10 specifications

NVIDIA GeForce RTX 4090 vs AMD Radeon RX 7900 XTX

On paper, the NVIDIA GeForce RTX 4090 has more shading units. Shading-unit counts are not directly comparable across different architectures, so read that row as context rather than a verdict. Specifications describe what each card is designed to do; how much of that either one holds under continuous load is a separate question.

10 specifications · 3 with a higher side

NVIDIA GeForce RTX 4090

NVIDIA · GeForce RTX 40 · Desktop

Full specifications

AMD Radeon RX 7900 XTX

AMD · Radeon RX 7000 · Desktop

Full specifications

Compute

Architecture

Ada Lovelace (AD102-300)

RDNA 3 (Navi 31)

Shading units

16,384

6,144

Base clock

2230 MHz

1900 MHz

Boost clock

2520 MHz

2500 MHz

Memory

24 GB

Memory type

GDDR6X

GDDR6

Memory bus

384-bit

Power and platform

TDP

450 W

355 W

Process

5 nm

Launched

2022-10-12

2022-12-13

A check marks the higher figure only on rows where higher is unambiguously better. Rows without one are not ties; they are specifications where “better” has no meaning.

More comparisons

Every figure on this table is a design target. None of it is a measurement.

Nothing above describes how a graphics card behaves twenty minutes into a sustained workload, which is where two chips with nearly identical specifications routinely diverge. A boost clock is a ceiling the vendor permits, not a rate the chip sustains, and whether it holds depends on the cooling, the case, the power profile and the room. None of those appear on a specification sheet.

We deliberately do not reduce these figures to a single score. A composite invented from specifications would look authoritative and measure nothing, and choosing the weights would be choosing the winner.

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