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 (Mobile)

2020

Why buy it

✅41.9% more average FPS across 50 tracked games in our benchmark data.
✅50% more VRAM for high-resolution textures and newer games (6 GB vs 4 GB).

Trade-offs

❌Limited future-proofing: older hardware, 6 GB of VRAM, and weaker feature support mean it will age faster in upcoming AAA games.
❌Lower G3D Mark per dollar, at 0 vs 24.4 G3D/$ (Unknown MSRP vs $400 MSRP).

Radeon 8040S

2025

Why buy it

✅Delivers 100+% more G3D Mark for each dollar spent, at 24.4 vs 0 G3D/$ ($400 MSRP vs Unknown MSRP).
✅More future proof: RDNA 3.5 (2024−2025) on 4nm with a newer platform for upcoming games.
✅More future proof: RDNA 3.5 (2024−2025) on 4nm with a newer platform for upcoming games.

Trade-offs

❌Lower average FPS than GeForce GTX 1660 Ti (Mobile) across 50 tracked games in our benchmark data.
❌Less VRAM, with 4 GB vs 6 GB for high-resolution textures and newer games.

GeForce GTX 1660 Ti (Mobile)

2020

Radeon 8040S

2025

Why buy it

✅41.9% more average FPS across 50 tracked games in our benchmark data.
✅50% more VRAM for high-resolution textures and newer games (6 GB vs 4 GB).

Why buy it

✅Delivers 100+% more G3D Mark for each dollar spent, at 24.4 vs 0 G3D/$ ($400 MSRP vs Unknown MSRP).
✅More future proof: RDNA 3.5 (2024−2025) on 4nm with a newer platform for upcoming games.
✅More future proof: RDNA 3.5 (2024−2025) on 4nm with a newer platform for upcoming games.

Trade-offs

❌Limited future-proofing: older hardware, 6 GB of VRAM, and weaker feature support mean it will age faster in upcoming AAA games.
❌Lower G3D Mark per dollar, at 0 vs 24.4 G3D/$ (Unknown MSRP vs $400 MSRP).

Trade-offs

❌Lower average FPS than GeForce GTX 1660 Ti (Mobile) across 50 tracked games in our benchmark data.
❌Less VRAM, with 4 GB vs 6 GB for high-resolution textures and newer games.

Quick Answers

So, is GeForce GTX 1660 Ti (Mobile) better than Radeon 8040S?

Yes. GeForce GTX 1660 Ti (Mobile) is clearly the better overall GPU here. GeForce GTX 1660 Ti (Mobile) averages 41.9% more FPS across 50 tracked games in our benchmark data. You are also looking at 10,119 vs 9,756 in G3D Mark. On top of that, GeForce GTX 1660 Ti (Mobile) is a 2020 card with no meaningful modern upscaling stack, while Radeon 8040S is a 2025 model from an older generation with FSR upscaling. 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 8040S is the more future-proof choice for 2026 and beyond. You are getting a newer 2025 generation instead of 2020, better upscaling support with FSR Upscaling / FSR 4 (2025) instead of no meaningful modern upscaling stack, and a 4nm 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 (Mobile) is priced in an unclear MSRP range at an unclear MSRP versus $400 MSRP, and you are getting 41.9% more estimated average FPS across 50 tracked games in our benchmark data and 3.7% higher G3D Mark. Radeon 8040S still holds the G3D-per-dollar lead, so the performance win comes with a real value premium. If you are comfortable paying the premium for the stronger gaming result, GeForce GTX 1660 Ti (Mobile) is the one to buy. If staying closer to budget matters more, Radeon 8040S still makes more sense on price alone, but the performance trade-off is much harder to justify by current standards.

When does Radeon 8040S make more sense than GeForce GTX 1660 Ti (Mobile)?

Yes. Radeon 8040S is still an excellent gaming GPU in 2026: it is still comfortable for 1080p and decent for 1440p, though 4K is more situational. It makes more sense if your priority is newer architecture, future-proofing, and staying closer to $400 MSRP more than squeezing out the extra headroom of GeForce GTX 1660 Ti (Mobile). The trade-off is that GeForce GTX 1660 Ti (Mobile) currently gives you 3.7% higher G3D Mark and 41.9% more estimated average FPS across 50 tracked games in our benchmark data. Radeon 8040S still holds the G3D-per-dollar lead, so the performance win comes with a real value premium.

