GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
Market Value Leader
Only verified data for GeForce RTX 3090 is available. Benchmarks for other models are currently being processed.
The GeForce RTX 3090 is dramatically faster than the Radeon RX 6600M, leading by roughly 105% in our performance index.
Maximum Capacity Reached. Remove a model to add another. (2/2)
GeForce RTX 3090 vs Radeon RX 6600M: In-Depth Breakdown
Performance: GeForce RTX 3090 vs Radeon RX 6600M
The GeForce RTX 3090 is dramatically faster, around 105% ahead of the Radeon RX 6600M. That gap is enough to move it up a tier: the GeForce RTX 3090 is comfortable at 1440p, while the Radeon RX 6600M is better matched to 1080p.
Power & Efficiency
The Radeon RX 6600M draws just 100W versus 350W for the GeForce RTX 3090, and it also delivers more performance per watt — so it runs cooler and quieter and needs less PSU headroom. Its more modern RDNA 2 architecture on a TSMC 7nm process is part of why it does more with each watt.
VRAM & Future-Proofing
With 24GB against 8GB, the GeForce RTX 3090 has more headroom for 4K textures and memory-hungry creative/AI tasks where the Radeon RX 6600M's 8GB can fall short.
Features & Ecosystem
Beyond raw numbers, the GeForce RTX 3090 brings NVIDIA DLSS upscaling/frame generation and stronger ray tracing, while the Radeon RX 6600M offers AMD FSR upscaling and strong rasterization value. If you lean on upscaling or ray tracing, that ecosystem difference can matter as much as the frame-rate gap.
Which should you buy: GeForce RTX 3090 or Radeon RX 6600M?
The GeForce RTX 3090 is the faster card by about 105%. 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 GeForce RTX 3090 better than the Radeon RX 6600M?
Which is better for 4K gaming, the GeForce RTX 3090 or the Radeon RX 6600M?
Does the GeForce RTX 3090 have enough VRAM advantage to matter?
Technical Specifications Comparison
Architecture & Cores
| Specification | GeForce RTX 3090 | Radeon RX 6600M |
|---|---|---|
| Architecture | Ampere | RDNA 2 |
| Process Node | Samsung 8nm | TSMC 7nm |
| CUDA Cores (CUDA Cores / Stream Processors) | 10,496✓ | 1,792 |
| Ray Tracing Cores | 82✓ | 28 |
| Tensor / AI Cores | 328✓ | 56 |
Clock Speeds
| Specification | GeForce RTX 3090 | Radeon RX 6600M |
|---|---|---|
| Base Clock | 1,395 MHz | 2,068 MHz✓ |
| Boost Clock | 1,695 MHz | 2,177 MHz✓ |
Memory
| Specification | GeForce RTX 3090 | Radeon RX 6600M |
|---|---|---|
| VRAM Capacity | 24 GB✓ | 8 GB |
| Memory Type | GDDR6X | GDDR6 |
| Memory Bus | 384-bit✓ | 128-bit |
| Memory Speed | 19.5 Gbps✓ | 16 Gbps |
| Bandwidth | 936 GB/s✓ | 256 GB/s |
Connectivity & Power
| Specification | GeForce RTX 3090 | Radeon RX 6600M |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 4.0 x8 |
| TDP | 350 W | 100 W✓ |
| Power Connectors | 1x 12-pin | None |
| Released | Sep 2020 | Jun 2021 |
