Radeon RX 6450M vs ATI X1900 XT
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | 373 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | no data | 24.30 |
| Architecture | R500 (2005−2007) | RDNA 2.0 (2020−2025) |
| GPU code name | R580 | Navi 24 |
| Market segment | Desktop | Laptop |
| Release date | 24 January 2006 (20 years ago) | 4 January 2023 (3 years ago) |
| Launch price (MSRP) | $299 | no data |
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 | 625 MHz | 2000 MHz |
| Boost clock speed | no data | 2460 MHz |
| Number of transistors | 384 million | 5,400 million |
| Manufacturing process technology | 90 nm | 6 nm |
| Power consumption (TDP) | 100 Watt | 50 Watt |
| Texture fill rate | 10.00 | 118.1 |
| Floating-point processing power | no data | 3.779 TFLOPS |
| ROPs | 16 | 32 |
| TMUs | 16 | 48 |
| Ray Tracing Cores | no data | 12 |
| L0 Cache | no data | 192 KB |
| L1 Cache | no data | 256 KB |
| L2 Cache | no data | 1024 KB |
| L3 Cache | no data | 16 MB |
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 x4 |
| Length | 242 mm | no data |
| Width | 2-slot | no data |
| Supplementary power connectors | 1x 6-pin | 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 | 725 MHz | 2000 MHz |
| Memory bandwidth | 46.4 GB/s | 128.0 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, 1x S-Video | Portable Device Dependent |
API and SDK support
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 | 6.7 |
| OpenGL | 2.1 (full) 3.0 (partial) | 4.6 |
| OpenCL | N/A | 2.2 |
| Vulkan | N/A | 1.3 |
Pros & cons summary
| Recency | 24 January 2006 | 4 January 2023 |
| Maximum RAM amount | 256 MB | 4 GB |
| Chip lithography | 90 nm | 6 nm |
| Power consumption (TDP) | 100 Watt | 50 Watt |
RX 6450M has an age advantage of 16 years, a 1500% higher maximum VRAM amount, a 1400% more advanced lithography process, and 100% lower power consumption.
We couldn't decide between Radeon X1900 XT and Radeon RX 6450M. We've got no test results to judge.
Be aware that Radeon X1900 XT is a desktop graphics card while Radeon RX 6450M is a notebook one.
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