G3D Mark is a standard benchmark that measures graphics performance in real-world gaming scenarios. It simplifies comparing cards from different brands, where higher scores directly correlate with better fps and smoother gaming experiences.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, raw graphics performance, VRAM, feature set, power efficiency, pricing context, and long-term value so you can see which GPU actually makes more sense.

GeForce GTX 1660 Ti

2019

Why buy it

✅Costs $121 less on MSRP ($279 MSRP vs $400 MSRP).
✅Delivers 40.4% more G3D Mark for each dollar spent, at 45.7 vs 32.5 G3D/$ ($279 MSRP vs $400 MSRP).
✅50% more VRAM for high-resolution textures and newer games (6 GB vs 4 GB).

Trade-offs

❌No equivalent frame-generation stack like FSR Frame Generation + AFMF (2023).
❌Weaker long-term outlook: Radeon RX 6600S is the safer future-proof pick thanks to newer hardware and better gaming feature support.
❌50% higher power demand at 120W vs 80W.
❌22800% longer card at 229mm vs 1mm.

Radeon RX 6600S

2022

Why buy it

✅Access to a newer frame-generation stack with FSR Frame Generation + AFMF (2023).
✅More future proof: RDNA 2.0 (2020−2025) on 7nm with a newer platform for upcoming games.
✅Draws 80W instead of 120W, a 40W reduction.
✅Measures 1mm instead of 229mm, a 228mm shorter card that is more SFF-friendly.

Trade-offs

❌Less VRAM, with 4 GB vs 6 GB for high-resolution textures and newer games.
❌
43.4% HIGHER MSRP
$400 MSRPvs$279 MSRP
❌Lower G3D Mark per dollar, at 32.5 vs 45.7 G3D/$ ($400 MSRP vs $279 MSRP).

GeForce GTX 1660 Ti

2019

Radeon RX 6600S

2022

Why buy it

✅Costs $121 less on MSRP ($279 MSRP vs $400 MSRP).
✅Delivers 40.4% more G3D Mark for each dollar spent, at 45.7 vs 32.5 G3D/$ ($279 MSRP vs $400 MSRP).
✅50% more VRAM for high-resolution textures and newer games (6 GB vs 4 GB).

Why buy it

✅Access to a newer frame-generation stack with FSR Frame Generation + AFMF (2023).
✅More future proof: RDNA 2.0 (2020−2025) on 7nm with a newer platform for upcoming games.
✅Draws 80W instead of 120W, a 40W reduction.
✅Measures 1mm instead of 229mm, a 228mm shorter card that is more SFF-friendly.

Trade-offs

❌No equivalent frame-generation stack like FSR Frame Generation + AFMF (2023).
❌Weaker long-term outlook: Radeon RX 6600S is the safer future-proof pick thanks to newer hardware and better gaming feature support.
❌50% higher power demand at 120W vs 80W.
❌22800% longer card at 229mm vs 1mm.

Trade-offs

❌Less VRAM, with 4 GB vs 6 GB for high-resolution textures and newer games.
❌
43.4% HIGHER MSRP
$400 MSRPvs$279 MSRP
❌Lower G3D Mark per dollar, at 32.5 vs 45.7 G3D/$ ($400 MSRP vs $279 MSRP).

Quick Answers

So, is Radeon RX 6600S better than GeForce GTX 1660 Ti?

Yes. Radeon RX 6600S is clearly the better overall GPU here. You are also looking at 13,016 vs 12,747 in G3D Mark. On top of that, Radeon RX 6600S is a 2022 card with FSR 3 + AFMF, while GeForce GTX 1660 Ti is a 2019 model from an older generation with no meaningful modern upscaling stack. So this is not really a tight same-tier comparison. It is more a modern card against an older, weaker alternative.

Which one is more future-proof for 2026 and beyond?

Radeon RX 6600S is the more future-proof choice for 2026 and beyond. You are getting a newer 2022 generation instead of 2019, better upscaling support with FSR 3 (2023) instead of no meaningful modern upscaling stack and better frame-generation support with FSR Frame Generation + AFMF (2023) instead of no meaningful modern upscaling stack, and a 7nm process instead of 12nm. That broader feature stack should age better as more games lean on modern upscaling and frame-generation support.

Which one is the smarter buy today, not just the cheaper card?

GeForce GTX 1660 Ti can still make sense if you find it at the right price, especially around $279 MSRP. Radeon RX 6600S is still the smarter buy for most people, though, because the raw performance is close while the overall package is cleaner. Radeon RX 6600S is about 43.4% more expensive on MSRP at $400 MSRP versus $279 MSRP, and you are getting 2.1% higher G3D Mark. Moving to $400 MSRP gets you newer hardware, lower power draw (80W vs 120W), and FSR 3 + AFMF.

Is GeForce GTX 1660 Ti still worth buying for gaming in 2026?

