GeForce RTX 4090 Mobile vs Radeon 620

Place in the ranking	850	20
Place by popularity	not in top-100	not in top-100
Power efficiency	3.31	41.23
Architecture	GCN 3.0 (2014−2019)	Ada Lovelace (2022−2024)
GPU code name	Polaris 24	AD103
Market segment	Laptop	Laptop
Release date	13 May 2019 (5 years ago)	3 January 2023 (2 years ago)

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	384	9728
Core clock speed	730 MHz	1335 MHz
Boost clock speed	1024 MHz	1695 MHz
Number of transistors	1,550 million	45,900 million
Manufacturing process technology	28 nm	4 nm
Power consumption (TDP)	50 Watt	120 Watt
Texture fill rate	24.58	515.3
Floating-point processing power	0.7864 TFLOPS	32.98 TFLOPS
ROPs	8	112
TMUs	24	304
Tensor Cores	no data	304
Ray Tracing Cores	no data	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 3.0 x8	PCIe 4.0 x16
Supplementary power connectors	None	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	DDR3	GDDR6
Maximum RAM amount	2 GB	16 GB
Memory bus width	64 Bit	256 Bit
Memory clock speed	900 MHz	2250 MHz
Memory bandwidth	14.4 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

No outputs

Portable Device Dependent

API and SDK compatibility

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

DirectX	12 (12_0)	12 Ultimate (12_2)
Shader Model	6.3	6.7
OpenGL	4.6	4.6
OpenCL	2.0	3.0
Vulkan	1.2.131	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.

Radeon 620 2.34

RTX 4090 Mobile 70.06
+2894%

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.

Radeon 620 922

RTX 4090 Mobile 27665
+2901%

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.

Radeon 620 1730

RTX 4090 Mobile 46191
+2570%

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	5−6 −3420%	176 +3420%
1440p	4−5 −3225%	133 +3225%
4K	2−3 −3950%	81 +3950%

FPS performance in popular games

Full HD
Low Preset

Counter-Strike 2	10−12 −1900%	220 +1900%
Cyberpunk 2077	6−7 −2500%	156 +2500%

Full HD
Medium Preset

Battlefield 5	5−6 −2240%	110−120 +2240%
Counter-Strike 2	10−12 −1200%	143 +1200%
Cyberpunk 2077	6−7 −1083%	71 +1083%
Forza Horizon 4	12−14 −3217%	398 +3217%
Forza Horizon 5	1−2 −19900%	200 +19900%
Metro Exodus	3−4 −4833%	148 +4833%
Red Dead Redemption 2	9−10 −1356%	130−140 +1356%
Valorant	1−2 −37200%	350−400 +37200%

Full HD
High Preset

Battlefield 5	5−6 −2240%	110−120 +2240%
Counter-Strike 2	10−12 −1100%	132 +1100%
Cyberpunk 2077	6−7 −1033%	68 +1033%
Dota 2	6−7 −2800%	174 +2800%
Far Cry 5	14−16 −807%	136 +807%
Fortnite	12−14 −2092%	280−290 +2092%
Forza Horizon 4	12−14 −3125%	387 +3125%
Forza Horizon 5	1−2 −18600%	180−190 +18600%
Grand Theft Auto V	6−7 −2600%	162 +2600%
Metro Exodus	3−4 −4500%	138 +4500%
PLAYERUNKNOWN'S BATTLEGROUNDS	21−24 −835%	210−220 +835%
Red Dead Redemption 2	9−10 −1356%	130−140 +1356%
The Witcher 3: Wild Hunt	10−11 −1640%	170−180 +1640%
Valorant	1−2 −26100%	262 +26100%
World of Tanks	40−45 −534%	270−280 +534%

Full HD
Ultra Preset

Battlefield 5	5−6 −2240%	110−120 +2240%
Counter-Strike 2	10−12 −1018%	123 +1018%
Cyberpunk 2077	6−7 −950%	63 +950%
Dota 2	6−7 −3017%	187 +3017%
Far Cry 5	14−16 −800%	130−140 +800%
Forza Horizon 4	12−14 −2975%	369 +2975%
Forza Horizon 5	1−2 −17800%	179 +17800%
PLAYERUNKNOWN'S BATTLEGROUNDS	21−24 −835%	210−220 +835%
Valorant	1−2 −37200%	350−400 +37200%

1440p
High Preset

Dota 2	0−1	138
Grand Theft Auto V	1−2 −13800%	139 +13800%
PLAYERUNKNOWN'S BATTLEGROUNDS	14−16 −1067%	170−180 +1067%
Red Dead Redemption 2	1−2 −9200%	90−95 +9200%
World of Tanks	16−18 −3125%	516 +3125%

1440p
Ultra Preset

Battlefield 5	1−2 −8600%	85−90 +8600%
Cyberpunk 2077	4−5 −1075%	47 +1075%
Far Cry 5	7−8 −2186%	160−170 +2186%
Forza Horizon 4	0−1	294
Forza Horizon 5	2−3 −6850%	130−140 +6850%
The Witcher 3: Wild Hunt	5−6 −3180%	164 +3180%
Valorant	8−9 −3900%	300−350 +3900%

4K
High Preset

Dota 2	16−18 −975%	172 +975%
Grand Theft Auto V	14−16 −1060%	174 +1060%
PLAYERUNKNOWN'S BATTLEGROUNDS	7−8 −2886%	200−210 +2886%
Red Dead Redemption 2	1−2 −6300%	60−65 +6300%
The Witcher 3: Wild Hunt	14−16 −1060%	174 +1060%

4K
Ultra Preset

Battlefield 5	2−3 −4450%	90−95 +4450%
Cyberpunk 2077	2−3 −1100%	24 +1100%
Dota 2	16−18 −1019%	179 +1019%
Far Cry 5	2−3 −5150%	100−110 +5150%
Fortnite	1−2 −9500%	95−100 +9500%
Forza Horizon 5	0−1	85−90
Valorant	2−3 −9150%	180−190 +9150%

1440p
Ultra Preset

Metro Exodus

128

+0%

128

+0%

4K
High Preset

Counter-Strike 2	63 +0%	63 +0%
Metro Exodus	82 +0%	82 +0%
World of Tanks	314 +0%	314 +0%

4K
Ultra Preset

Counter-Strike 2	21 +0%	21 +0%
Forza Horizon 4	156 +0%	156 +0%

This is how Radeon 620 and RTX 4090 Mobile compete in popular games:

RTX 4090 Mobile is 3420% faster in 1080p
RTX 4090 Mobile is 3225% faster in 1440p
RTX 4090 Mobile is 3950% faster in 4K

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

in Valorant, with 1080p resolution and the Medium Preset, the RTX 4090 Mobile is 37200% faster.

All in all, in popular games:

RTX 4090 Mobile is ahead in 55 tests (90%)
there's a draw in 6 tests (10%)

Pros & cons summary

Performance score	2.34	70.06
Recency	13 May 2019	3 January 2023
Maximum RAM amount	2 GB	16 GB
Chip lithography	28 nm	4 nm
Power consumption (TDP)	50 Watt	120 Watt

Radeon 620 has 140% lower power consumption.

RTX 4090 Mobile, on the other hand, has a 2894% higher aggregate performance score, an age advantage of 3 years, a 700% higher maximum VRAM amount, and a 600% more advanced lithography process.

The GeForce RTX 4090 Mobile is our recommended choice as it beats the Radeon 620 in performance tests.

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