They are closely matched: AMD Radeon RX 6600S scores 46/100 and Nvidia GeForce GTX 1660 scores 45/100 in our overall comparison — within 1 point. Neither is a clear winner overall, so the decision comes down to the specific features and price that matter most to you.
AMD Radeon RX 6600S vs Nvidia GeForce GTX 1660
Updated Nov 2026 · Scored by the Let’s Compare Data Engine · How we score
For most buyers the AMD Radeon RX 6600S is the better pick — it scores 47/100 to the Nvidia GeForce GTX 1660's 43, leading on Core Specifications and Theoretical Performance. Choose the Nvidia GeForce GTX 1660 instead if api support and miscellaneous matter most to you, where it comes out ahead.
Verdict
Our overall take, at a glance
Key takeaways
- AMD Radeon RX 6600S and Nvidia GeForce GTX 1660 are closely matched overall (within 4 points).
- AMD Radeon RX 6600S stands out on Theoretical Performance Performance (FP16): 15.63 TFLOPS (56% more), Theoretical Performance Performance (FP32): 7.81 TFLOPS (55% more), Memory Technology: GDDR6.
- Nvidia GeForce GTX 1660 counters with Core Specifications Maximum Power: 120 W (50% more), Memory Capacity: 6 GB (50% more), Miscellaneous Platform: Desktop.
AMD Radeon RX 6600S and Nvidia GeForce GTX 1660 are closely matched
AMD Radeon RX 6600S
47
Nvidia GeForce GTX 1660
43
Where AMD Radeon RX 6600S stands out
- Theoretical Performance Performance (FP16): 15.63 TFLOPS (56% more)
- Theoretical Performance Performance (FP32): 7.81 TFLOPS (55% more)
- Memory Technology: GDDR6
Where Nvidia GeForce GTX 1660 stands out
- Core Specifications Maximum Power: 120 W (50% more)
- Memory Capacity: 6 GB (50% more)
- Miscellaneous Platform: Desktop
In-depth analysisAI
AI-generated from the cited sources — may be incomplete or inaccurate; verify important details before deciding · generated Nov 2026.
AMD Radeon RX 6600S
The AMD Radeon RX 6600S is a dedicated graphics processor designed for mobile platforms, utilizing a 7-nanometer manufacturing process. It comes equipped with 8 GB of dedicated GDDR6 memory on a 192-bit bus, achieving a memory bandwidth of 432 GB/s. With an adjustable power envelope between 50 and 100 watts, it balances thermal efficiency and performance for portable gaming setups.
Best for Mid-range gaming on portable and thin-and-light laptop designsBest for Content creation tasks requiring dedicated VRAM on the go
Pros
- Dedicated 8 GB GDDR6 memory prevents the system from sharing main memory for graphical tasks
- High memory bandwidth of 432 GB/s supported by a wide 192-bit bus
- Flexible power requirements from 50W to 100W allow for integration into thinner laptop form factors
- Up-to-date API support including Vulkan 1.3 and DirectX 12
Cons
- Peak single-precision performance of 7.0 TFLOPS may limit frame rates on demanding modern AAA games at high settings
Nvidia GeForce GTX 1660
The Nvidia GeForce GTX 1660 is a mid-range desktop graphics card introduced in 2019, powered by Nvidia's TU116 graphics processor. Built on TSMC's 12nm Turing microarchitecture, it includes efficiency improvements like concurrent integer and floating-point execution. Designed for budget-conscious gamers, it delivers mid-tier desktop performance while omitting dedicated AI and ray-tracing hardware.
Best for Budget 1080p desktop gaming builds that do not prioritize real-time ray tracingBest for Upgrading older desktop systems to support modern DirectX 12 and Vulkan APIs
Pros
- Utilizes Turing microarchitecture improvements such as concurrent integer and floating-point processing
- Supports modern graphics APIs including DirectX 12.0, Vulkan 1.4, and OpenGL 4.6
- Serves as an accessible mid-range option for 1080p desktop gaming
Cons
- Lacks dedicated hardware RT (ray tracing) and Tensor (AI) cores
- The GTX 16 series was officially discontinued in March 2024
Value for Money
Which is the better deal for the price
Pre-filled with launch prices where known — enter today's price for an up-to-date check. Use the same currency for both.
AMD Radeon RX 6600S
Nvidia GeForce GTX 1660
Performance
Higher benchmark score = faster
AMD Radeon RX 6600S13,569
Nvidia GeForce GTX 166011,608
Benchmark score — a measured indicator of raw performance, not a guarantee of real-world speed.
Detailed Specifications
The full spec sheet, side by side
Frequently Asked Questions
Common questions about AMD Radeon RX 6600S vs Nvidia GeForce GTX 1660 comparison
AMD Radeon RX 6600S and Nvidia GeForce GTX 1660 are compared side by side above across every spec in the gpus category — including performance, features and design — each scored 0–100 so you can see exactly where one leads the other. Our overall scores are 46/100 for AMD Radeon RX 6600S and 45/100 for Nvidia GeForce GTX 1660.
It's close — AMD Radeon RX 6600S (46/100) and Nvidia GeForce GTX 1660 (45/100) score almost the same. Pick based on price and the individual specs that matter most to you; the comparison above shows where each one pulls ahead.
Which would you buy?
Cast your voteOther Popular Comparisons
Explore more product comparisons
AMD Radeon RX 6600S
AMD Radeon RX 7900 XTX
VS
Nvidia GeForce GTX 1660
Nvidia GeForce RTX 5090
VS
AMD Radeon RX 6600S
AMD Radeon RX 7900 XT
VS
Nvidia GeForce GTX 1660
Nvidia GeForce RTX 4090
VS
AMD Radeon RX 6600S
AMD Radeon RX 9070 XT
VS
Nvidia GeForce GTX 1660
Nvidia GeForce RTX 5080
VS
AMD Radeon RX 6600S
AMD Radeon RX 7900 GRE
VS
Nvidia GeForce GTX 1660
Nvidia GeForce RTX 4080
VS
AMD Radeon RX 6600S
AMD Radeon RX 6950 XT
VS
Nvidia GeForce GTX 1660
Nvidia GeForce RTX 4080 Super
VS
AMD Radeon RX 6600S
AMD Radeon RX 9070
VS
Nvidia GeForce GTX 1660
Nvidia GeForce RTX 5070 Ti
VS