Radeon RX 6600M vs GeForce GTX 1660 Ti Mobile

Place in the ranking	194	136
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	100.00	no data
Power efficiency	24.77	24.58
Architecture	Turing (2018−2022)	RDNA 2.0 (2020−2024)
GPU code name	TU116	Navi 23
Market segment	Laptop	Laptop
Release date	23 April 2019 (5 years ago)	31 May 2021 (3 years ago)
Launch price (MSRP)	$229	no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	1536	1792
Core clock speed	1455 MHz	2068 MHz
Boost clock speed	1590 MHz	2416 MHz
Number of transistors	6,600 million	11,060 million
Manufacturing process technology	12 nm	7 nm
Power consumption (TDP)	80 Watt	100 Watt
Texture fill rate	152.6	270.6
Floating-point processing power	4.884 TFLOPS	8.659 TFLOPS
ROPs	48	64
TMUs	96	112
Ray Tracing Cores	no data	28

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Laptop size	medium sized	medium sized
Interface	PCIe 3.0 x16	PCIe 4.0 x8
Supplementary power connectors	no data	None

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory type	GDDR6	GDDR6
Maximum RAM amount	6 GB	8 GB
Memory bus width	192 Bit	128 Bit
Memory clock speed	1500 MHz	1750 MHz
Memory bandwidth	288.0 GB/s	224.0 GB/s
Shared memory	-	-

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors

No outputs

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX	12 (12_1)	12 Ultimate (12_2)
Shader Model	6.5	6.5
OpenGL	4.6	4.6
OpenCL	1.2	2.1
Vulkan	1.2.131	1.3
CUDA	7.5	-

Synthetic benchmark performance

Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.

Combined synthetic benchmark score

This is our combined benchmark score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

GTX 1660 Ti Mobile 28.90

RX 6600M 35.86
+24.1%

3DMark 11 Performance GPU

3DMark 11 is an obsolete DirectX 11 benchmark by Futuremark. It used four tests based on two scenes, one being few submarines exploring the submerged wreck of a sunken ship, the other is an abandoned temple deep in the jungle. All the tests are heavy with volumetric lighting and tessellation, and despite being done in 1280x720 resolution, are relatively taxing. Discontinued in January 2020, 3DMark 11 is now superseded by Time Spy.

GTX 1660 Ti Mobile 20119

RX 6600M 31868
+58.4%

3DMark Vantage Performance

3DMark Vantage is an outdated DirectX 10 benchmark using 1280x1024 screen resolution. It taxes the graphics card with two scenes, one depicting a girl escaping some militarized base located within a sea cave, the other displaying a space fleet attack on a defenseless planet. It was discontinued in April 2017, and Time Spy benchmark is now recommended to be used instead.

GTX 1660 Ti Mobile 49309

RX 6600M 72686
+47.4%

3DMark Fire Strike Graphics

Fire Strike is a DirectX 11 benchmark for gaming PCs. It features two separate tests displaying a fight between a humanoid and a fiery creature made of lava. Using 1920x1080 resolution, Fire Strike shows off some realistic graphics and is quite taxing on hardware.

GTX 1660 Ti Mobile 14818

RX 6600M 23525
+58.8%

3DMark Cloud Gate GPU

Cloud Gate is an outdated DirectX 11 feature level 10 benchmark that was used for home PCs and basic notebooks. It displays a few scenes of some weird space teleportation device launching spaceships into unknown, using fixed resolution of 1280x720. Just like Ice Storm benchmark, it has been discontinued in January 2020 and replaced by 3DMark Night Raid.

GTX 1660 Ti Mobile 97517

RX 6600M 144612
+48.3%

3DMark Ice Storm GPU

Ice Storm Graphics is an obsolete benchmark, part of 3DMark suite. Ice Storm was used to measure entry level laptops and Windows-based tablets performance. It utilizes DirectX 11 feature level 9 to display a battle between two space fleets near a frozen planet in 1280x720 resolution. Discontinued in January 2020, it is now superseded by 3DMark Night Raid.

GTX 1660 Ti Mobile 419800

RX 6600M 479404
+14.2%

3DMark Time Spy Graphics

GTX 1660 Ti Mobile 5659

RX 6600M 7840
+38.5%

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

Full HD	88 −12.5%	99 +12.5%
1440p	58 +9.4%	53 −9.4%
4K	32 +3.2%	31 −3.2%

Cost per frame, $

1080p	2.60	no data
1440p	3.95	no data
4K	7.16	no data

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

−27.9%

110
+27.9%

Full HD
Medium Preset

Assassin's Creed Odyssey	80 −35%	108 +35%
Assassin's Creed Valhalla	66 −43.9%	95 +43.9%
Battlefield 5	129 +12.2%	110−120 −12.2%
Call of Duty: Modern Warfare	82 +13.9%	70−75 −13.9%
Cyberpunk 2077	68 −32.4%	90 +32.4%
Far Cry 5	98 +25.6%	75−80 −25.6%
Far Cry New Dawn	102 +14.6%	85−90 −14.6%
Forza Horizon 4	304 +67%	180−190 −67%
Hitman 3	77 +2.7%	75−80 −2.7%
Horizon Zero Dawn	209 +38.4%	150−160 −38.4%
Metro Exodus	126 +8.6%	110−120 −8.6%
Red Dead Redemption 2	99 +16.5%	85−90 −16.5%
Shadow of the Tomb Raider	155 +22%	120−130 −22%
Watch Dogs: Legion	225 +82.9%	120−130 −82.9%

