RTX A400 vs ATI Mobility Radeon X800 XT
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | 400 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | no data | 22.07 |
| Architecture | R400 (2004−2008) | Ampere (2020−2025) |
| GPU code name | M28 | GA107 |
| Market segment | Laptop | Workstation |
| Release date | 1 June 2005 (20 years ago) | 16 April 2024 (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 | no data | 768 |
| Core clock speed | 480 MHz | 727 MHz |
| Boost clock speed | no data | 1762 MHz |
| Number of transistors | 160 million | 8,700 million |
| Manufacturing process technology | 130 nm | 8 nm |
| Power consumption (TDP) | no data | 50 Watt |
| Texture fill rate | 7.680 | 42.29 |
| Floating-point processing power | no data | 2.706 TFLOPS |
| ROPs | 16 | 16 |
| TMUs | 16 | 24 |
| Tensor Cores | no data | 24 |
| Ray Tracing Cores | no data | 6 |
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 x8 |
| Length | no data | 163 mm |
| Width | no data | 1-slot |
| Supplementary power connectors | no data | None |
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 | 4 GB |
| Memory bus width | 256 Bit | 64 Bit |
| Memory clock speed | 550 MHz | 1500 MHz |
| Memory bandwidth | 35.2 GB/s | 96 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 | 4x mini-DisplayPort 1.4a |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 9.0b (9_2) | 12 Ultimate (12_2) |
| Shader Model | no data | 6.7 |
| OpenGL | 2.0 | 4.6 |
| OpenCL | N/A | 3.0 |
| Vulkan | N/A | 1.3 |
| CUDA | - | 8.6 |
| DLSS | - | + |
Pros & cons summary
| Recency | 1 June 2005 | 16 April 2024 |
| Maximum RAM amount | 256 MB | 4 GB |
| Chip lithography | 130 nm | 8 nm |
RTX A400 has an age advantage of 18 years, a 1500% higher maximum VRAM amount, and a 1525% more advanced lithography process.
We couldn't decide between Mobility Radeon X800 XT and RTX A400. We've got no test results to judge.
Be aware that Mobility Radeon X800 XT is a notebook graphics card while RTX A400 is a workstation one.
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