RTX A4000 Mobile vs ATI Radeon X800 XT Mac Edition
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
Place in the ranking | not rated | 155 |
Place by popularity | not in top-100 | not in top-100 |
Power efficiency | no data | 23.36 |
Architecture | R400 (2004−2008) | Ampere (2020−2025) |
GPU code name | R423 | GA104 |
Market segment | Desktop | Mobile workstation |
Release date | 1 December 2004 (20 years ago) | 12 April 2021 (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 | 5120 |
Core clock speed | 475 MHz | 1140 MHz |
Boost clock speed | no data | 1680 MHz |
Number of transistors | 160 million | 17,400 million |
Manufacturing process technology | 130 nm | 8 nm |
Power consumption (TDP) | 54 Watt | 115 Watt |
Texture fill rate | 7.600 | 268.8 |
Floating-point processing power | no data | 17.2 TFLOPS |
ROPs | 16 | 80 |
TMUs | 16 | 160 |
Tensor Cores | no data | 160 |
Ray Tracing Cores | no data | 40 |
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 | AGP Pro 8x | PCIe 4.0 x16 |
Width | 1-slot | no data |
Supplementary power connectors | None | no data |
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 | 8 GB |
Memory bus width | 256 Bit | 256 Bit |
Memory clock speed | 500 MHz | 1500 MHz |
Memory bandwidth | 32 GB/s | 384.0 GB/s |
Shared memory | - | - |
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 | 2x DVI | Portable Device Dependent |
API and SDK compatibility
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 | 6.8 |
OpenGL | 2.0 | 4.6 |
OpenCL | N/A | 3.0 |
Vulkan | N/A | 1.3 |
CUDA | - | 8.6 |
DLSS | - | + |
Pros & cons summary
Recency | 1 December 2004 | 12 April 2021 |
Maximum RAM amount | 256 MB | 8 GB |
Chip lithography | 130 nm | 8 nm |
Power consumption (TDP) | 54 Watt | 115 Watt |
ATI X800 XT Mac Edition has 113% lower power consumption.
RTX A4000 Mobile, on the other hand, has an age advantage of 16 years, a 3100% higher maximum VRAM amount, and a 1525% more advanced lithography process.
We couldn't decide between Radeon X800 XT Mac Edition and RTX A4000 Mobile. We've got no test results to judge.
Be aware that Radeon X800 XT Mac Edition is a desktop graphics card while RTX A4000 Mobile is a mobile workstation one.
Other comparisons
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