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NVIDIA GeForce RTX 4070 SupervsAMD Radeon RX 7900 XTX

The NVIDIA GeForce RTX 4070 Super and AMD Radeon RX 7900 XTX are high-end desktop graphics cards built on different architectures. Deciding between them comes down to balancing launch budgets, power efficiency, raw compute, and memory capacity.

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Intro

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Best for

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Biggest differences

  • Video memory

    AMD Radeon RX 7900 XTX leads

    2×

    higher is better

    • NVIDIA GeForce RTX 4070 Super12 GB
    • AMD Radeon RX 7900 XTX24 GB

  • Memory bus width

    AMD Radeon RX 7900 XTX leads

    2×

    higher is better

    • NVIDIA GeForce RTX 4070 Super192 bit
    • AMD Radeon RX 7900 XTX384 bit

  • Memory bandwidth

    AMD Radeon RX 7900 XTX leads

    +90%

    higher is better

    • NVIDIA GeForce RTX 4070 Super504 GB/s
    • AMD Radeon RX 7900 XTX960 GB/s

  • Launch price

    NVIDIA GeForce RTX 4070 Super leads

    −40%

    lower is better

    • NVIDIA GeForce RTX 4070 Super599 USD
    • AMD Radeon RX 7900 XTX999 USD

Where each one wins

  • NVIDIA GeForce RTX 4070 Super

    • Launch price
    • Shader cores
    • Memory type
    • Memory speed
    • Board power
    • Recommended PSU
    • DisplayPort outputs

  • AMD Radeon RX 7900 XTX

    • Boost clock
    • FP32 compute
    • Video memory
    • Memory bus width
    • Memory bandwidth
    • Last-level cache
    • DisplayPort version

What both have

  • PCIe version4.0
  • PCIe lanes16 lanes
  • HDMI version2.1
  • HDMI outputs1 ports
  • Max displays4 displays

Every spec

Red marks the better value in each row.

SpecNVIDIA GeForce RTX 4070 SuperAMD Radeon RX 7900 XTX
Overview

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Overview specs

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Release date2024-012022-121
Launch price599 USD999 USD2
Graphics chip

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Graphics chip specs

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ArchitectureAda lovelaceRdna 3
Shader cores7,168 cores6,144 cores
Boost clock2,475 MHz2,500 MHz3
Base clock1,980 MHzNot published
FP32 compute35.5 TFLOPS61.4 TFLOPS
Memory

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Memory specs

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Video memory12 GB24 GB
Memory typeGddr6xGddr6
Memory bus width192 bit384 bit
Memory bandwidth504 GB/s960 GB/s4
Memory speed21 Gbps20 Gbps
Last-level cache48 MB96 MB
Power

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Power specs

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Board power220 W355 W
Recommended PSU600 W800 W5
Power connectors12V-2x668-pin7
Interface

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Interface specs

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PCIe version4.04.0
PCIe lanes16 lanes16 lanes
Display outputs

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Display outputs specs

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HDMI version2.12.1
DisplayPort version1.4a2.18
HDMI outputs1 ports1 ports
DisplayPort outputs3 ports2 ports
Max displays4 displays4 displays
Video engine

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Video engine specs

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Hardware encodeAV1H.264, HEVC, AV19
Video encodersNot published2 encoders10
Size

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Size specs

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Card lengthNot published287 mm
Card heightNot publishedNot published
Slot widthNot published2.5 slots
Notes on 10 values — test conditions and caveats
  1. 1AMD Radeon RX 7900 XTX, Release date: First retail sale December 13, 2022; announced November 3, 2022.
  2. 2AMD Radeon RX 7900 XTX, Launch price: AMD's launch figure is the SEP (suggested e-commerce price); partner cards often sold higher.
  3. 3AMD Radeon RX 7900 XTX, Boost clock: Boost is a burst maximum; typical gaming runs near the 2300 MHz game clock.
  4. 4AMD Radeon RX 7900 XTX, Memory bandwidth: AMD also quotes 3500 GB/s 'effective' bandwidth with Infinity Cache; 960 GB/s is the raw VRAM figure.
  5. 5AMD Radeon RX 7900 XTX, Recommended PSU: AMD's 800W minimum assumes a Ryzen 9 5900X-class system; other builds may need more headroom.
  6. 6NVIDIA GeForce RTX 4070 Super, Power connectors: Nvidia's 16-pin header is the 12V-2x6 variant; an adapter cable for non-ATX 3.0 power supplies ships with the card.
  7. 7AMD Radeon RX 7900 XTX, Power connectors: The reference card uses two 8-pin connectors.
  8. 8AMD Radeon RX 7900 XTX, DisplayPort version: DisplayPort 2.1 runs UHBR 13.5, up to 54Gbps of display link bandwidth per AMD.
  9. 9AMD Radeon RX 7900 XTX, Hardware encode: AMD's spec table marks 4K H264 Encode, H265/HEVC Encode and AV1 Encode all as Yes.
  10. 10AMD Radeon RX 7900 XTX, Video encoders: AMD describes a Dual Media Engine, i.e. two encode/decode engines, capable of simultaneous 8K60 HEVC streams.

Price and value

The NVIDIA GeForce RTX 4070 Super launches at $599, undercutting its rival significantly. The AMD Radeon RX 7900 XTX arrives at $999 using a suggested e-commerce price where partner cards often sold higher.

Choosing the NVIDIA card saves hundreds of dollars upfront. Buyers looking for maximum performance must weigh that higher investment against the AMD alternative.

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Price and value

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Performance and power

The AMD card delivers 61.4 TFLOPS of FP32 compute alongside 6,144 shader cores, compared to the NVIDIA competitor with 7,168 cores and 35.5 TFLOPS. Boost clocks reach 2,500 MHz for the AMD entry and 2,475 MHz for NVIDIA.

Energy demands differ sharply between the two choices. The NVIDIA option requires a board power of 220 W and a 600 W power supply, whereas the AMD card demands 355 W and an 800 W minimum for a Ryzen 9 5900X-class system.

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Performance and power

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Memory and displays

The AMD Radeon RX 7900 XTX features 24 GB of GDDR6 memory on a 384-bit bus yielding 960 GB/s of raw VRAM bandwidth, plus a 96 MB last-level cache. The NVIDIA GeForce RTX 4070 Super offers 12 GB of GDDR6X on a 192-bit bus reaching 504 GB/s with a 48 MB cache and faster 21 Gbps memory speed.

For connectivity, the AMD flagship includes DisplayPort 2.1 running UHBR 13.5 up to 54Gbps of display link bandwidth with two ports, while the NVIDIA card equips three DisplayPort 1.4a outputs.

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Memory and displays

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The Verdict

Buy the NVIDIA GeForce RTX 4070 Super if you want to save money and run a lower-wattage power supply. Buy the AMD Radeon RX 7900 XTX if you need massive video memory and top-tier compute performance.

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Verdict

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Where to buy

FAQ

What power supply do these graphics cards require?

The NVIDIA card requires a 600 W power supply, while the AMD card requires an 800 W minimum assuming a Ryzen 9 5900X-class system.

How much video memory does each card have?

The AMD card comes with 24 GB of GDDR6 memory, whereas the NVIDIA card features 12 GB of GDDR6X memory.

What are the launch prices for the RTX 4070 Super and RX 7900 XTX?

The NVIDIA card launches at $599, and the AMD card launches at a $999 suggested e-commerce price.

What display outputs do they provide?

The NVIDIA card includes three DisplayPort 1.4a ports and one HDMI 2.1 port, while the AMD card features two DisplayPort 2.1 ports and one HDMI 2.1 port.

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FAQ

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