Radeon RX 6550S vs HD 6450 GDDR5
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 1191 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 2.54 | no data |
| Architecture | Terascale 2 (2009−2015) | RDNA 2.0 (2020−2025) |
| GPU code name | Caicos | Navi 24 |
| Market segment | Desktop | Laptop |
| Release date | 18 April 2011 (15 years ago) | 4 January 2023 (3 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 | 160 | 1024 |
| Core clock speed | 750 MHz | 2000 MHz |
| Boost clock speed | no data | 2400 MHz |
| Number of transistors | no data | 5,400 million |
| Manufacturing process technology | 40 nm | 6 nm |
| Power consumption (TDP) | 27 Watt | 50 Watt |
| Texture fill rate | no data | 153.6 |
| Floating-point processing power | no data | 4.915 TFLOPS |
| ROPs | no data | 32 |
| TMUs | no data | 64 |
| Ray Tracing Cores | no data | 16 |
| L0 Cache | no data | 256 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).
| Laptop size | no data | medium sized |
| Interface | no data | PCIe 4.0 x4 |
| 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 | GDDR5 | GDDR6 |
| Maximum RAM amount | 1 GB | 4 GB |
| Memory bus width | 64 Bit | 64 Bit |
| Memory clock speed | 900 MHz | 2000 MHz |
| Memory bandwidth | no data | 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 | no data | Portable Device Dependent |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 11 | 12 Ultimate (12_2) |
| Shader Model | no data | 6.7 |
| OpenGL | no data | 4.6 |
| OpenCL | no data | 2.2 |
| Vulkan | - | 1.3 |
Pros & cons summary
| Recency | 18 April 2011 | 4 January 2023 |
| Maximum RAM amount | 1 GB | 4 GB |
| Chip lithography | 40 nm | 6 nm |
| Power consumption (TDP) | 27 Watt | 50 Watt |
HD 6450 GDDR5 has 85% lower power consumption.
RX 6550S, on the other hand, has an age advantage of 11 years, a 300% higher maximum VRAM amount, and a 567% more advanced lithography process.
We couldn't decide between Radeon HD 6450 GDDR5 and Radeon RX 6550S. We've got no test results to judge.
Be aware that Radeon HD 6450 GDDR5 is a desktop graphics card while Radeon RX 6550S is a notebook one.
Other comparisons
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
