AMD Radeon
RX 580
GCN 4.0 · 8 GB GDDR5
AMD Radeon VS NVIDIA GeForce GPU COMPARISON
RX 580 vs GTX 1660 Super
Compare RightNow GPU Database specifications and median 3DMark Time Spy Graphics scores. The quick answer below is intentionally separated from game-specific FPS and live pricing.
VS
NVIDIA GeForce
GTX 1660 Super
Turing · 6 GB GDDR6
QUICK ANSWER
GTX 1660 Super leads in 3DMark Time Spy
GTX 1660 Super has a median Graphics score of 6,043 versus 4,348 for RX 580, a lead of about 39% in this synthetic workload.
3DMARK TIME SPY
Time Spy Graphics score comparison
Median Graphics scores across submitted 3DMark Time Spy results; higher is better.
RX 5804,348
Median Time Spy Graphics score · 369,006 resultsView 3DMark result searchGTX 1660 Super6,043
Median Time Spy Graphics score · 274,164 resultsView 3DMark result searchTime Spy is a synthetic DirectX 12 workload, not an FPS guarantee. Submitted results can include different board models, drivers, cooling, overclocks, and laptop power limits. Models are desktop GPUs unless explicitly labeled Laptop.
SPECIFICATIONS
RX 580 vs GTX 1660 Super specs
Reference specifications from the RightNow GPU Database, whose upstream records come from TechPowerUp.
| Specification | RX 580 | GTX 1660 Super |
|---|---|---|
| Architecture | GCN 4.0 | Turing |
| GPU codename | Polaris 20 | TU116 |
| Foundry | GlobalFoundries | TSMC |
| Process size | 14 nm | 12 nm |
| Shader units | 2,304 | 1,408 |
| Base clock | 1,257 MHz | 1,530 MHz |
| Boost clock | 1,340 MHz | 1,785 MHz |
| Memory | 8 GB GDDR5 | 6 GB GDDR6 |
| Memory bus | 256-bit | 192-bit |
| Memory bandwidth | 256 GB/s | 336 GB/s |
| TMUs | 144 | 88 |
| ROPs | 32 | 48 |
| Tensor cores | Not listed | Not listed |
| Ray tracing cores | Not listed | Not listed |
| L2 cache | 2 MB | 1.5 MB |
| TDP | 185 W | 125 W |
| Recommended system power | 450 W | 300 W |
| PCI Express | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Power connectors | 1x 8-pin | 1x 8-pin |
| Display outputs | 1x HDMI 2.0b, 3x DisplayPort 1.4a | 1x DVI, 1x HDMI 2.0, 1x DisplayPort 1.4a |
| DirectX | 12.0 | 12.1 |
| Vulkan | 1.3 | 1.4 |
| OpenGL | 4.6 | 4.6 |
| FP32 performance | 6.17 TFLOPS | 5.03 TFLOPS |
RX 580: RightNow GPU Database · upstream record · retrieved Aug 20, 2026
GTX 1660 Super: RightNow GPU Database · upstream record · retrieved Aug 20, 2026
HOW TO CHOOSE
Should you choose RX 580 or GTX 1660 Super?
A useful choice depends on performance, memory, power, price, and the games or workloads you actually use.
Start with measured performance
GTX 1660 Super has a median Graphics score of 6,043 versus 4,348 for RX 580, a lead of about 39% in this synthetic workload. Treat a result within roughly three percent as effectively close in this synthetic workload.
Check memory and power
RX 580 lists 8 GB GDDR5 and 185 W graphics power; GTX 1660 Super lists 6 GB GDDR6 and 125 W. Board-partner models can use different coolers, limits, and connectors.
Verify the exact game and price
This comparison does not invent FPS or value claims. Check independent testing for your games and resolution, then compare the current prices of the exact cards available to you.