GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
Market Value Leader
Radeon RX 580 is the clear winner, offering 1056.6% better value than GeForce GTX 1660 Ti.
The GeForce GTX 1660 Ti is dramatically faster than the Radeon RX 580, leading by roughly 83% in our performance index. The Radeon RX 580, however, delivers more performance per dollar — $2,303 BRL cheaper.
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GeForce GTX 1660 Ti vs Radeon RX 580: In-Depth Breakdown
Performance: GeForce GTX 1660 Ti vs Radeon RX 580
The GeForce GTX 1660 Ti is dramatically faster, around 83% ahead of the Radeon RX 580. Both cards sit in the same broad class, well suited to entry-level 1080p.
Price & Value
Right now the Radeon RX 580 starts at $114 BRL against $2,417 BRL for the GeForce GTX 1660 Ti. Despite being slower, the Radeon RX 580 offers the better performance-per-dollar (~1057% better value), so budget-focused buyers should weigh it carefully. The Radeon RX 580 is trading below its $229 BRL MSRP — a genuine deal. The GeForce GTX 1660 Ti still sits about $2,138 BRL above its $279 BRL MSRP.
Power & Efficiency
The GeForce GTX 1660 Ti draws just 120W versus 185W for the Radeon RX 580, and it also delivers more performance per watt — so it runs cooler and quieter and needs less PSU headroom. Its more modern Turing architecture on a TSMC 12nm process is part of why it does more with each watt.
VRAM & Future-Proofing
With 8GB against 6GB, the Radeon RX 580 has more headroom for 4K textures and memory-hungry creative/AI tasks where the GeForce GTX 1660 Ti's 6GB can fall short.
Generation & Longevity
The GeForce GTX 1660 Ti is roughly 2 years newer than the Radeon RX 580 (Turing vs GCN 4.0 (Polaris)), 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 580 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 580?
Choose the GeForce GTX 1660 Ti if you want the most performance and can absorb the higher price. If you're optimizing for value, the Radeon RX 580 stretches your money further for only slightly lower performance.
Frequently Asked Questions
Is the GeForce GTX 1660 Ti better than the Radeon RX 580?
Which is better for 4K gaming, the GeForce GTX 1660 Ti or the Radeon RX 580?
Is the GeForce GTX 1660 Ti worth the extra $2,303 BRL over the Radeon RX 580?
Does the Radeon RX 580 have enough VRAM advantage to matter?
Technical Specifications Comparison
Architecture & Cores
| Specification | GeForce GTX 1660 Ti | Radeon RX 580 |
|---|---|---|
| Architecture | Turing | GCN 4.0 (Polaris) |
| Process Node | TSMC 12nm | GloFo 14nm |
| CUDA Cores (CUDA Cores / Stream Processors) | 1,536 | 2,304✓ |
Clock Speeds
| Specification | GeForce GTX 1660 Ti | Radeon RX 580 |
|---|---|---|
| Base Clock | 1,500 MHz✓ | 1,257 MHz |
| Boost Clock | 1,770 MHz✓ | 1,340 MHz |
Memory
| Specification | GeForce GTX 1660 Ti | Radeon RX 580 |
|---|---|---|
| VRAM Capacity | 6 GB | 8 GB✓ |
| Memory Type | GDDR6 | GDDR5 |
| Memory Bus | 192-bit | 256-bit✓ |
| Memory Speed | 12 Gbps✓ | 8 Gbps |
| Bandwidth | 288 GB/s✓ | 256 GB/s |
Connectivity & Power
| Specification | GeForce GTX 1660 Ti | Radeon RX 580 |
|---|---|---|
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| TDP | 120 W✓ | 185 W |
| Power Connectors | 1x 8-pin | 1x 8-pin |
| Released | Feb 2019 | Apr 2017 |
