Graphics cards/AMD Radeon RX 6400
AMD · Radeon RX 6000 · Desktop
AMD Radeon RX 6400
The AMD Radeon RX 6400 is AMD’s desktop graphics card with 4 GB of GDDR6 memory, 768 shading units and a boost clock of 2321 MHz.
Drawn from this part’s own specifications. No openly-licensed photograph of the AMD Radeon RX 6400 exists, so this is an illustration rather than a photograph.
Overview
The AMD Radeon RX 6400 is AMD’s desktop graphics card with 4 GB of GDDR6 memory, 768 shading units and a boost clock of 2321 MHz. These are the manufacturer’s published figures. They describe what the chip is designed to do, not what your particular machine does with it, and the gap between those two is usually cooling. A boost clock is a ceiling rather than a promise, and how long a graphics card holds it under continuous load is the one thing no specification sheet can tell you.
Specifications
- Architecture
- Not verified
- Shading units
- 768
- Base clock
- Not verified
- Boost clock
- 2321 MHz
- Memory
- 4 GB
- Memory type
- GDDR6
- Memory bus
- 64-bit
- Game clock
- 2039 MHz
- Compute units
- 12
- TDP
- 53 W
- Process
- Not verified
- Launched
- 2022-01-19
Comparable within an architecture. Across vendors or generations it is not a like-for-like count.
AMD's typical clock while gaming. A different quantity from a base clock.
Board power, not measured draw. A laptop GPU's power is a range the laptop maker chooses within.
Sources
Each figure, the label its source printed beside it, and the day it was read.
| Figure | As printed | Source | Checked |
|---|---|---|---|
| Shading units768 | Stream Processors | amd.comSpecification page | |
| Boost clock2321 MHz | Boost Frequency | amd.comSpecification page | |
| Memory4 GB | Max Memory Size | amd.comSpecification page | |
| Memory typeGDDR6 | Memory Type | amd.comSpecification page | |
| Memory bus64-bit | Memory Interface | amd.comSpecification page | |
| Game clock2039 MHz | Game Frequency | amd.comSpecification page | |
| Compute units12 | Compute Units | amd.comSpecification page | |
| TDP53 W | Typical Board Power (Desktop) | amd.comSpecification page | |
| Launched2022-01-19 | Launch Date | amd.comSpecification page |
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Compare
The 6 nearest graphics cards in the same segment, each with a published side-by-side.
Other graphics cards in AMD Radeon RX 6000
What these numbers mean
Every figure on this sheet 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.