The scenario that makes this comparison genuinely interesting is not someone shopping between two new cards at identical prices. It is a 2021-era owner who spent $1,500 or more on an RTX 3090 during the GPU shortage, now eyeing a $549 RTX 5070 and wondering whether the newer card delivers a meaningful upgrade or whether they are about to downgrade their compute headroom. It is also a used-market buyer weighing a 3090 at $800 against a brand-new 5070 at $549, trying to decide whether the extra VRAM and bus width justify paying 45% more for last-generation silicon.
Both cases expose a tension that does not resolve cleanly. The RTX 5070 brings a generation of architectural improvement, DLSS 4 with Multi Frame Generation, and dramatically better efficiency per frame. The RTX 3090 counters with 24 GB of VRAM, a wider 384-bit bus that ages more gracefully at high resolutions, and raw shader horsepower that still holds up in compute-heavy workloads. The honest answer depends on what you actually run, and this article lays out the tradeoff so you can make the call without marketing spin.
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Quick Verdict
For pure gaming throughput per dollar at 1080p and 1440p, the RTX 5070 wins outright. It matches or slightly exceeds the 3090 in rasterized frames while drawing roughly 100 watts less, and DLSS 4 Multi Frame Generation gives it a lead no 3090 can touch. The RTX 3090 retains its value proposition only in two specific domains: workloads that genuinely require more than 12 GB of VRAM, and buyers who can find one near $700 or below where the used price collapses close to the 5070 MSRP. If you own a 3090 and play games below 4K, there is no compelling reason to swap. If you are entering the market fresh, the 5070 is the rational purchase unless VRAM is your bottleneck.
Specs Side by Side
| Specification | RTX 5070 | RTX 3090 |
|---|---|---|
| Architecture | Blackwell (GB205) | Ampere (GA102) |
| CUDA Cores | 6,144 | 10,496 |
| Base Clock | 2,165 MHz | 1,395 MHz |
| Boost Clock | 2,512 MHz | 1,695 MHz |
| Memory | 12 GB GDDR7 | 24 GB GDDR6X |
| Memory Bus | 192-bit | 384-bit |
| Memory Bandwidth | 672 GB/s | 936 GB/s |
| TDP | 250W | 350W |
| RT Cores | 4th gen (5th gen hardware) | 2nd gen |
| Tensor Cores | 5th gen | 3rd gen |
| NVENC Encoder | 3x (9th gen) | 2x (7th gen) |
| MSRP (launch) | $549 | $1,499 |
Gaming Performance
1080p
At 1080p, both cards sit firmly in CPU-limited territory for most competitive titles. Launch coverage from TechSpot and Hardware Unboxed placed the RTX 5070 between 3% and 7% ahead of the 3090 on average across their test suites. In practice this means indistinguishable frame times at high refresh rates for a typical gamer. The 5070 does, however, unlock DLSS 4 Multi Frame Generation, which can push effective frame delivery into ranges the 3090 cannot reach without external frame-gen software, giving it a qualitative edge for those who care about 240+ Hz experiences.
1440p
Tom’s Hardware and Gamers Nexus both reported the RTX 5070 pulling roughly 4% to 8% ahead of the 3090 at 1440p in their rasterization benchmarks. The gap widens slightly at this resolution because the 3090’s lower clock speed becomes a more meaningful constraint when the GPU bottleneck grows. With DLSS Quality enabled, the 5070’s newer tensor cores widen the effective lead to 12% to 18% over the 3090 running DLSS 2. For a 1440p high-refresh monitor, the 5070 is the better platform today and the better platform two years from now given software feature trajectory.
4K
At 4K, the 3090’s wider bus and greater VRAM narrow the gap considerably. TechPowerUp’s aggregated launch data showed the two cards essentially tied at 4K in many titles, with the 5070 leading by 0% to 5% on average and the 3090 occasionally pulling ahead in bandwidth-starved workloads like certain Unreal Engine 5 titles with heavy texture streaming. Ray tracing performance still favors the 5070 by 8% to 15% due to improved RT cores, but the 3090’s 24 GB buffer prevents the texture-streaming stutters that a 12 GB card can encounter at 4K in poorly optimized games. The 4K story is the one place the 3090 remains genuinely competitive.
Power, Heat and Noise
This is where the 5070’s advantage is unambiguous. A stock RTX 5070 draws approximately 250W under full gaming load, while the RTX 3090 consistently pulls 320W to 360W depending on the board partner cooler and power limit. That 100-watt differential translates to roughly 30% to 35% less power consumption for equivalent or better frame rates. In a compact case or a system with a marginal 650W PSU, the 5070 removes thermal and headroom concerns entirely. The 3090’s Founders Edition ran hot and loud by design; even board-partner variants struggle to keep the 24 GB of GDDR6X below 80 degrees Celsius under sustained load. If you are sensitive to noise or live in a warm climate without strong air conditioning, the efficiency gap matters more than the small frame rate difference.
