GeForce RTX 4090 Mobile vs GT 820M
Aggregate performance score
We've compared GeForce GT 820M and GeForce RTX 4090 Mobile, covering specs and all relevant benchmarks.
RTX 4090 Mobile outperforms GT 820M by a whopping 4918% based on our aggregate benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1004 | 20 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 6.59 | 41.32 |
| Architecture | Fermi 2.0 (2010−2014) | Ada Lovelace (2022−2024) |
| GPU code name | GF117 | AD103 |
| Market segment | Laptop | Laptop |
| Release date | 27 November 2013 (11 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 | 96 | 9728 |
| Core clock speed | 775 MHz | 1335 MHz |
| Boost clock speed | no data | 1695 MHz |
| Number of transistors | 585 million | 45,900 million |
| Manufacturing process technology | 28 nm | 4 nm |
| Power consumption (TDP) | 15 Watt | 120 Watt |
| Texture fill rate | 12.40 | 515.3 |
| Floating-point processing power | 0.2976 TFLOPS | 32.98 TFLOPS |
| ROPs | 8 | 112 |
| TMUs | 16 | 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 2.0 x16 | PCIe 4.0 x16 |
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 | 1 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 | no data | - |
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 compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 12 Ultimate (12_2) |
| Shader Model | 5.1 | 6.7 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.1 | 3.0 |
| Vulkan | N/A | 1.3 |
| CUDA | 2.1 | 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.
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.
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 | 3−4
−5767%
| 176
+5767%
|
| 1440p | 2−3
−6550%
| 133
+6550%
|
| 4K | 1−2
−8000%
| 81
+8000%
|
FPS performance in popular games
Full HD
Low Preset
| Counter-Strike 2 | 220
+0%
|
220
+0%
|
| Cyberpunk 2077 | 156
+0%
|
156
+0%
|
Full HD
Medium Preset
| Battlefield 5 | 110−120
+0%
|
110−120
+0%
|
| Counter-Strike 2 | 143
+0%
|
143
+0%
|
| Cyberpunk 2077 | 71
+0%
|
71
+0%
|
| Forza Horizon 4 | 398
+0%
|
398
+0%
|
| Forza Horizon 5 | 200
+0%
|
200
+0%
|
| Metro Exodus | 148
+0%
|
148
+0%
|
| Red Dead Redemption 2 | 130−140
+0%
|
130−140
+0%
|
| Valorant | 350−400
+0%
|
350−400
+0%
|
Full HD
High Preset
| Battlefield 5 | 110−120
+0%
|
110−120
+0%
|
| Counter-Strike 2 | 132
+0%
|
132
+0%
|
| Cyberpunk 2077 | 68
+0%
|
68
+0%
|
| Dota 2 | 174
+0%
|
174
+0%
|
| Far Cry 5 | 136
+0%
|
136
+0%
|
| Fortnite | 280−290
+0%
|
280−290
+0%
|
| Forza Horizon 4 | 387
+0%
|
387
+0%
|
| Forza Horizon 5 | 180−190
+0%
|
180−190
+0%
|
| Grand Theft Auto V | 162
+0%
|
162
+0%
|
| Metro Exodus | 138
+0%
|
138
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 210−220
+0%
|
210−220
+0%
|
| Red Dead Redemption 2 | 130−140
+0%
|
130−140
+0%
|
| The Witcher 3: Wild Hunt | 170−180
+0%
|
170−180
+0%
|
| Valorant | 262
+0%
|
262
+0%
|
| World of Tanks | 270−280
+0%
|
270−280
+0%
|
Full HD
Ultra Preset
| Battlefield 5 | 110−120
+0%
|
110−120
+0%
|
| Counter-Strike 2 | 123
+0%
|
123
+0%
|
| Cyberpunk 2077 | 63
+0%
|
63
+0%
|
| Dota 2 | 187
+0%
|
187
+0%
|
| Far Cry 5 | 130−140
+0%
|
130−140
+0%
|
| Forza Horizon 4 | 369
+0%
|
369
+0%
|
| Forza Horizon 5 | 179
+0%
|
179
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 210−220
+0%
|
210−220
+0%
|
| Valorant | 350−400
+0%
|
350−400
+0%
|
1440p
High Preset
| Dota 2 | 138
+0%
|
138
+0%
|
| Grand Theft Auto V | 139
+0%
|
139
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 160−170
+0%
|
160−170
+0%
|
| Red Dead Redemption 2 | 90−95
+0%
|
90−95
+0%
|
| World of Tanks | 516
+0%
|
516
+0%
|
1440p
Ultra Preset
| Battlefield 5 | 85−90
+0%
|
85−90
+0%
|
| Cyberpunk 2077 | 47
+0%
|
47
+0%
|
| Far Cry 5 | 160−170
+0%
|
160−170
+0%
|
| Forza Horizon 4 | 294
+0%
|
294
+0%
|
| Forza Horizon 5 | 140−150
+0%
|
140−150
+0%
|
| Metro Exodus | 128
+0%
|
128
+0%
|
| The Witcher 3: Wild Hunt | 164
+0%
|
164
+0%
|
| Valorant | 300−350
+0%
|
300−350
+0%
|
4K
High Preset
| Counter-Strike 2 | 63
+0%
|
63
+0%
|
| Dota 2 | 172
+0%
|
172
+0%
|
| Grand Theft Auto V | 174
+0%
|
174
+0%
|
| Metro Exodus | 82
+0%
|
82
+0%
|
| PLAYERUNKNOWN'S BATTLEGROUNDS | 200−210
+0%
|
200−210
+0%
|
| Red Dead Redemption 2 | 60−65
+0%
|
60−65
+0%
|
| The Witcher 3: Wild Hunt | 174
+0%
|
174
+0%
|
| World of Tanks | 314
+0%
|
314
+0%
|
4K
Ultra Preset
| Battlefield 5 | 90−95
+0%
|
90−95
+0%
|
| Counter-Strike 2 | 21
+0%
|
21
+0%
|
| Cyberpunk 2077 | 24
+0%
|
24
+0%
|
| Dota 2 | 179
+0%
|
179
+0%
|
| Far Cry 5 | 100−110
+0%
|
100−110
+0%
|
| Fortnite | 95−100
+0%
|
95−100
+0%
|
| Forza Horizon 4 | 156
+0%
|
156
+0%
|
| Forza Horizon 5 | 85−90
+0%
|
85−90
+0%
|
| Valorant | 180−190
+0%
|
180−190
+0%
|
This is how GT 820M and RTX 4090 Mobile compete in popular games:
- RTX 4090 Mobile is 5767% faster in 1080p
- RTX 4090 Mobile is 6550% faster in 1440p
- RTX 4090 Mobile is 8000% faster in 4K
All in all, in popular games:
- there's a draw in 64 tests (100%)
Pros & cons summary
| Performance score | 1.37 | 68.75 |
| Recency | 27 November 2013 | 3 January 2023 |
| Maximum RAM amount | 1 GB | 16 GB |
| Chip lithography | 28 nm | 4 nm |
| Power consumption (TDP) | 15 Watt | 120 Watt |
GT 820M has 700% lower power consumption.
RTX 4090 Mobile, on the other hand, has a 4918.2% higher aggregate performance score, an age advantage of 9 years, a 1500% higher maximum VRAM amount, and a 600% more advanced lithography process.
The GeForce RTX 4090 Mobile is our recommended choice as it beats the GeForce GT 820M in performance tests.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Other comparisons
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