Yes. GeForce GTX 1660 Ti is still a strong gaming card in 2026: it is very strong for 1080p, good for 1440p, and more limited at 4K. Price is really the swing factor here. If you find it at or below $279 MSRP, it remains a very sensible buy. Radeon RX 6600S is still the safer recommendation for most fresh builds because it offers a cleaner overall package with newer hardware and FSR 3 + AFMF.

Games Benchmarks

Real-world benchmarks and performance projections based on comprehensive hardware analysis and comparative metrics. Values represent expected performance on High/Ultra settings at 1080p, 1440p, and 4K. Modeled using a Ryzen 7 9800X3D reference profile to minimize specific CPU bottlenecks.

Note: Performance behavior can vary per game. Specific architectures may perform better or worse depending on game engine optimizations and API implementation.

GeForce GTX 1660 Ti Benchmark Check

Radeon RX 6600S Benchmark Check

Path of Exile 2

Preset	GeForce GTX 1660 Ti	Radeon RX 6600S
1080p
low	98 FPS	157 FPS
medium	88 FPS	144 FPS
high	76 FPS	125 FPS
ultra	63 FPS	94 FPS
1440p
low	90 FPS	137 FPS
medium	77 FPS	117 FPS
high	66 FPS	100 FPS
ultra	54 FPS	78 FPS
4K
low	45 FPS	64 FPS
medium	41 FPS	56 FPS
high	30 FPS	48 FPS
ultra	26 FPS	43 FPS

Open GeForce GTX 1660 Ti Open Radeon RX 6600S

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	GeForce GTX 1660 Ti	Radeon RX 6600S
1080p
low	269 FPS	287 FPS
medium	227 FPS	235 FPS
high	170 FPS	185 FPS
ultra	136 FPS	145 FPS
1440p
low	183 FPS	182 FPS
medium	156 FPS	147 FPS
high	124 FPS	115 FPS
ultra	100 FPS	92 FPS
4K
low	106 FPS	98 FPS
medium	89 FPS	78 FPS
high	72 FPS	64 FPS
ultra	56 FPS	49 FPS

Open GeForce GTX 1660 Ti Open Radeon RX 6600S

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	GeForce GTX 1660 Ti	Radeon RX 6600S
1080p
low	574 FPS	498 FPS
medium	459 FPS	438 FPS
high	382 FPS	346 FPS
ultra	287 FPS	293 FPS
1440p
low	430 FPS	347 FPS
medium	344 FPS	316 FPS
high	287 FPS	262 FPS
ultra	215 FPS	213 FPS
4K
low	287 FPS	226 FPS
medium	229 FPS	196 FPS
high	191 FPS	150 FPS
ultra	143 FPS	112 FPS

Open GeForce GTX 1660 Ti Open Radeon RX 6600S

League of Legends

League of Legends

Valorant

Preset	GeForce GTX 1660 Ti	Radeon RX 6600S
1080p
low	401 FPS	327 FPS
medium	326 FPS	261 FPS
high	263 FPS	235 FPS
ultra	221 FPS	200 FPS
1440p
low	330 FPS	250 FPS
medium	268 FPS	199 FPS
high	206 FPS	174 FPS
ultra	164 FPS	146 FPS
4K
low	158 FPS	134 FPS
medium	119 FPS	107 FPS
high	107 FPS	99 FPS
ultra	85 FPS	79 FPS

Open GeForce GTX 1660 Ti Open Radeon RX 6600S

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of GeForce GTX 1660 Ti and Radeon RX 6600S

GeForce GTX 1660 Ti

The GeForce GTX 1660 Ti is manufactured by NVIDIA. It was released in February 22 2019. It features the Turing architecture. The core clock ranges from 1500 MHz to 1770 MHz. It has 1536 shading units. The thermal design power (TDP) is 120W. Manufactured using 12 nm process technology. G3D Mark benchmark score: 12,747 points. Launch price was $279.

Radeon RX 6600S

The Radeon RX 6600S is manufactured by AMD. It was released in January 4 2022. It features the RDNA 2.0 architecture. The core clock ranges from 1700 MHz to 2000 MHz. It has 1792 shading units. The thermal design power (TDP) is 80W. Manufactured using 7 nm process technology. It features 28 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 13,016 points.

⚡

Graphics Performance

The GeForce GTX 1660 Ti scores 12,747 and the Radeon RX 6600S reaches 13,016 in the G3D Mark benchmark — just a 2.1% difference, making them near-identical in rasterization performance. The GeForce GTX 1660 Ti is built on Turing while the Radeon RX 6600S uses RDNA 2.0, both on 12 nm vs 7 nm. Shader units: 1,536 (GeForce GTX 1660 Ti) vs 1,792 (Radeon RX 6600S). Raw compute: 5.437 TFLOPS (GeForce GTX 1660 Ti) vs 7.168 TFLOPS (Radeon RX 6600S). Boost clocks: 1770 MHz vs 2000 MHz.

