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Compare · 2 products compared

NVIDIA GeForce RTX 5090vsNVIDIA GeForce RTX 4080 Super

These high-end graphics cards share identical physical dimensions and display output layouts. The choice between them comes down to a massive leap in processing power and memory capacity versus a much lower power draw and price tag.

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Intro

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Best for

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Biggest differences

  • Memory bandwidth

    NVIDIA GeForce RTX 5090 leads

    2.43×

    higher is better

    • NVIDIA GeForce RTX 50901,792 GB/s
    • NVIDIA GeForce RTX 4080 Super736 GB/s

  • Shader cores

    NVIDIA GeForce RTX 5090 leads

    2.13×

    higher is better

    • NVIDIA GeForce RTX 509021,760 cores
    • NVIDIA GeForce RTX 4080 Super10,240 cores

  • Launch price

    NVIDIA GeForce RTX 4080 Super leads

    2×

    lower is better

    • NVIDIA GeForce RTX 50901,999 USD
    • NVIDIA GeForce RTX 4080 Super999 USD

  • Video memory

    NVIDIA GeForce RTX 5090 leads

    2×

    higher is better

    • NVIDIA GeForce RTX 509032 GB
    • NVIDIA GeForce RTX 4080 Super16 GB

Where each one wins

  • NVIDIA GeForce RTX 5090

    • Shader cores
    • FP32 compute
    • Video memory
    • Memory type
    • Memory bus width
    • Memory bandwidth
    • Memory speed
    • Last-level cache
    • PCIe version
    • HDMI version
    • DisplayPort version
    • Video encoders
    • Slot width

  • NVIDIA GeForce RTX 4080 Super

    • Launch price
    • Boost clock
    • Base clock
    • Board power
    • Recommended PSU

What both have

  • Power connectors12V-2x6
  • HDMI outputs1 ports
  • DisplayPort outputs3 ports
  • Max displays4 displays
  • Card length304 mm
  • Card height137 mm

Every spec

Red marks the better value in each row.

SpecNVIDIA GeForce RTX 5090NVIDIA GeForce RTX 4080 Super
Overview

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Overview specs

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Release date2025-012024-01
Launch price1,999 USD999 USD
Graphics chip

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Graphics chip specs

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ArchitectureBlackwellAda lovelace
Shader cores21,760 cores10,240 cores
Boost clock2,410 MHz2,550 MHz
Base clock2,010 MHz2,290 MHz
FP32 compute104.8 TFLOPS52 TFLOPS
Memory

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Memory specs

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Video memory32 GB16 GB
Memory typeGddr7Gddr6x
Memory bus width512 bit256 bit
Memory bandwidth1,792 GB/s736 GB/s
Memory speed28 Gbps23 Gbps
Last-level cache96 MB64 MB
Power

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Power specs

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Board power575 W320 W
Recommended PSU1,000 W1750 W2
Power connectors12V-2x612V-2x63
Interface

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Interface specs

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PCIe version5.04.0
PCIe lanes16 lanesNot published
Display outputs

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Display outputs specs

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HDMI version2.1b2.1a
DisplayPort version2.1b41.4a
HDMI outputs1 ports1 ports
DisplayPort outputs3 ports3 ports
Max displays4 displays4 displays
Video engine

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Video engine specs

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Hardware encodeH.264, HEVC, AV1AV1
Video encoders3 encoders2 encoders
Size

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Size specs

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Card length304 mm304 mm
Card height137 mm137 mm
Slot width2 slots53 slots
Notes on 5 values — test conditions and caveats
  1. 1NVIDIA GeForce RTX 5090, Recommended PSU: NVIDIA's minimum for a PC with a Ryzen 9 9950X; it recommends a PCIe CEM 5.1 compliant PSU.
  2. 2NVIDIA GeForce RTX 4080 Super, Recommended PSU: NVIDIA's 750 W minimum assumes a PC with a Ryzen 9 5900X; needs vary by configuration.
  3. 3NVIDIA GeForce RTX 4080 Super, Power connectors: Card takes a 16-pin 12V-2x6 connector; a 3x PCIe 8-pin adapter ships in the box for PSUs without a PCIe Gen 5 cable.
  4. 4NVIDIA GeForce RTX 5090, DisplayPort version: DisplayPort 2.1b at UHBR20 on all three DP outputs.
  5. 5NVIDIA GeForce RTX 5090, Slot width: The card is 2-slot, but NVIDIA's install guide asks for 3-slot (61 mm) case clearance.

Performance and Architecture

The NVIDIA GeForce RTX 5090 introduces the Blackwell architecture, packing 21,760 shader cores and delivering 104.8 TFLOPS of FP32 compute. This massive generational hardware advantage handles extreme rendering loads far faster than the NVIDIA GeForce RTX 4080 Super.

Buyers stepping up to the 5090 gain superior ray tracing and compute capabilities, though the RTX 4080 Super maintains slightly higher base and boost clock speeds out of the box.

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Performance and Architecture

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Memory and Video Engine

The RTX 5090 equips 32 GB of GDDR7 video memory across a 512-bit bus, achieving a staggering 1,792 GB/s of memory bandwidth. By comparison, the RTX 4080 Super relies on 16 GB of GDDR6X on a 256-bit bus.

For heavy video production and 8K workflows, the 5090 adds a third hardware encoder and supports H.264 encoding alongside HEVC and AV1, doubling the encoding flexibility over the two encoders found on the RTX 4080 Super.

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Memory and Video Engine

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Power and System Requirements

Running the flagship RTX 5090 demands a massive 575 W board power and a minimum 1,000 W power supply unit. The RTX 4080 Super proves much easier to power with a modest 320 W board power and a 750 W minimum PSU requirement.

Both cards utilize the 12V-2x6 power connector, but the higher electrical demands of the 5090 require much more robust system infrastructure and cooling clearance.

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Power and System Requirements

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The Verdict

Buy the NVIDIA GeForce RTX 5090 if you need absolute top-tier rendering performance and 32 GB of memory. Buy the NVIDIA GeForce RTX 4080 Super if you want high-end gaming performance with a much lower power draw and price.

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Verdict

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Where to buy

FAQ

What power supply do I need for these graphics cards?

The RTX 5090 requires a minimum 1,000 W power supply, while the RTX 4080 Super requires a 750 W minimum.

Do both cards support AV1 hardware encoding?

Yes, both GPUs support AV1 encoding, but the RTX 5090 features three total hardware encoders and adds H.264 and HEVC support.

What is the difference in video memory capacity?

The RTX 5090 features 32 GB of GDDR7 memory, whereas the RTX 4080 Super has 16 GB of GDDR6X memory.

What PCIe version do they use?

The RTX 5090 supports PCIe 5.0, while the RTX 4080 Super supports PCIe 4.0.

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FAQ

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