GeForce GTX 1660 Ti vs Radeon RX Vega 64
The Radeon RX Vega 64 pulls ahead here — substantially quicker, about 27% ahead of the GeForce GTX 1660 Ti.
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Radeon RX Vega 64 vs GeForce GTX 1660 Ti: In-Depth Breakdown
Performance: Radeon RX Vega 64 vs GeForce GTX 1660 Ti
The Radeon RX Vega 64 is significantly faster, around 27% ahead of the GeForce GTX 1660 Ti. That gap is enough to move it up a tier: the Radeon RX Vega 64 is comfortable at 1080p, while the GeForce GTX 1660 Ti is better matched to entry-level 1080p.
Power & Efficiency
Power draw favors the GeForce GTX 1660 Ti (120W vs 295W), and it's the more efficient card too, so it's the easy pick if thermals or a smaller PSU matter. Its more modern Turing architecture on a TSMC 12nm process is part of why it does more with each watt.
VRAM & Future-Proofing
The Radeon RX Vega 64 carries 8GB versus 6GB on the GeForce GTX 1660 Ti. The extra 2GB helps at 4K, with high-resolution texture packs, and for content-creation or local-AI workloads that exhaust smaller buffers.
Generation & Longevity
The GeForce GTX 1660 Ti is roughly 2 years newer than the Radeon RX Vega 64 (Turing vs GCN 5.0 (Vega)), so it generally benefits from a more modern architecture and longer driver-support runway.
Features & Ecosystem
Beyond raw numbers, the GeForce GTX 1660 Ti brings NVIDIA DLSS upscaling/frame generation and stronger ray tracing, while the Radeon RX Vega 64 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 GTX 1660 Ti or Radeon RX Vega 64?
The Radeon RX Vega 64 is the faster card by about 27%. 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 Vega 64 better than the GeForce GTX 1660 Ti?
Which is better for 4K gaming, the GeForce GTX 1660 Ti or the Radeon RX Vega 64?
Does the Radeon RX Vega 64 have enough VRAM advantage to matter?
Which should you buy: GeForce GTX 1660 Ti or Radeon RX Vega 64?
Technical Specifications Comparison
Architecture & Cores
| Specification | GeForce GTX 1660 Ti | Radeon RX Vega 64 |
|---|---|---|
| Architecture | Turing | GCN 5.0 (Vega) |
| Process Node | TSMC 12nm | GloFo 14nm |
| CUDA Cores (CUDA Cores / Stream Processors) | 1,536 | 4,096✓ |
Clock Speeds
| Specification | GeForce GTX 1660 Ti | Radeon RX Vega 64 |
|---|---|---|
| Base Clock | 1,500 MHz✓ | 1,247 MHz |
| Boost Clock | 1,770 MHz✓ | 1,546 MHz |
Memory
| Specification | GeForce GTX 1660 Ti | Radeon RX Vega 64 |
|---|---|---|
| VRAM Capacity | 6 GB | 8 GB✓ |
| Memory Type | GDDR6 | HBM2 |
| Memory Bus | 192-bit | 2048-bit✓ |
| Memory Speed | 12 Gbps✓ | 1.89 Gbps |
| Bandwidth | 288 GB/s | 483.8 GB/s✓ |
Connectivity & Power
| Specification | GeForce GTX 1660 Ti | Radeon RX Vega 64 |
|---|---|---|
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| TDP | 120 W✓ | 295 W |
| Power Connectors | 1x 8-pin | 2x 8-pin |
| Released | Feb 2019 | Aug 2017 |