AMD Radeon RX 6800 XT 16GB
Overview
The Radeon RX 6800 XT is the 72 compute unit cut of Navi 21, launched alongside the RX 6800 in November 2020 with the same 16 GB of GDDR6, the same 128 MB Infinity Cache and the same 300 W board power as the RX 6900 XT above it. For anyone shopping it for AI rather than games, the number that matters is 20.74 TFLOPS FP32, because RDNA 2 carries no matrix hardware and AMD's 41.47 TFLOPS FP16 figure is packed vector math at exactly twice that rate. There is no BF16, FP8, INT8 or INT4 throughput published for the generation. Its appeal is the 16 GB frame buffer at a used-market price, not throughput.
Performance
Peak theoretical throughput by precision type
| Precision | Peak |
|---|---|
FP64 | No verified data available |
FP32 32-bit floating point | 21TFLOPS |
TF32 | No verified data available |
BF16 | No verified data available |
FP16 16-bit floating point | 41TFLOPS |
FP8 | No verified data available |
FP6 | No verified data available |
FP4 | No verified data available |
INT8 | No verified data available |
Every figure here is dense. The vendor documents no structured (2:4) sparsity mode for this part, so there is no second number to quote.
Per watt divides the dense figure by the 300 W board power. Where only a sparse figure exists, the cell says so.
The Radeon RX 6800 XT 16GB in the GPU landscape
Peak FP16 TFLOPS (dense) against TDP, single-GPU parts tracked by Flopper
Higher and further left is better: more half-precision throughput for less power.
Specifications
Architecture
RDNA 2
Form Factor
PCIe
Launch Year
2020
Process Node
7nm
Memory
16 GB GDDR6
Bandwidth
512 GB/s
TDP
300 W
Max Power
~345 W
Transistors
26.8 billion
Stream Processors
4,608
Spec Confidence
Official
Full Specifications
| Compute Engine | |
|---|---|
| Stream Processors | 4,608 |
| Compute Units | 72 |
| Chip Design | |
| Transistors | 26.8 billion |
| Process Node | 7nm |
| Chiplets | 1 (Monolithic) |
| Memory | |
| VRAM | 16 GB |
| Memory Type | GDDR6 |
| Bandwidth | 512 GB/s |
| Interface Width | 256-bit |
| Memory Clock | 16 GT/s |
| Cache | |
| Infinity Cache | 128 MB |
| Power & Thermal | |
| TDP | 300 W |
| Max Board Power | The vendor publishes no maximum board power; the Max Power tile above estimates it from TDP |
| Power Connector | 2x8-Pin |
| Enterprise Features | |
| Sparsity | No |
| Compute APIs | DirectX 12, OpenGL, OpenCL, Vulkan |
| Physical & Media | |
| Card Length | 267 mm |
| Width | 2.5-slot |
| General | |
| Form Factor | PCIe |
| Architecture | RDNA 2 |
| Process Node | 7nm |
| Launch Year | 2020 |
Datasheet & Resources
Flopper Datasheet
AMD Radeon RX 6800 XT 16GB specifications, generated from our database. Printable.
Vendor product page
AMD documentation for the Radeon RX 6800 XT 16GB
AMD Radeon RX 6800 XT Product Page
AMD · Latest version
AMD Instinct Documentation
ROCm guides, architecture details
Data Provenance
Every figure traced to a source
Primary Source
- Document
- AMD Radeon RX 6800 XT Product Page
- Publisher
- AMD
- Published
- No verified data available
Data Quality
- Spec confidence
- Official
- Clock basis
- Boost
- Core precisions with figures
- 2 of 9
- Normalization
- All values in TFLOPS
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Frequently Asked Questions
How many TFLOPS does the AMD Radeon RX 6800 XT have?
The AMD Radeon RX 6800 XT delivers 21 TFLOPS FP32 and 41 TFLOPS FP16 at peak. Flopper does not currently have a verified FP8 throughput figure for it.
What is the power consumption of the AMD Radeon RX 6800 XT?
The AMD Radeon RX 6800 XT has a TDP (Thermal Design Power) rating of 300 watts.
How much memory does the AMD Radeon RX 6800 XT have?
The AMD Radeon RX 6800 XT is equipped with 16 GB of VRAM with 512 GB/s of memory bandwidth.
What architecture is the AMD Radeon RX 6800 XT based on?
The AMD Radeon RX 6800 XT is based on the RDNA 2 architecture, launched in 2020.
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