Features
The feature asymmetry is substantial. The RTX 5070 supports DLSS 4 with Multi Frame Generation, which can synthesize up to three additional frames per rendered frame in supported titles. The 3090 is locked to DLSS 2 and DLSS 3’s single-frame generation is not available because that feature relies on the 4th-generation optical flow accelerator that only exists on Ada Lovelace and newer cards. This means the 3090 cannot use frame generation natively at all. On the encoding side, the 5070’s 9th-generation NVENC handles AV1 and HEVC at higher quality and supports more simultaneous encode sessions, which matters for streamers running multiple outputs. The 3090 lacks AV1 hardware encode entirely, a real limitation if you want to stream or record at modern bitrates without burning a CPU core.
Price and Value
The RTX 5070 launched at $549 and has generally held near or slightly above that figure. The RTX 3090’s used price has fallen steeply since the 50-series launch, now hovering between $750 and $850 on most marketplaces depending on condition and board partner. At those prices, the 3090 costs roughly 40% to 55% more than a new 5070 for equivalent or slightly worse gaming performance and none of the software advantages. Cost per frame at 1440p rasterization favors the 5070 by a wide margin. The only scenario where the 3090’s used price makes sense is if you specifically need 24 GB of VRAM and cannot justify spending $1,100 or more on a 5080 or 5090.
Who Should Buy Which
Competitive 1080p Players
The RTX 5070. The frame rate difference at 1080p is trivial between the two cards, but the 5070’s lower latency with Multi Frame Generation, smaller physical footprint, and lower power draw make it the better platform for a high-refresh competitive rig. There is no advantage to the 3090 here at any price.
1440p High-Refresh Gamers
The RTX 5070 again. The 4% to 8% rasterization lead combined with DLSS 4 frame generation creates a decisive gap. The 3090 offers no counter-benefit at this resolution unless you are running extremely VRAM-hungry mods.
4K Gamers
This is the closest call. If you play at 4K with ultra settings and encounter games that push past 12 GB of VRAM usage, the 3090’s buffer prevents stutter. But the 5070’s ray tracing lead and DLSS 4 support offset the VRAM concern for most titles. If you can find a 3090 at $700 or below and already have a capable PSU, it is a defensible 4K card. Above that price, the 5070 is the better buy.
Creators and Streamers
The RTX 3090’s 24 GB of VRAM makes it genuinely useful in GPU-accelerated workloads like 3D rendering, large-scene DaVinci Resolve timelines, and AI inference tasks that exceed 12 GB. Streamers will prefer the 5070’s AV1 encoder unless they also run VRAM-heavy creative work on the same machine. For dedicated content creation rigs where VRAM is the bottleneck, the 3090 remains the cheaper path to 24 GB.
Upgraders from Two Generations Back (RTX 3070 or below)
The RTX 5070. It is a clear architectural leap over the 3070 and 3080, delivers better performance than a 3090 at a fraction of the power, and brings a full decade of software feature growth. The 3090 makes no sense as an upgrade target for someone coming from a 30-series card unless they specifically need the VRAM.
FAQ
Is the RTX 5070 faster than the RTX 3090?
In rasterization, the 5070 leads by approximately 4% to 8% on average across resolutions. In ray tracing, the lead widens to 10% to 15%. With DLSS 4 frame generation, the effective throughput gap becomes much larger. The 3090 occasionally matches or slightly beats the 5070 at 4K in bandwidth-limited titles, but the overall verdict favors the newer card.
Is 12 GB of VRAM enough in 2026?
For gaming at 1080p and 1440p, yes. At 4K with ultra textures and ray tracing, some titles will push past 12 GB and cause texture streaming or stutters. The 3090’s 24 GB is a genuine advantage for VRAM-heavy scenarios, though such cases remain a minority of current titles.
Should I sell my 3090 and buy a 5070?
For gaming alone, almost certainly not. The performance gain is marginal at best and the 3090’s VRAM buffer provides headroom. If you also want DLSS 4 and the 3090 is already sold or you are building a second system, the 5070 at $549 is a strong value proposition on its own.
Does the RTX 5070 support frame generation?
Yes. The 5070 supports DLSS 4, which includes Multi Frame Generation capable of synthesizing up to three frames per rendered frame in supported titles. The RTX 3090 supports neither DLSS 3 nor DLSS 4 frame generation because it lacks the required 4th-generation hardware optical flow accelerator.
Sources and Methodology
All performance figures and ranges in this article are approximate values derived from aggregated launch and follow-up coverage published by TechPowerUp, Tom’s Hardware, Gamers Nexus, Hardware Unboxed, and TechSpot. These outlets collectively reviewed both cards using standardized test suites that span multiple titles, APIs, and resolutions. No benchmarks were conducted by this site. Percentage ranges reflect the spread of results across outlets and are intended to characterize the general performance relationship between the two GPUs rather than assert a single definitive number. Specifications are taken from NVIDIA’s published documentation and board-partner datasheets.
