NVIDIA GeForce
GTX 1660 Ti
Turing · 6 GB GDDR6
NVIDIA GeForce VS AMD Radeon GPU COMPARISON
GTX 1660 Ti vs RX 6400
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
RX 6400
AMD Radeon
RX 6400
RDNA 2.0 · 4 GB GDDR6
QUICK ANSWER
GTX 1660 Ti leads in 3DMark Time Spy
GTX 1660 Ti has a median Graphics score of 6,339 versus 3,578 for RX 6400, a lead of about 77% in this synthetic workload.
3DMARK TIME SPY
Time Spy Graphics score comparison
Median Graphics scores across submitted 3DMark Time Spy results; higher is better.
GTX 1660 Ti6,339
Median Time Spy Graphics score · 162,623 resultsView 3DMark result searchRX 64003,578
Median Time Spy Graphics score · 7,335 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
GTX 1660 Ti vs RX 6400 specs
Reference specifications from the RightNow GPU Database, whose upstream records come from TechPowerUp.
| Specification | GTX 1660 Ti | RX 6400 |
|---|---|---|
| Architecture | Turing | RDNA 2.0 |
| GPU codename | TU116 | Navi 24 |
| Foundry | TSMC | TSMC |
| Process size | 12 nm | 6 nm |
| Shader units | 1,536 | 768 |
| Base clock | 1,500 MHz | 1,923 MHz |
| Boost clock | 1,770 MHz | 2,321 MHz |
| Memory | 6 GB GDDR6 | 4 GB GDDR6 |
| Memory bus | 192-bit | 64-bit |
| Memory bandwidth | 288 GB/s | 128 GB/s |
| TMUs | 96 | 48 |
| ROPs | 48 | 32 |
| Tensor cores | Not listed | Not listed |
| Ray tracing cores | Not listed | 12 |
| L2 cache | 1.5 MB | 1 MB |
| TDP | 120 W | 53 W |
| Recommended system power | 300 W | 250 W |
| PCI Express | PCIe 3.0 x16 | PCIe 4.0 x4 |
| Power connectors | 1x 8-pin | Not listed |
| Display outputs | 1x DVI, 1x HDMI 2.0, 1x DisplayPort 1.4a | 1x HDMI 2.1, 1x DisplayPort 1.4a |
| DirectX | 12.1 | 12.2 |
| Vulkan | 1.4 | 1.4 |
| OpenGL | 4.6 | 4.6 |
| FP32 performance | 5.44 TFLOPS | 3.56 TFLOPS |
GTX 1660 Ti: RightNow GPU Database · upstream record · retrieved Aug 20, 2026
RX 6400: RightNow GPU Database · upstream record · retrieved Aug 20, 2026
HOW TO CHOOSE
Should you choose GTX 1660 Ti or RX 6400?
A useful choice depends on performance, memory, power, price, and the games or workloads you actually use.
Start with measured performance
GTX 1660 Ti has a median Graphics score of 6,339 versus 3,578 for RX 6400, a lead of about 77% in this synthetic workload. Treat a result within roughly three percent as effectively close in this synthetic workload.
Check memory and power
GTX 1660 Ti lists 6 GB GDDR6 and 120 W graphics power; RX 6400 lists 4 GB GDDR6 and 53 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.