Full HD
High Preset

Assassin's Creed Odyssey	125 −59.2%	199 +59.2%
Assassin's Creed Valhalla	49 −61.2%	79 +61.2%
Battlefield 5	109 −5.5%	110−120 +5.5%
Call of Duty: Modern Warfare	73 +1.4%	70−75 −1.4%
Cyberpunk 2077	54 −33.3%	72 +33.3%
Far Cry 5	77 −1.3%	75−80 +1.3%
Far Cry New Dawn	70 −27.1%	85−90 +27.1%
Forza Horizon 4	256 +40.7%	180−190 −40.7%
Hitman 3	74 −1.4%	75−80 +1.4%
Horizon Zero Dawn	207 +37.1%	150−160 −37.1%
Metro Exodus	104 −11.5%	110−120 +11.5%
Red Dead Redemption 2	83 −2.4%	85−90 +2.4%
Shadow of the Tomb Raider	118 −46.6%	173 +46.6%
The Witcher 3: Wild Hunt	55−60 −32.1%	70−75 +32.1%
Watch Dogs: Legion	214 +74%	120−130 −74%

Full HD
Ultra Preset

Assassin's Creed Odyssey	53 −49.1%	79 +49.1%
Assassin's Creed Valhalla	42 −64.3%	69 +64.3%
Call of Duty: Modern Warfare	53 −35.8%	70−75 +35.8%
Cyberpunk 2077	52 −17.3%	61 +17.3%
Far Cry 5	57 −36.8%	75−80 +36.8%
Forza Horizon 4	99 −69.7%	168 +69.7%
Hitman 3	63 −19%	75−80 +19%
Horizon Zero Dawn	90 −48.9%	134 +48.9%
Shadow of the Tomb Raider	101 −51.5%	153 +51.5%
The Witcher 3: Wild Hunt	55 −54.5%	85 +54.5%
Watch Dogs: Legion	33 −78.8%	59 +78.8%

Full HD
Epic Preset

Red Dead Redemption 2

−6.3%

85−90
+6.3%

1440p
High Preset

Battlefield 5	66 −3%	65−70 +3%
Far Cry New Dawn	46 −17.4%	50−55 +17.4%

1440p
Ultra Preset

Assassin's Creed Odyssey	36 −41.7%	51 +41.7%
Assassin's Creed Valhalla	32 −62.5%	52 +62.5%
Call of Duty: Modern Warfare	38 −7.9%	40−45 +7.9%
Cyberpunk 2077	25 −44%	36 +44%
Far Cry 5	36 −13.9%	40−45 +13.9%
Forza Horizon 4	182 −11%	200−210 +11%
Hitman 3	41 −9.8%	45−50 +9.8%
Horizon Zero Dawn	65 −50.8%	98 +50.8%
Metro Exodus	60 −41.7%	85 +41.7%
Shadow of the Tomb Raider	55−60 −72.4%	100 +72.4%
The Witcher 3: Wild Hunt	30−35 −87.9%	62 +87.9%
Watch Dogs: Legion	203 +12.2%	180−190 −12.2%

1440p
Epic Preset

Red Dead Redemption 2

−8.9%

60−65
+8.9%

4K
High Preset

Battlefield 5	31 −12.9%	35−40 +12.9%
Far Cry New Dawn	25 −16%	27−30 +16%
Hitman 3	25 −16%	27−30 +16%
Horizon Zero Dawn	76 −124%	170−180 +124%
Metro Exodus	41 −7.3%	40−45 +7.3%
The Witcher 3: Wild Hunt	35 −25.7%	44 +25.7%

4K
Ultra Preset

Assassin's Creed Odyssey	22 −31.8%	29 +31.8%
Assassin's Creed Valhalla	13 −108%	27 +108%
Call of Duty: Modern Warfare	19 −15.8%	21−24 +15.8%
Cyberpunk 2077	10 −40%	14 +40%
Far Cry 5	18 −11.1%	20−22 +11.1%
Forza Horizon 4	35−40 −106%	74 +106%
Shadow of the Tomb Raider	30−35 −57.6%	52 +57.6%
Watch Dogs: Legion	13 −61.5%	21 +61.5%

4K
Epic Preset

Red Dead Redemption 2

−14.8%

30−35
+14.8%

This is how GTX 1660 Ti Mobile and RX 6600M compete in popular games:

RX 6600M is 13% faster in 1080p
GTX 1660 Ti Mobile is 9% faster in 1440p
GTX 1660 Ti Mobile is 3% faster in 4K

Here's the range of performance differences observed across popular games:

in Watch Dogs: Legion, with 1080p resolution and the Medium Preset, the GTX 1660 Ti Mobile is 83% faster.
in Horizon Zero Dawn, with 4K resolution and the High Preset, the RX 6600M is 124% faster.

All in all, in popular games:

GTX 1660 Ti Mobile is ahead in 16 tests (22%)
RX 6600M is ahead in 56 tests (78%)

Pros & cons summary

Performance score	28.90	35.86
Recency	23 April 2019	31 May 2021
Maximum RAM amount	6 GB	8 GB
Chip lithography	12 nm	7 nm
Power consumption (TDP)	80 Watt	100 Watt

GTX 1660 Ti Mobile has 25% lower power consumption.

RX 6600M, on the other hand, has a 24.1% higher aggregate performance score, an age advantage of 2 years, a 33.3% higher maximum VRAM amount, and a 71.4% more advanced lithography process.

The Radeon RX 6600M is our recommended choice as it beats the GeForce GTX 1660 Ti Mobile in performance tests.

Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.