GeForce RTX 4090 Mobile vs ATI Radeon Xpress X1270
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | 18 |
| Place by popularity | not in top-100 | not in top-100 |
| Architecture | no data | Ada Lovelace (2022−2024) |
| GPU code name | M690T | GN21-X11 |
| Market segment | Laptop | Laptop |
| Release date | 1 February 2007 (17 years ago) | 3 January 2023 (1 year 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 | 4 | 9728 |
| Boost clock speed | 400 MHz | 2040 MHz |
| Number of transistors | no data | 45,900 million |
| Manufacturing process technology | 80 nm | 5 nm |
| Power consumption (TDP) | no data | 150 Watt (80 - 150 Watt TGP) |
| Texture fill rate | no data | 515.3 |
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 | no data | 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 | no data | GDDR6 |
| Maximum RAM amount | 128 MB | 16 GB |
| Memory bus width | no data | 256 Bit |
| Memory clock speed | no data | 20000 MHz |
| Memory bandwidth | no data | 576.0 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 data | Portable Device Dependent |
API compatibility
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | no data | 12 Ultimate (12_2) |
| Shader Model | no data | 6.7 |
| OpenGL | no data | 4.6 |
| OpenCL | no data | 3.0 |
| Vulkan | - | 1.3 |
| CUDA | - | 8.9 |
Pros & cons summary
| Recency | 1 February 2007 | 3 January 2023 |
| Maximum RAM amount | 128 MB | 16 GB |
| Chip lithography | 80 nm | 5 nm |
RTX 4090 Mobile has an age advantage of 15 years, a 12700% higher maximum VRAM amount, and a 1500% more advanced lithography process.
We couldn't decide between Radeon Xpress X1270 and GeForce RTX 4090 Mobile. We've got no test results to judge.
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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