Nvidia RTX 5070 vs RTX 4090: Key Differences

Updated 5 November 2026 · Standard formula, shown below

The GeForce RTX 5070 is a newer, lower-priced-class graphics card, while the RTX 4090 is a flagship from the previous generation; the 4090 is substantially faster for demanding gaming and GPU workloads. The 5070’s advantages are its newer features, lower power requirements, and more accessible system and budget demands—not performance parity with the 4090.

Where Each GPU Fits

Nvidia announced the RTX 5070 as part of its GeForce RTX 50 series, based on the Blackwell architecture. The RTX 4090 belongs to the RTX 40 series, based on Ada Lovelace. Their model numbers can mislead: a “50” series card is not automatically faster than a “90” series card from the preceding generation. The 5070 is a mainstream-to-upper-mainstream option; the 4090 was the top consumer GeForce model of its generation.

This comparison is useful when deciding whether to buy a new system, upgrade an existing one, or consider a used 4090. The answer depends on resolution, game settings, applications, power supply, and price—not just the release date or name.

Specifications and Architecture

The desktop RTX 5070 has 6,144 CUDA cores, 12 GB of GDDR7 memory on a 192-bit interface, and a 250 W total graphics power rating. The desktop RTX 4090 has 16,384 CUDA cores, 24 GB of GDDR6X on a 384-bit interface, and a 450 W total graphics power rating. These are reference specifications; partner cards may have different dimensions, cooling, clock speeds, and power limits.

Memory capacity: The 4090’s 24 GB gives it more room for high-resolution textures, large creative projects, and workloads that need substantial video memory. The 5070’s 12 GB can be sufficient for many games, but may constrain some demanding workloads or settings.
Memory type: GDDR7 is a newer memory generation than GDDR6X, but memory type alone does not determine overall performance. Capacity, bandwidth, GPU architecture, and workload all matter.
Power: The 5070’s lower rated graphics power generally makes it easier to cool and fit into a modest system. Actual system power depends on the CPU, other components, and the particular card.

Do not compare CUDA core counts across architectures as if each core were identical. Nor does a higher memory bandwidth figure or newer memory generation by itself establish which card is faster in a particular game.

Gaming Performance: What to Expect

For conventional rendering, the RTX 4090 is in a much higher performance class. It is the stronger choice for high-refresh-rate 4K gaming, demanding ray tracing, and games that benefit from its larger memory capacity. The RTX 5070 is aimed at a lower price and performance tier; it can be a sensible choice for 1440p gaming and can run 4K games with appropriate settings, but it should not be treated as a cheaper equivalent to a 4090.

There is no single percentage that accurately describes the gap in every game. Results vary with the game engine, resolution, ray tracing, graphics settings, CPU, driver, and test method. A CPU-limited game at 1080p may show a smaller difference than a GPU-heavy game at 4K. Look for benchmarks that use the exact games and settings you care about, and distinguish native rendering results from results using upscaling or frame generation.

Frame generation can make motion appear smoother by generating additional frames, but generated frames are not the same as frames rendered directly by the GPU. It does not erase differences in responsiveness, image quality, or base performance. Compare both cards with the same rendering and frame-generation settings.

Features, Creative Work, and AI

The RTX 5070 supports newer RTX 50-series features, including DLSS 4 features such as Multi Frame Generation in supported games. The RTX 4090 supports DLSS features available to the RTX 40 series, including frame generation, but does not support the RTX 50-series Multi Frame Generation feature. Feature availability depends on the game and software; a feature announcement does not mean every title supports it.

For creative applications, the right card depends on the specific program and project. Both cards support hardware-accelerated graphics and video features, but the 4090’s substantially greater compute resources and 24 GB of memory can matter for complex 3D scenes, high-resolution effects, and large local AI models. Check application-specific benchmarks and minimum memory requirements rather than assuming that every editing or AI task scales directly with gaming results.

Power, Case Fit, and Upgrade Considerations

A 450 W graphics-card rating means a 4090 needs more power and cooling headroom than a 250 W 5070. A power supply’s suitability depends on its capacity, quality, available connectors, the rest of the system, and the card manufacturer’s guidance. Check the exact model’s installation instructions before purchasing; connector arrangements and physical dimensions can differ between cards.

Measure available case length, width, and thickness, including space around the power connector and airflow path.
Check the power supply’s recommended capacity and required connectors for the exact card model.
Confirm that the case has adequate airflow and that the card will not obstruct other components.
For an existing PC, check CPU performance and monitor resolution too; an older or lower-end CPU can limit a powerful GPU in some games.

The 5070 is generally the easier fit for a system designed around a midrange graphics card. Replacing a 5070-class option with a 4090 may require checking several parts, not just swapping the card.

Price and Which One to Choose

The RTX 5070 launched at a much lower official starting price than the RTX 4090’s original $1,599 launch price. Actual street prices change with stock, location, card design, and whether a 4090 is new or used, so compare current listings rather than treating launch prices as today’s market value. A used flagship may look attractive, but its condition, remaining warranty, and power demands are part of the cost.

Choose the RTX 5070 if you want a newer-generation card for a more moderate budget, primarily play at 1440p, or need a lower-power build.
Choose the RTX 4090 if you need substantially higher GPU performance, target demanding 4K gaming, or benefit from 24 GB of video memory—and your budget, power supply, and case support it.
Consider neither yet if your current card already meets your needs. Check benchmarks for your games and applications before paying for performance you may not use.

The short version: the 5070 is not a direct 4090 replacement. It is a newer card in a lower tier, with newer-generation features and lower power use; the 4090 remains the much more capable option for workloads that can use its performance and memory.

Frequently Asked Questions

Is the RTX 5070 faster than the RTX 4090?
No. The RTX 4090 is substantially more powerful in demanding GPU-bound gaming and many compute workloads. The 5070 is newer, but it occupies a lower product tier.

Is the RTX 5070 good for 4K gaming?
It can play 4K games, but results depend on the title and settings. More demanding games may need reduced settings or upscaling. The RTX 4090 is the stronger choice for consistently high-end 4K performance.

Does the RTX 5070 have more VRAM than the RTX 4090?
No. The desktop RTX 5070 has 12 GB, while the desktop RTX 4090 has 24 GB. The 4090’s larger capacity can help with memory-intensive games and professional workloads.

Can the RTX 5070 use DLSS 4 Multi Frame Generation?
RTX 50-series cards support DLSS 4 Multi Frame Generation in supported games. The RTX 4090 supports other DLSS features, including frame generation, but not that RTX 50-series feature.

Should I upgrade from an RTX 4090 to an RTX 5070?
Usually not for more performance: the 5070 is a lower-tier card. A move might make sense if lower power use or access to a specific newer feature matters more to you than the 4090’s performance and memory capacity.

Method: the standard formula for this calculation, rounded as each result states. See how the calculators work or report an error.