GeForce RTX 4090 Mobile vs Radeon RX 6600 XT

Place in the ranking	88	18
Place by popularity	79	not in top-100
Cost-effectiveness evaluation	62.48	no data
Power efficiency	18.51	41.42
Architecture	RDNA 2.0 (2020−2024)	Ada Lovelace (2022−2024)
GPU code name	Navi 23	AD103
Market segment	Desktop	Laptop
Release date	30 July 2021 (3 years ago)	3 January 2023 (2 years ago)
Launch price (MSRP)	$379	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	2048	9728
Core clock speed	1968 MHz	1335 MHz
Boost clock speed	2589 MHz	1695 MHz
Number of transistors	11,060 million	45,900 million
Manufacturing process technology	7 nm	4 nm
Power consumption (TDP)	160 Watt	120 Watt
Texture fill rate	331.4	515.3
Floating-point processing power	10.6 TFLOPS	32.98 TFLOPS
ROPs	64	112
TMUs	128	304
Tensor Cores	no data	304
Ray Tracing Cores	32	76

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

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	8 GB	16 GB
Memory bus width	128 Bit	256 Bit
Memory clock speed	2000 MHz	2250 MHz
Memory bandwidth	256.0 GB/s	576.0 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	1x HDMI, 2x DisplayPort	Portable Device Dependent
HDMI	+	-

API compatibility

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

DirectX	12.0 Ultimate (12_2)	12 Ultimate (12_2)
Shader Model	6.5	6.7
OpenGL	4.6	4.6
OpenCL	2.1	3.0
Vulkan	1.2	1.3
CUDA	-	8.9

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.

RX 6600 XT 42.95

RTX 4090 Mobile 72.07
+67.8%

Passmark

This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

RX 6600 XT 16509

RTX 4090 Mobile 27699
+67.8%

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.

RX 6600 XT 39051

RTX 4090 Mobile 64746
+65.8%

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.

RX 6600 XT 88163

RTX 4090 Mobile 113387
+28.6%

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.

RX 6600 XT 28342

RTX 4090 Mobile 46191
+63%

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.

RX 6600 XT 156297
+9.2%

RTX 4090 Mobile 143162

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.

RX 6600 XT 472371

RTX 4090 Mobile 554375
+17.4%

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	134 −31.3%	176 +31.3%
1440p	78 −70.5%	133 +70.5%
4K	44 −84.1%	81 +84.1%

Cost per frame, $

1080p	2.83	no data
1440p	4.86	no data
4K	8.61	no data

FPS performance in popular games

Full HD
Low Preset

Counter-Strike 2	120 −83.3%	220 +83.3%
Cyberpunk 2077	79 −97.5%	156 +97.5%

Full HD
Medium Preset

Battlefield 5	100−110 −7.3%	110−120 +7.3%
Counter-Strike 2	90−95 −55.4%	143 +55.4%
Cyberpunk 2077	75 +5.6%	71 −5.6%
Forza Horizon 4	257 −54.9%	398 +54.9%
Forza Horizon 5	123 −62.6%	200 +62.6%
Metro Exodus	131 −13%	148 +13%
Red Dead Redemption 2	80−85 −59%	130−140 +59%
Valorant	170−180 −116%	350−400 +116%

Full HD
High Preset

Battlefield 5	100−110 −7.3%	110−120 +7.3%
Counter-Strike 2	90−95 −43.5%	132 +43.5%
Cyberpunk 2077	75 +10.3%	68 −10.3%
Dota 2	147 −18.4%	174 +18.4%
Far Cry 5	65 −109%	136 +109%
Fortnite	180−190 −56.6%	280−290 +56.6%
Forza Horizon 4	209 −85.2%	387 +85.2%
Forza Horizon 5	115 −62.6%	180−190 +62.6%
Grand Theft Auto V	135 −20%	162 +20%
Metro Exodus	100 −38%	138 +38%
PLAYERUNKNOWN'S BATTLEGROUNDS	200−210 −3.9%	210−220 +3.9%
Red Dead Redemption 2	80−85 −59%	130−140 +59%
The Witcher 3: Wild Hunt	150−160 −12.3%	170−180 +12.3%
Valorant	170−180 −51.4%	262 +51.4%
World of Tanks	270−280 +0%	270−280 +0%

