Arc A780 vs Radeon Pro Vega 20
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 376 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 9.58 | no data |
| Architecture | GCN 5.0 (2017−2020) | Generation 12.7 (2022−2023) |
| GPU code name | Vega 12 | DG2-512 |
| Market segment | Mobile workstation | Desktop |
| Release date | 14 November 2018 (6 years ago) | 2022 (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 | 1280 | 4096 |
| Core clock speed | 815 MHz | 2200 MHz |
| Boost clock speed | 1283 MHz | 2200 MHz |
| Number of transistors | no data | 21,700 million |
| Manufacturing process technology | 14 nm | 6 nm |
| Power consumption (TDP) | 100 Watt | 200 Watt |
| Texture fill rate | 102.6 | 563.2 |
| Floating-point processing power | 3.284 TFLOPS | 18.02 TFLOPS |
| ROPs | 32 | 128 |
| TMUs | 80 | 256 |
| Tensor Cores | no data | 512 |
| 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 | large | no data |
| Interface | PCIe 3.0 x16 | PCIe 4.0 x16 |
| Width | no data | 2-slot |
| Supplementary power connectors | 1x 6-pin + 1x 8-pin | 2x 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 | HBM2 | GDDR6X |
| Maximum RAM amount | 4 GB | 16 GB |
| Memory bus width | 1024 Bit | 256 Bit |
| Memory clock speed | 740 MHz | 1093 MHz |
| Memory bandwidth | 189.4 GB/s | 559.6 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 2.1, 3x DisplayPort 2.0 |
| HDMI | - | + |
API compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (12_1) | 12 Ultimate (12_2) |
| Shader Model | 6.3 | 6.6 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 3.0 |
| Vulkan | 1.2.131 | 1.3 |
Pros & cons summary
| Maximum RAM amount | 4 GB | 16 GB |
| Chip lithography | 14 nm | 6 nm |
| Power consumption (TDP) | 100 Watt | 200 Watt |
Pro Vega 20 has 100% lower power consumption.
Arc A780, on the other hand, has a 300% higher maximum VRAM amount, and a 133.3% more advanced lithography process.
We couldn't decide between Radeon Pro Vega 20 and Arc A780. We've got no test results to judge.
Be aware that Radeon Pro Vega 20 is a mobile workstation card while Arc A780 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.
