AMD Radeon RX 6600 XT 8GB
Overview
The Radeon RX 6600 XT is the 32 compute unit Navi 23 card of 2021, an 8 GB 1080p part with a 128-bit bus backed by 32 MB of Infinity Cache and a 160 W board power. It is the cheapest RDNA 2 card that still clears 10 TFLOPS of FP32, which is the honest way to compare it, because RDNA 2 has no matrix cores and its 21.21 TFLOPS FP16 figure is packed vector math at exactly twice the FP32 rate. Nothing in the generation publishes BF16, FP8, INT8 or INT4 throughput. For AI buyers the 8 GB frame buffer is the binding constraint long before the arithmetic rate is.
Performance
Peak theoretical throughput by precision type
| Precision | Peak |
|---|---|
FP64 | No verified data available |
FP32 32-bit floating point | 11TFLOPS |
TF32 | No verified data available |
BF16 | No verified data available |
FP16 16-bit floating point | 21TFLOPS |
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 160 W board power. Where only a sparse figure exists, the cell says so.
The Radeon RX 6600 XT 8GB 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
2021
Process Node
7nm
Memory
8 GB GDDR6
Bandwidth
256 GB/s
TDP
160 W
Max Power
~184 W
Transistors
11.1 billion
Stream Processors
2,048
Spec Confidence
Official
Full Specifications
| Compute Engine | |
|---|---|
| Stream Processors | 2,048 |
| Compute Units | 32 |
| Boost Clock | 2.59 GHz |
| Chip Design | |
| Transistors | 11.1 billion |
| Process Node | 7nm |
| Chiplets | 1 (Monolithic) |
| Memory | |
| VRAM | 8 GB |
| Memory Type | GDDR6 |
| Bandwidth | 256 GB/s |
| Interface Width | 128-bit |
| Memory Clock | 16 GT/s |
| Cache | |
| Infinity Cache | 32 MB |
| Power & Thermal | |
| TDP | 160 W |
| Max Board Power | The vendor publishes no maximum board power; the Max Power tile above estimates it from TDP |
| Power Connector | 1x8-Pin |
| Enterprise Features | |
| Sparsity | No |
| Compute APIs | DirectX 12, OpenGL, OpenCL, Vulkan |
| General | |
| Form Factor | PCIe |
| Architecture | RDNA 2 |
| Process Node | 7nm |
| Launch Year | 2021 |
Datasheet & Resources
Flopper Datasheet
AMD Radeon RX 6600 XT 8GB specifications, generated from our database. Printable.
Vendor product page
AMD documentation for the Radeon RX 6600 XT 8GB
AMD Radeon RX 6600 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 6600 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 6600 XT have?
The AMD Radeon RX 6600 XT delivers 11 TFLOPS FP32 and 21 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 6600 XT?
The AMD Radeon RX 6600 XT has a TDP (Thermal Design Power) rating of 160 watts.
How much memory does the AMD Radeon RX 6600 XT have?
The AMD Radeon RX 6600 XT is equipped with 8 GB of VRAM with 256 GB/s of memory bandwidth.
What architecture is the AMD Radeon RX 6600 XT based on?
The AMD Radeon RX 6600 XT is based on the RDNA 2 architecture, launched in 2021.
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