Radeon RX 6600 XT vs GeForce GTX 1660 Ti Mobile

Place in the ranking	192	90
Place by popularity	not in top-100	87
Cost-effectiveness evaluation	100.00	63.45
Power efficiency	25.27	18.65
Architecture	Turing (2018−2022)	RDNA 2.0 (2020−2024)
GPU code name	TU116	Navi 23
Market segment	Laptop	Desktop
Release date	23 April 2019 (5 years ago)	30 July 2021 (3 years ago)
Launch price (MSRP)	$229	$379

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

GTX 1660 Ti Mobile has 58% better value for money than RX 6600 XT.

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	2048
Core clock speed	1455 MHz	1968 MHz
Boost clock speed	1590 MHz	2589 MHz
Number of transistors	6,600 million	11,060 million
Manufacturing process technology	12 nm	7 nm
Power consumption (TDP)	80 Watt	160 Watt
Texture fill rate	152.6	331.4
Floating-point processing power	4.884 TFLOPS	10.6 TFLOPS
ROPs	48	64
TMUs	96	128
Ray Tracing Cores	no data	32

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	no data
Interface	PCIe 3.0 x16	PCIe 4.0 x8
Length	no data	190 mm
Width	no data	2-slot
Supplementary power connectors	no data	1x 8-pin

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	2000 MHz
Memory bandwidth	288.0 GB/s	256.0 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	1x HDMI, 2x DisplayPort
HDMI	-	+

API compatibility

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

DirectX	12 (12_1)	12.0 Ultimate (12_2)
Shader Model	6.5	6.5
OpenGL	4.6	4.6
OpenCL	1.2	2.1
Vulkan	1.2.131	1.2
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 29.00

RX 6600 XT 42.80
+47.6%

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 6600 XT 39051
+94.1%

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 6600 XT 88163
+78.8%

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 6600 XT 28342
+91.3%

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 6600 XT 156297
+60.3%

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 6600 XT 472371
+12.5%

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	87 −55.2%	135 +55.2%
1440p	58 −32.8%	77 +32.8%
4K	34 −26.5%	43 +26.5%

Cost per frame, $

1080p	2.63	2.81
1440p	3.95	4.92
4K	6.74	8.81

FPS performance in popular games

Full HD
Low Preset

Cyberpunk 2077

86
+8.9%

−8.9%

Full HD
Medium Preset

Assassin's Creed Odyssey	80 −12.5%	90−95 +12.5%
Assassin's Creed Valhalla	66 −95.5%	129 +95.5%
Battlefield 5	129 −6.2%	130−140 +6.2%
Call of Duty: Modern Warfare	82 −4.9%	85−90 +4.9%
Cyberpunk 2077	68 −14.7%	78 +14.7%
Far Cry 5	98 +7.7%	90−95 −7.7%
Far Cry New Dawn	102 −2.9%	100−110 +2.9%
Forza Horizon 4	304 +52.8%	190−200 −52.8%
Hitman 3	77 −40.3%	108 +40.3%
Horizon Zero Dawn	209 +20.1%	170−180 −20.1%
Metro Exodus	126 −5.6%	130−140 +5.6%
Red Dead Redemption 2	99 +2.1%	95−100 −2.1%
Shadow of the Tomb Raider	155 −2.6%	150−160 +2.6%
Watch Dogs: Legion	225 +69.2%	130−140 −69.2%

Full HD
High Preset

Assassin's Creed Odyssey	125 +38.9%	90−95 −38.9%
Assassin's Creed Valhalla	49 −116%	106 +116%
Battlefield 5	109 −25.7%	130−140 +25.7%
Call of Duty: Modern Warfare	73 −17.8%	85−90 +17.8%
Cyberpunk 2077	54 −40.7%	76 +40.7%
Far Cry 5	77 −18.2%	90−95 +18.2%
Far Cry New Dawn	70 −50%	100−110 +50%
Forza Horizon 4	256 +28.6%	190−200 −28.6%
Hitman 3	74 −45.9%	108 +45.9%
Horizon Zero Dawn	207 +19%	170−180 −19%
Metro Exodus	104 −27.9%	130−140 +27.9%
Red Dead Redemption 2	83 −16.9%	95−100 +16.9%
Shadow of the Tomb Raider	118 −77.1%	209 +77.1%
The Witcher 3: Wild Hunt	55−60 −57.1%	85−90 +57.1%
Watch Dogs: Legion	214 +60.9%	130−140 −60.9%

