GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
Market Value Leader
Only verified data for Radeon RX 6400 is available. Benchmarks for other models are currently being processed.
The Radeon RX 6600M is dramatically faster than the Radeon RX 6400, leading by roughly 217% in our performance index. The Radeon RX 6400 is the cheaper option by $4,343 AED.
Maximum Capacity Reached. Remove a model to add another. (2/2)
Radeon RX 6600M vs Radeon RX 6400: In-Depth Breakdown
Performance: Radeon RX 6600M vs Radeon RX 6400
The Radeon RX 6600M is dramatically faster, around 217% ahead of the Radeon RX 6400. That gap is enough to move it up a tier: the Radeon RX 6600M is comfortable at 1080p, while the Radeon RX 6400 is better matched to entry-level 1080p. The Radeon RX 6600M packs 1,792 stream processors versus 768 on the Radeon RX 6400. The Radeon RX 6600M also has more RT cores (28 vs 12), strengthening its ray-tracing and AI-upscaling performance.
Price & Value
Right now the Radeon RX 6400 starts at $852 AED against $5,195 AED for the Radeon RX 6600M. The Radeon RX 6400 still sits about $693 AED above its $159 AED MSRP.
Power & Efficiency
The Radeon RX 6400 pulls less power (53W vs 100W), so it's the easier card to cool and the lighter load on your PSU. The faster Radeon RX 6600M draws more overall but extracts more performance from each watt — plan for a sturdier power supply if you pick it.
VRAM & Future-Proofing
With 8GB against 4GB, the Radeon RX 6600M has more headroom for 4K textures and memory-hungry creative/AI tasks where the Radeon RX 6400's 4GB can fall short. The Radeon RX 6600M's memory is also faster — 256 GB/s versus 128 GB/s (128-bit vs 64-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Which should you buy: Radeon RX 6400 or Radeon RX 6600M?
The Radeon RX 6600M is the faster card by about 217%. With live pricing limited for this pair, base your decision on the spec differences above — particularly VRAM and power draw — and check current stock before buying.
Frequently Asked Questions
Is the Radeon RX 6600M better than the Radeon RX 6400?
Which is better for 4K gaming, the Radeon RX 6400 or the Radeon RX 6600M?
Is the Radeon RX 6600M worth the extra $4,343 AED over the Radeon RX 6400?
Does the Radeon RX 6600M have enough VRAM advantage to matter?
Which is better for ray tracing, the Radeon RX 6600M or the Radeon RX 6400?
Technical Specifications Comparison
Architecture & Cores
| Specification | Radeon RX 6400 | Radeon RX 6600M |
|---|---|---|
| Architecture | RDNA 2 | RDNA 2 |
| Process Node | TSMC N6 | TSMC 7nm |
| CUDA Cores (Stream Processors / Stream Processors) | 768 | 1,792✓ |
| Ray Tracing Cores | 12 | 28✓ |
| Tensor / AI Cores | — | 56 |
Clock Speeds
| Specification | Radeon RX 6400 | Radeon RX 6600M |
|---|---|---|
| Base Clock | 1,923 MHz | 2,068 MHz✓ |
| Boost Clock | 2,321 MHz✓ | 2,177 MHz |
Memory
| Specification | Radeon RX 6400 | Radeon RX 6600M |
|---|---|---|
| VRAM Capacity | 4 GB | 8 GB✓ |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bus | 64-bit | 128-bit✓ |
| Memory Speed | 16 Gbps | 16 Gbps |
| Bandwidth | 128 GB/s | 256 GB/s✓ |
Connectivity & Power
| Specification | Radeon RX 6400 | Radeon RX 6600M |
|---|---|---|
| Interface | PCIe 4.0 x4 | PCIe 4.0 x8 |
| TDP | 53 W✓ | 100 W |
| Power Connectors | None | None |
| Released | Jan 2022 | Jun 2021 |