Full HD
Ultra Preset

Battlefield 5	100−110 −7.3%	110−120 +7.3%
Counter-Strike 2	67 −83.6%	123 +83.6%
Cyberpunk 2077	66 +4.8%	63 −4.8%
Dota 2	120 −55.8%	187 +55.8%
Far Cry 5	100−110 −34.7%	130−140 +34.7%
Forza Horizon 4	183 −102%	369 +102%
Forza Horizon 5	97 −84.5%	179 +84.5%
PLAYERUNKNOWN'S BATTLEGROUNDS	200−210 −3.9%	210−220 +3.9%
Valorant	170−180 −116%	350−400 +116%

1440p
High Preset

Dota 2	68 −103%	138 +103%
Grand Theft Auto V	68 −104%	139 +104%
PLAYERUNKNOWN'S BATTLEGROUNDS	170−180 +0%	170−180 +0%
Red Dead Redemption 2	40−45 −111%	90−95 +111%
World of Tanks	270−280 −89.7%	516 +89.7%

1440p
Ultra Preset

Battlefield 5	75−80 −13%	85−90 +13%
Counter-Strike 2	39 −131%	90 +131%
Cyberpunk 2077	38 −23.7%	47 +23.7%
Far Cry 5	130−140 −15.1%	160−170 +15.1%
Forza Horizon 4	118 −149%	294 +149%
Forza Horizon 5	71 −97.2%	140−150 +97.2%
Metro Exodus	98 −30.6%	128 +30.6%
The Witcher 3: Wild Hunt	75−80 −113%	164 +113%
Valorant	140−150 −129%	300−350 +129%

4K
High Preset

Counter-Strike 2	45−50 −37%	63 +37%
Dota 2	64 −169%	172 +169%
Grand Theft Auto V	64 −172%	174 +172%
Metro Exodus	34 −141%	82 +141%
PLAYERUNKNOWN'S BATTLEGROUNDS	140−150 −48.2%	200−210 +48.2%
Red Dead Redemption 2	27−30 −129%	60−65 +129%
The Witcher 3: Wild Hunt	64 −172%	174 +172%

4K
Ultra Preset

Battlefield 5	50−55 −78.4%	90−95 +78.4%
Counter-Strike 2	45−50 −97.8%	90−95 +97.8%
Cyberpunk 2077	13 −84.6%	24 +84.6%
Dota 2	86 −108%	179 +108%
Far Cry 5	65−70 −59.1%	100−110 +59.1%
Fortnite	60−65 −52.4%	95−100 +52.4%
Forza Horizon 4	61 −156%	156 +156%
Forza Horizon 5	36 −144%	85−90 +144%
Valorant	75−80 −147%	180−190 +147%

4K
High Preset

World of Tanks

314

+0%

314

+0%

This is how RX 6600 XT and RTX 4090 Mobile compete in popular games:

RTX 4090 Mobile is 31% faster in 1080p
RTX 4090 Mobile is 71% faster in 1440p
RTX 4090 Mobile is 84% faster in 4K

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

in Cyberpunk 2077, with 1080p resolution and the High Preset, the RX 6600 XT is 10% faster.
in Grand Theft Auto V, with 4K resolution and the High Preset, the RTX 4090 Mobile is 172% faster.

All in all, in popular games:

RX 6600 XT is ahead in 3 tests (5%)
RTX 4090 Mobile is ahead in 59 tests (91%)
there's a draw in 3 tests (5%)

Pros & cons summary

Performance score	42.95	72.07
Recency	30 July 2021	3 January 2023
Maximum RAM amount	8 GB	16 GB
Chip lithography	7 nm	4 nm
Power consumption (TDP)	160 Watt	120 Watt

RTX 4090 Mobile has a 67.8% higher aggregate performance score, an age advantage of 1 year, a 100% higher maximum VRAM amount, a 75% more advanced lithography process, and 33.3% lower power consumption.

The GeForce RTX 4090 Mobile is our recommended choice as it beats the Radeon RX 6600 XT in performance tests.

Be aware that Radeon RX 6600 XT is a desktop card while GeForce RTX 4090 Mobile is a notebook one.

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