Full HD
Ultra Preset

Assassin's Creed Odyssey	53 −69.8%	90−95 +69.8%
Assassin's Creed Valhalla	42 −78.6%	75 +78.6%
Call of Duty: Modern Warfare	53 −62.3%	85−90 +62.3%
Cyberpunk 2077	52 −32.7%	69 +32.7%
Far Cry 5	57 −59.6%	90−95 +59.6%
Forza Horizon 4	99 −101%	190−200 +101%
Hitman 3	63 −58.7%	100 +58.7%
Horizon Zero Dawn	90 −74.4%	157 +74.4%
Shadow of the Tomb Raider	101 −81.2%	183 +81.2%
The Witcher 3: Wild Hunt	55 −80%	99 +80%
Watch Dogs: Legion	33 −84.8%	61 +84.8%

Full HD
Epic Preset

Red Dead Redemption 2

−21.3%

95−100
+21.3%

1440p
High Preset

Battlefield 5	66 −25.8%	80−85 +25.8%
Far Cry New Dawn	46 −41.3%	65−70 +41.3%

1440p
Ultra Preset

Assassin's Creed Odyssey	36 −30.6%	45−50 +30.6%
Assassin's Creed Valhalla	32 −75%	56 +75%
Call of Duty: Modern Warfare	38 −31.6%	50−55 +31.6%
Cyberpunk 2077	25 −60%	40 +60%
Far Cry 5	36 −36.1%	45−50 +36.1%
Forza Horizon 4	182 −29.1%	230−240 +29.1%
Hitman 3	41 −63.4%	67 +63.4%
Horizon Zero Dawn	65 −78.5%	116 +78.5%
Metro Exodus	60 −63.3%	98 +63.3%
Shadow of the Tomb Raider	55−60 −103%	118 +103%
The Witcher 3: Wild Hunt	30−35 −93.9%	60−65 +93.9%
Watch Dogs: Legion	203 +0.5%	200−210 −0.5%

1440p
Epic Preset

Red Dead Redemption 2

−32.1%

70−75
+32.1%

4K
High Preset

Battlefield 5	31 −38.7%	40−45 +38.7%
Far Cry New Dawn	25 −48%	35−40 +48%
Hitman 3	25 −32%	33 +32%
Horizon Zero Dawn	76 −151%	190−200 +151%
Metro Exodus	41 −36.6%	55−60 +36.6%
The Witcher 3: Wild Hunt	35 −54.3%	54 +54.3%

4K
Ultra Preset

Assassin's Creed Odyssey	22 −36.4%	30−33 +36.4%
Assassin's Creed Valhalla	13 −115%	28 +115%
Call of Duty: Modern Warfare	19 −47.4%	27−30 +47.4%
Cyberpunk 2077	10 −40%	14 +40%
Far Cry 5	18 −38.9%	24−27 +38.9%
Forza Horizon 4	35−40 −66.7%	60−65 +66.7%
Shadow of the Tomb Raider	30−35 −84.8%	61 +84.8%
Watch Dogs: Legion	13 −84.6%	24 +84.6%

4K
Epic Preset

Red Dead Redemption 2

−44.4%

35−40
+44.4%

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

RX 6600 XT is 55% faster in 1080p
RX 6600 XT is 33% faster in 1440p
RX 6600 XT is 26% 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 69% faster.
in Horizon Zero Dawn, with 4K resolution and the High Preset, the RX 6600 XT is 151% faster.

All in all, in popular games:

GTX 1660 Ti Mobile is ahead in 11 tests (15%)
RX 6600 XT is ahead in 61 test (85%)

Pros & cons summary

Performance score	29.00	42.80
Recency	23 April 2019	30 July 2021
Maximum RAM amount	6 GB	8 GB
Chip lithography	12 nm	7 nm
Power consumption (TDP)	80 Watt	160 Watt

GTX 1660 Ti Mobile has 100% lower power consumption.

RX 6600 XT, on the other hand, has a 47.6% 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 6600 XT is our recommended choice as it beats the GeForce GTX 1660 Ti Mobile in performance tests.

Be aware that GeForce GTX 1660 Ti Mobile is a notebook card while Radeon RX 6600 XT is a desktop one.

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