Radeon RX 6900 XTX vs 540 Mobile
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Architecture | GCN 4.0 (2016−2020) | RDNA 2.0 (2020−2022) |
| GPU code name | Lexa | Navi 21 |
| Market segment | Laptop | Desktop |
| Release date | 26 March 2019 (5 years ago) | 28 October 2020 (3 years ago) |
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 | 512 | 5120 |
| Boost clock speed | 1124 MHz | 2435 MHz |
| Number of transistors | 2,200 million | 26,800 million |
| Manufacturing process technology | 14 nm | 7 nm |
| Power consumption (TDP) | 50 Watt | 330 Watt |
| Texture fill rate | 35.97 | 779.2 |
Form factor & compatibility
Information on Radeon 540 Mobile and Radeon RX 6900 XTX 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 x8 | PCIe 4.0 x16 |
| Length | no data | 267 mm |
| Width | no data | 2-slot |
| Supplementary power connectors | no data | 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 | GDDR5 | GDDR6 |
| Maximum RAM amount | 2 GB | 16 GB |
| Memory bus width | 64 Bit | 256 Bit |
| Memory clock speed | 6000 MHz | 18 GB/s |
| Memory bandwidth | 48 GB/s | 576.0 GB/s |
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, 2x DisplayPort 1.4a, 1x USB Type-C |
| HDMI | no data | + |
API compatibility
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (12_0) | 12 Ultimate (12_2) |
| Shader Model | 6.4 | 6.7 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 2.1 |
| Vulkan | 1.2.131 | 1.3 |
Pros & cons summary
| Recency | 26 March 2019 | 28 October 2020 |
| Maximum RAM amount | 2 GB | 16 GB |
| Chip lithography | 14 nm | 7 nm |
| Power consumption (TDP) | 50 Watt | 330 Watt |
We couldn't decide between Radeon 540 Mobile and Radeon RX 6900 XTX. We've got no test results to judge.
Be aware that Radeon 540 Mobile is a notebook card while Radeon RX 6900 XTX 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
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