Nvidia RTX 4080 Super vs Nvidia RTX 3070Which Should You Buy in 2026?
The Nvidia RTX 4080 Super and Nvidia RTX 3070 are both Nvidia Ada Lovelace and Ampere graphics cards competing at adjacent generations. The Nvidia RTX 4080 Super targets 4K high / ultra gaming with 16 GB GDDR6X and 10,240 CUDA cores. The Nvidia RTX 3070 is designed for 1440p with 8 GB GDDR6. Both support Nvidia DLSS but at different versions — Nvidia RTX 4080 Super uses DLSS 3 while Nvidia RTX 3070 has DLSS 2. This matters: newer DLSS iterations use improved neural network models and may add Frame Generation support. The 8 GB VRAM gap is significant — higher VRAM is increasingly important as games scale up texture budgets at 1440p and 4K. This 2026 guide gives you a clear answer on which is worth the money for your resolution and workload.
Option A
Nvidia RTX 4080 Super
Ada Lovelace · 16GB GDDR6X
4K gaming with high frame rates and strong ray tracing
Option B
Nvidia RTX 3070
Ampere · 8GB GDDR6
1440p gaming — efficient and capable, VRAM limit beginning to show
| Architecture | Ada Lovelace | Ampere |
| Compute Units | 10,240 CUDA cores | 5,888 CUDA cores |
| VRAM | 16GB GDDR6X | 8GB GDDR6 |
| Memory Bandwidth | 736 GB/s | 448 GB/s |
| TDP | 320 W | 220 W |
| DLSS | ✓ DLSS 3 | ✓ DLSS 2 |
| FSR | ✓ FSR FSR 3 | ✓ FSR FSR 3 |
| Ray Tracing | ✓ Yes | ✓ Yes |
| Target Res. | 4K high / ultra | 1440p |
| Recommended PSU | 850W | 700W |
| Release Year | 2024 | 2020 |
What actually makes them different
Nvidia RTX 4080 Super has 8GB more VRAM (16GB vs 8GB). This matters at higher resolutions and with modern AAA titles that use large texture packs — VRAM saturation causes stuttering and frame time spikes that raw performance numbers don't show.
Nvidia RTX 4080 Super has 288GB/s more memory bandwidth (736GB/s vs 448GB/s), which benefits high-resolution rendering where large textures need to be fetched rapidly.
Nvidia RTX 3070 draws 100W less power (220W vs 320W), making it more practical for smaller cases, quieter cooling solutions, and builds with a lower-wattage PSU.
Nvidia RTX 4080 Super is built on Ada Lovelace while Nvidia RTX 3070 uses Ampere. Newer architectures generally offer better power efficiency, improved ray tracing performance, and access to newer API features.
Want to see which GPU bottlenecks with your CPU? Read our GPU bottleneck guide or use the FPS Calculator on TechBenchPro to estimate frame rates for your full build.
Which one should you buy?
The straightforward answer — no specs required.
Buy RTX 4080 Super if…
- You game at 1440p or 4K with high texture settings — 16GB VRAM prevents stuttering
- You're targeting 4K or want 3+ years of headroom at max settings
Buy RTX 3070 if…
- You game primarily at 1080p where 8GB VRAM is sufficient today
- You have a smaller case, lower-wattage PSU, or want a quieter cooling setup
- You game at 1080p or 1440p and don't need flagship-level headroom
Best for your resolution
🖥️ 1080p High-Refresh Gaming
Nvidia RTX 3070 (more power efficient)
At 1080p, both cards have sufficient raw power for 144+ fps in most titles. The lower-tier card is usually the smarter purchase here — you're not using the extra performance headroom, but you are saving money and running cooler.
🎯 1440p Competitive Gaming
Nvidia RTX 4080 Super
1440p is where upscaling tech and VRAM start to matter. Nvidia RTX 4080 Super's DLSS 3 Frame Generation delivers a real FPS advantage in supported titles, making it the stronger 1440p choice.
🔮 4K & Future-Proofing
Nvidia RTX 4080 Super
Nvidia RTX 4080 Super's 16GB VRAM is the right buffer for 4K ultra texture packs — VRAM saturation at 4K causes stuttering that raw GPU power alone can't fix. This is the clear 4K pick between these two.
Building a budget gaming rig? Read our best budget GPU guide to see where each card fits in the broader market.
Bottom line
Gaming Performance
Nvidia RTX 4080 Super's DLSS DLSS 3 support (including Frame Generation) gives it a practical FPS advantage in the growing library of DLSS 3-supported titles. In non-DLSS games, rasterization performance is more closely matched.
Resolution & VRAM
At higher resolutions (1440p and 4K), Nvidia RTX 4080 Super's 16GB VRAM provides more headroom for texture-heavy games. At 1440p and 4K ultra textures, 16GB+ VRAM prevents the stuttering that smaller buffers cause.
Real-World Data
For the actual benchmark comparison and FPS estimates at your target resolution, use TechBenchPro's GPU comparator. It provides side-by-side performance data for both cards across popular games — more reliable than the spec-based analysis here.
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See FPS numbers side-by-side
This page covers spec-based analysis. For real FPS estimates across popular games at your resolution, use TechBenchPro's GPU Comparator — free, no signup.
Open GPU Comparator on TechBenchProFrequently asked questions
Which is better for gaming — Nvidia RTX 4080 Super or Nvidia RTX 3070?
Nvidia RTX 4080 Super has a practical advantage in DLSS 3-supported games — Frame Generation can add significant frame rates with minimal quality loss. In non-DLSS titles, rasterization performance is closer, but Nvidia RTX 4080 Super's 736GB/s memory bandwidth gives it an edge at higher resolutions. For your specific game and resolution, use TechBenchPro's GPU comparator for real data.
Is 16GB VRAM actually worth it over 8GB?
At 1080p, 8GB is sufficient for most current games. At 1440p, you start to see VRAM pressure in texture-heavy titles at ultra settings — 8GB can cause stuttering in some modern AAA games. At 4K ultra, 16GB provides real headroom. If you plan to keep the card for 3+ years, more VRAM is meaningful future insurance.
Is Nvidia RTX 4080 Super worth buying over Nvidia RTX 3070?
Nvidia RTX 4080 Super is built on Ada Lovelace (2024) versus Nvidia RTX 3070's Ampere (2020). Newer architecture typically delivers better power efficiency and improved ray tracing performance per watt. Nvidia RTX 4080 Super also brings 8GB more VRAM, which matters for longevity at 1440p and 4K.
Is DLSS on Nvidia RTX 4080 Super better than FSR on Nvidia RTX 3070?
DLSS 3 uses Nvidia's Tensor cores for AI-based upscaling and adds Frame Generation for extra FPS in supported titles — the quality at equivalent presets is generally sharper than FSR. FSR FSR 3 is open-source, works on all GPUs, and has broad game support, but is typically less sharp at the same base resolution. The practical gap depends on your game library — DLSS has stronger quality in supported titles; FSR wins on compatibility.
What PSU wattage do I need for Nvidia RTX 4080 Super or Nvidia RTX 3070?
For a full gaming system with Nvidia RTX 4080 Super (320W GPU TDP), a 850W PSU is recommended. For Nvidia RTX 3070 (220W TDP), plan for 700W. These figures account for CPU, RAM, storage, and load headroom. Always choose a reputable PSU brand (Seasonic, Corsair, be quiet!) — a cheap PSU that can't sustain its rated wattage under gaming load is a common source of system instability.
Choosing a GPU for a new build? Read our full PC building guide — it walks through every component decision including GPU selection.