narrow the gap between two GPUs. At 1440p and especially 4K, graphics load rises. Compare tests using your resolution, settings and similar games.
More memory helps when the workload exceeds available capacity. Architecture, bus and compute resources also determine performance: more VRAM is not automatically faster.
DLSS, FSR and frame generation can improve smoothness, but do not replace a strong base frame rate. Check image quality, latency and support in your games.
Two cards using the same GPU can differ in length, thickness, noise, connector and warranty. The exact model matters more than a tiny factory overclock.
The GPU name does not tell you which card fits your PC
These are specific examples from the catalogue. Match the model number on the listing: two cards with the same GPU can have different coolers and dimensions.
ASUS Prime GeForce RTX 5080 16GB OC
PRIME-RTX5080-O16G
- Published dimensions
- 304 × 126 × 50 mm
- Connector
- 1 × 16-pin
Manufacturer images already used in our catalogue, not GPUStores test photos. Images are not to scale. Review results cited elsewhere are not measurements of these partner models.
Is it a worthwhile upgrade?
A 4080 Super owner should upgrade only for a measured performance need, not for additional VRAM.
Total cost before upgrading
If the change also requires a PSU, case or display, add those costs before comparing value. The best GPU on paper can become the weaker purchase for your system.
Questions before buying
Check today’s delivered price
Compare the exact model, dimensions, PSU needs, warranty and return policy before ordering.