Feature	GeForce GTX 1660 Ti	Radeon RX 6600S
G3D Mark Score	12,747	13,016+2%
Architecture	Turing	RDNA 2.0
Process Node	12 nm	7 nm
Shading Units	1536	1792+17%
Compute (TFLOPS)	5.437 TFLOPS	7.168 TFLOPS+32%
Boost Clock	1770 MHz	2000 MHz+13%
ROPs	48	64+33%
TMUs	96	112+17%
L1 Cache	1.5 MB+200%	0.5 MB
L2 Cache	1.5 MB	2 MB+33%

✨

Advanced Features (DLSS/FSR)

A critical advantage for the Radeon RX 6600S is support for FSR Frame Generation + AFMF. This allows it to generate entire frames using AI/Algorithms, essentially doubling the frame rate in CPU-bound scenarios or heavy ray-tracing titles. The GeForce GTX 1660 Ti lacks specific hardware/driver support for this native frame generation tier.The GeForce GTX 1660 Ti gives access to NVIDIA DLSS (Deep Learning Super Sampling), widely regarding as the superior upscaling method for image quality. The Radeon RX 6600S relies on FSR (FidelityFX Super Resolution), which is capable but generally slightly noisier than DLSS in motion.

Feature	GeForce GTX 1660 Ti	Radeon RX 6600S
Upscaling Tech	Upscaling support	FSR 3
Frame Generation	Not Supported	FSR Frame Generation + AFMF
Ray Reconstruction	No	No
Low Latency	NVIDIA Reflex	AMD Anti-Lag

💾

Video Memory (VRAM)

The GeForce GTX 1660 Ti comes with 6 GB of VRAM, while the Radeon RX 6600S has 4 GB. The GeForce GTX 1660 Ti offers 50% more capacity, crucial for higher resolutions and texture-heavy games. Memory bandwidth: 288 GB/s (GeForce GTX 1660 Ti) vs 224 GB/s (Radeon RX 6600S) — a 28.6% advantage for the GeForce GTX 1660 Ti. Bus width: 192-bit vs 128-bit. L2 Cache: 1.5 MB (GeForce GTX 1660 Ti) vs 2 MB (Radeon RX 6600S) — the Radeon RX 6600S has significantly larger on-die cache to reduce VRAM reliance.

Feature	GeForce GTX 1660 Ti	Radeon RX 6600S
VRAM Capacity	6 GB+50%	4 GB
Memory Type	GDDR6	GDDR6
Memory Bandwidth	288 GB/s+29%	224 GB/s
Bus Width	192-bit+50%	128-bit
L2 Cache	1.5 MB	2 MB+33%

🖥️

Display & API Support

DirectX support: 12 (GeForce GTX 1660 Ti) vs 12_2 (Radeon RX 6600S). Vulkan: 1.4 vs 1.4. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 0.

Feature	GeForce GTX 1660 Ti	Radeon RX 6600S
DirectX	12	12_2
Vulkan	1.4	1.4
OpenGL	4.6	4.6
Max Displays	4	0

🎬

Media & Encoding

Hardware encoder: NVENC 7th gen (GeForce GTX 1660 Ti) vs VCN 3.0 (Radeon RX 6600S). Decoder: NVDEC 4th gen vs VCN 3.0. Supported codecs: H.264,H.265/HEVC,VP8,VP9 (GeForce GTX 1660 Ti) vs H.264,H.265/HEVC (Radeon RX 6600S).

Feature	GeForce GTX 1660 Ti	Radeon RX 6600S
Encoder	NVENC 7th gen	VCN 3.0
Decoder	NVDEC 4th gen	VCN 3.0
Codecs	H.264,H.265/HEVC,VP8,VP9	H.264,H.265/HEVC

🔌

Power & Dimensions

The GeForce GTX 1660 Ti draws 120W versus the Radeon RX 6600S's 80W — a 40% difference. The Radeon RX 6600S is more power-efficient. Recommended PSU: 450W (GeForce GTX 1660 Ti) vs 500W (Radeon RX 6600S). Power connectors: 8-pin vs Mobile. Card length: 229mm vs 1mm, occupying 2 vs 0 slots.

Feature	GeForce GTX 1660 Ti	Radeon RX 6600S
TDP	120W	80W-33%
Recommended PSU	450W-10%	500W
Power Connector	8-pin	Mobile
Length	229mm	1mm
Height	111mm	—
Slots	2	0-100%
Temp (Load)	75°C	—
Perf/Watt	106.2	162.7+53%

💰

Value Analysis

The GeForce GTX 1660 Ti launched at $279 MSRP, while the Radeon RX 6600S launched at $400. The GeForce GTX 1660 Ti costs 30.3% less ($121 savings) on MSRP. Performance per dollar on MSRP (G3D Mark / MSRP): 45.7 (GeForce GTX 1660 Ti) vs 32.5 (Radeon RX 6600S) — the GeForce GTX 1660 Ti offers 40.6% better value. The Radeon RX 6600S is the newer GPU (2022 vs 2019).