EASY x_x

Graphics card

GeForce RTX 4090 vs Radeon RX 6600 XT

Compared by performance index, specifications and load profile. The per-parameter difference comes first; the index follows.

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Verdict

GeForce RTX 4090 is 104% faster on the performance index.

The gap is decisive — these are different classes.

GeForce RTX 4090 leads on 5 parameters, Radeon RX 6600 XT on 0.

Specification source: A — NVIDIA; B — AMD. Specifications verified on 2026-07-27

Key differences

GeForce RTX 4090

Strengths

  • Ray tracing
  • Memory bandwidth
  • Rasterization

Trade-offs

  • level

Radeon RX 6600 XT

Strengths

  • level

Trade-offs

  • Ray tracing
  • Memory bandwidth
  • Rasterization

Difference per parameter

  • Rasterization

    340
    108

  • Ray tracing

    300
    54

  • Video memory

    24 GB
    8 GB

  • Power efficiency

    450 W
    160 W

  • Memory bandwidth

    384-bit GDDR6X
    128-bit GDDR6

Profile of both sides

RasterizationRay tracingVideo memoryPower efficiencyMemory bandwidth
GeForce RTX 4090Radeon RX 6600 XT

Specifications side by side

Side AGeForce RTX 4090Side BRadeon RX 6600 XT
Performance index340better108
Ray tracing index300better54
Video memory24 GBbetter8 GB
Memory typeGDDR6XGDDR6
Memory bus384 bitbetter128 bit
Boost clock2520 MHz2589 MHzbetter
Power draw (TDP)450 W160 Wbetter
UpscalerDLSSFSR
Process nodeTSMC 4 nmTSMC 7 nm
ReleasedQ4 2022Q3 2021

FPS in popular games

FPS is shown only when a verified measurement exists for the exact CPU, GPU and settings.

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Similar comparisons

Other pairs of the same class and pairs involving these models.

Deltas are computed from the EasyX-X catalog: relative performance indices and the vendor’s own published specifications. We do not copy third-party benchmark tables.