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 (Mobile) Benchmark Check

Radeon 8040S Benchmark Check

Path of Exile 2

Preset	GeForce GTX 1660 Ti (Mobile)	Radeon 8040S
1080p
low	90 FPS	100 FPS
medium	81 FPS	90 FPS
high	67 FPS	76 FPS
ultra	55 FPS	63 FPS
1440p
low	84 FPS	91 FPS
medium	72 FPS	78 FPS
high	57 FPS	64 FPS
ultra	47 FPS	53 FPS
4K
low	40 FPS	45 FPS
medium	37 FPS	41 FPS
high	25 FPS	30 FPS
ultra	22 FPS	27 FPS

Open GeForce GTX 1660 Ti (Mobile)Open Radeon 8040S

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	GeForce GTX 1660 Ti (Mobile)	Radeon 8040S
1080p
low	201 FPS	135 FPS
medium	177 FPS	101 FPS
high	141 FPS	73 FPS
ultra	105 FPS	49 FPS
1440p
low	142 FPS	88 FPS
medium	119 FPS	59 FPS
high	96 FPS	45 FPS
ultra	77 FPS	32 FPS
4K
low	86 FPS	40 FPS
medium	73 FPS	29 FPS
high	58 FPS	24 FPS
ultra	44 FPS	17 FPS

Open GeForce GTX 1660 Ti (Mobile)Open Radeon 8040S

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	GeForce GTX 1660 Ti (Mobile)	Radeon 8040S
1080p
low	455 FPS	320 FPS
medium	364 FPS	274 FPS
high	286 FPS	201 FPS
ultra	228 FPS	165 FPS
1440p
low	341 FPS	235 FPS
medium	273 FPS	208 FPS
high	218 FPS	160 FPS
ultra	171 FPS	125 FPS
4K
low	222 FPS	140 FPS
medium	182 FPS	122 FPS
high	131 FPS	85 FPS
ultra	88 FPS	57 FPS

Open GeForce GTX 1660 Ti (Mobile)Open Radeon 8040S

League of Legends

League of Legends

Valorant

Preset	GeForce GTX 1660 Ti (Mobile)	Radeon 8040S
1080p
low	388 FPS	242 FPS
medium	317 FPS	179 FPS
high	258 FPS	149 FPS
ultra	218 FPS	126 FPS
1440p
low	314 FPS	186 FPS
medium	255 FPS	140 FPS
high	191 FPS	110 FPS
ultra	154 FPS	91 FPS
4K
low	152 FPS	90 FPS
medium	114 FPS	68 FPS
high	101 FPS	57 FPS
ultra	80 FPS	46 FPS

Open GeForce GTX 1660 Ti (Mobile)Open Radeon 8040S

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of GeForce GTX 1660 Ti (Mobile) and Radeon 8040S

GeForce GTX 1660 Ti (Mobile)

The GeForce GTX 1660 Ti (Mobile) is manufactured by NVIDIA. It was released in April 23 2020. It features the Turing architecture. The core clock ranges from 1350 MHz to 1485 MHz. It has 1024 shading units. The thermal design power (TDP) is 50W. Manufactured using 12 nm process technology. G3D Mark benchmark score: 10,119 points.

Radeon 8040S

The Radeon 8040S is manufactured by AMD. It was released in January 6 2025. It features the RDNA 3.5 architecture. The core clock ranges from 1295 MHz to 2800 MHz. It has 1024 shading units. The thermal design power (TDP) is 55W. Manufactured using 4 nm process technology. It features 16 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 9,756 points.

⚡

Graphics Performance

The GeForce GTX 1660 Ti (Mobile) scores 10,119 and the Radeon 8040S reaches 9,756 in the G3D Mark benchmark — just a 3.7% difference, making them near-identical in rasterization performance. The GeForce GTX 1660 Ti (Mobile) is built on Turing while the Radeon 8040S uses RDNA 3.5, both on 12 nm vs 4 nm. Shader units: 1,024 (GeForce GTX 1660 Ti (Mobile)) vs 1,024 (Radeon 8040S). Raw compute: 3.041 TFLOPS (GeForce GTX 1660 Ti (Mobile)) vs 5.734 TFLOPS (Radeon 8040S). Boost clocks: 1485 MHz vs 2800 MHz.

