GeForce RTX 4090 vs Radeon RX Vega 56 Mobile
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | not rated | 1 |
| Place by popularity | not in top-100 | 2 |
| Cost-effectiveness evaluation | no data | 15.14 |
| Architecture | GCN 5.0 (2017−2020) | Ada Lovelace |
| GPU code name | Vega 10 | AD102-300-A1 |
| Market segment | Laptop | Desktop |
| Release date | 1 June 2018 (5 years ago) | 20 September 2022 (1 year ago) |
| Launch price (MSRP) | no data | $1,599 |
| Current price | $841 | $1756 (1.1x MSRP) |
Cost-effectiveness evaluation
Performance to price ratio. The higher, the better.
Detailed specifications
General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 3584 | 16384 |
| Core clock speed | 1138 MHz | 2235 MHz |
| Boost clock speed | 1301 MHz | 2520 MHz |
| Number of transistors | 12,500 million | 76,300 million |
| Manufacturing process technology | 14 nm | 5 nm |
| Power consumption (TDP) | 120 Watt | 450 Watt |
| Texture fill rate | 291.4 | 1,290 |
Form factor & compatibility
Information on Radeon RX Vega 56 Mobile and GeForce RTX 4090 compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.
| Interface | PCIe 3.0 x16 | PCIe 4.0 x16 |
| Length | no data | 304 mm |
| Width | no data | 3-slot |
| Supplementary power connectors | no data | 1x 16-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 | HBM2 | GDDR6X |
| Maximum RAM amount | 8 GB | 24 GB |
| Memory bus width | 2048 Bit | 384 Bit |
| Memory clock speed | 1600 MHz | 21000 MHz |
| Memory bandwidth | 409.6 GB/s | 1,008 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 | 1x HDMI, 3x DisplayPort | 1x HDMI 2.1, 3x DisplayPort 1.4a |
| HDMI | + | + |
API compatibility
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (12_1) | 12 Ultimate (12_2) |
| Shader Model | 6.4 | 6.6 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 3.0 |
| Vulkan | 1.1.125 | 1.3 |
| CUDA | no data | 8.9 |
Pros & cons summary
| Recency | 1 June 2018 | 20 September 2022 |
| Maximum RAM amount | 8 GB | 24 GB |
| Chip lithography | 14 nm | 5 nm |
| Power consumption (TDP) | 120 Watt | 450 Watt |
We couldn't decide between Radeon RX Vega 56 Mobile and GeForce RTX 4090. We've got no test results to judge.
Be aware that Radeon RX Vega 56 Mobile is a notebook card while GeForce RTX 4090 is a desktop one.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Comparisons with similar GPUs
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
