Radeon RX 6900 vs ATI Mobility X1800 XT
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | 34 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | no data | 19.06 |
| Architecture | R500 (2005−2007) | RDNA 2.0 (2020−2025) |
| GPU code name | M58 | Navi 21 |
| Market segment | Laptop | Desktop |
| Release date | 1 March 2006 (19 years ago) | 28 October 2020 (4 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 | no data | 4608 |
| Core clock speed | 550 MHz | no data |
| Boost clock speed | no data | 2105 MHz |
| Number of transistors | 321 million | 23,000 million |
| Manufacturing process technology | 90 nm | 7 nm |
| Power consumption (TDP) | no data | 255 Watt |
| Texture fill rate | 8.800 | 606.2 |
| Floating-point processing power | no data | 19.4 TFLOPS |
| ROPs | 16 | 64 |
| TMUs | 16 | 288 |
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).
| Interface | PCIe 1.0 x16 | PCIe 4.0 x16 |
| 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 | GDDR3 | GDDR6 |
| Maximum RAM amount | 256 MB | 16 GB |
| Memory bus width | 256 Bit | 256 Bit |
| Memory clock speed | 650 MHz | 16 GB/s |
| Memory bandwidth | 41.6 GB/s | 512.0 GB/s |
| Resizable BAR | - | + |
Connectivity and outputs
This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.
| Display Connectors | No outputs | 1x HDMI, 2x DisplayPort, 1x USB Type-C |
| HDMI | - | + |
API and SDK compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 9.0c (9_3) | 12 Ultimate (12_2) |
| Shader Model | 3.0 | 6.5 |
| OpenGL | 2.0 | 4.6 |
| OpenCL | N/A | 2.0 |
| Vulkan | N/A | 1.2 |
Pros & cons summary
| Recency | 1 March 2006 | 28 October 2020 |
| Maximum RAM amount | 256 MB | 16 GB |
| Chip lithography | 90 nm | 7 nm |
RX 6900 has an age advantage of 14 years, a 6300% higher maximum VRAM amount, and a 1185.7% more advanced lithography process.
We couldn't decide between Mobility Radeon X1800 XT and Radeon RX 6900. We've got no test results to judge.
Be aware that Mobility Radeon X1800 XT is a notebook graphics card while Radeon RX 6900 is a desktop one.
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