Feature	GeForce GTX 1660 Ti (Mobile)	Radeon 8040S
G3D Mark Score	10,119+4%	9,756
Architecture	Turing	RDNA 3.5
Process Node	12 nm	4 nm
Shading Units	1024	1024
Compute (TFLOPS)	3.041 TFLOPS	5.734 TFLOPS+89%
Boost Clock	1485 MHz	2800 MHz+89%
ROPs	32	32
TMUs	64	64
L2 Cache	1 MB	8 MB+700%

✨

Advanced Features (DLSS/FSR)

The GeForce GTX 1660 Ti (Mobile) gives access to NVIDIA DLSS (Deep Learning Super Sampling), widely regarding as the superior upscaling method for image quality. The Radeon 8040S relies on FSR (FidelityFX Super Resolution), which is capable but generally slightly noisier than DLSS in motion.

Feature	GeForce GTX 1660 Ti (Mobile)	Radeon 8040S
Upscaling Tech	Upscaling support	FSR Upscaling / FSR 4
Frame Generation	Not Supported	Not Supported
Ray Reconstruction	No	No
Low Latency	NVIDIA Reflex	AMD Anti-Lag

💾

Video Memory (VRAM)

The GeForce GTX 1660 Ti (Mobile) comes with 6 GB of VRAM, while the Radeon 8040S has 4 GB. The GeForce GTX 1660 Ti (Mobile) offers 50% more capacity, crucial for higher resolutions and texture-heavy games. Bus width: 192-bit vs System. L2 Cache: 1 MB (GeForce GTX 1660 Ti (Mobile)) vs 8 MB (Radeon 8040S) — the Radeon 8040S has significantly larger on-die cache to reduce VRAM reliance.

Feature	GeForce GTX 1660 Ti (Mobile)	Radeon 8040S
VRAM Capacity	6 GB+50%	4 GB
Memory Type	GDDR6	Shared
Memory Bandwidth	288 GB/s	System
Bus Width	192-bit	System
L2 Cache	1 MB	8 MB+700%

🖥️

Display & API Support

DirectX support: 12 (12_1) (GeForce GTX 1660 Ti (Mobile)) vs 12.2 (Radeon 8040S). Vulkan: 1.2 vs 1.4. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 4.

Feature	GeForce GTX 1660 Ti (Mobile)	Radeon 8040S
DirectX	12 (12_1)	12.2+2%
Vulkan	1.2	1.4+17%
OpenGL	4.6	4.6
Max Displays	4	4

🎬

Media & Encoding

Hardware encoder: NVENC 6th Gen (GeForce GTX 1660 Ti (Mobile)) vs VCN 4.5 (Radeon 8040S). Decoder: NVDEC 4th Gen vs VCN 4.5. Supported codecs: H.264,H.265,VP9 (GeForce GTX 1660 Ti (Mobile)) vs MPEG-2,H.264,HEVC,VP9,AV1 (Radeon 8040S).

Feature	GeForce GTX 1660 Ti (Mobile)	Radeon 8040S
Encoder	NVENC 6th Gen	VCN 4.5
Decoder	NVDEC 4th Gen	VCN 4.5
Codecs	H.264,H.265,VP9	MPEG-2,H.264,HEVC,VP9,AV1

🔌

Power & Dimensions

The GeForce GTX 1660 Ti (Mobile) draws 50W versus the Radeon 8040S's 55W — a 9.5% difference. The GeForce GTX 1660 Ti (Mobile) is more power-efficient. Recommended PSU: 500W (GeForce GTX 1660 Ti (Mobile)) vs 500W (Radeon 8040S). Power connectors: PCIe-powered vs PCIe-powered. Typical load temperature: 75 vs 85°C.

Feature	GeForce GTX 1660 Ti (Mobile)	Radeon 8040S
TDP	50W-9%	55W
Recommended PSU	500W	500W
Power Connector	PCIe-powered	PCIe-powered
Length	—	0mm
Height	—	0mm
Slots	0	0
Temp (Load)	75-12%	85°C
Perf/Watt	202.4+14%	177.4