Best Used-Market Value
Radeon RX 580 2048SP Polaris 20 | GDDR5 | 4 GB has the stronger tracked performance-per-dollar score at current used prices. Radeon RX 580 2048SP Polaris 20 | GDDR5 | 4 GB is about $65 cheaper.
PC Part ValueGPU price and value comparison
Head-to-head used GPU value
Radeon RX 580 2048SP vs GeForce GTX 1660 Ti
Radeon RX 580 2048SP Polaris 20 | GDDR5 | 4 GB currently offers better used performance per dollar. GeForce GTX 1660 Ti TU116 | GDDR6 | 6 GB is about 2.4% faster in the tracked relative score.
Prices updated Aug 12, 2026
Used price differenceGeForce GTX 1660 Ti TU116 | GDDR6 | 6 GB is 162.8% higher
Performance differenceGeForce GTX 1660 Ti TU116 | GDDR6 | 6 GB is 2.4% higher
Value differenceGeForce GTX 1660 Ti TU116 | GDDR6 | 6 GB is 61% lower
Which GPU Should You Buy?
Current market, memory, and power differences that can change the better choice.
VRAM And Longevity
GeForce GTX 1660 Ti TU116 | GDDR6 | 6 GB includes 2 GB more VRAM. That can matter at higher texture settings, although capacity alone does not make a card faster.
Power And Upgrade Fit
GeForce GTX 1660 Ti TU116 | GDDR6 | 6 GB uses about 30 W less board power on the tracked specifications, which can reduce PSU and cooling requirements.
Price, Performance And Specification Comparison
Used price uses the latest median, then the 25th percentile or minimum as fallback.
| Metric | Radeon RX 580 2048SP Polaris 20 | GDDR5 | 4 GB | GeForce GTX 1660 Ti TU116 | GDDR6 | 6 GB |
|---|---|---|
| Current used price | $39.93 | $104.93 |
| Current new price | - | $79.99 |
| Relative performance | 4 | 4 |
| 3DMark Time Spy | 4,636 | 7,482 |
| Performance per used dollar | 0.105 | 0.041 |
| VRAM | 4 GB | 6 GB |
| Board power | 150 W | 120 W |
| Architecture | GCN 4.0 | Turing |
| Release year | 2018 | 2019 |
| Qualified sales | 5 | 15 |
Full valuation
Radeon RX 580 2048SP Polaris 20 | GDDR5 | 4 GB
Open price history, fair value range, confidence, and complete specifications.
Full valuationGeForce GTX 1660 Ti TU116 | GDDR6 | 6 GB
Open price history, fair value range, confidence, and complete specifications.
Build-level estimatePC Value Calculator
Estimate what a complete gaming PC containing either card may be worth.