Radeon 550X 640SP vs 840M
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 521 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Architecture | RDNA 3+ (2024) | GCN 4.0 (2016−2020) |
| GPU code name | Krackan Point | Lexa |
| Market segment | Laptop | Desktop |
| Release date | 2 June 2024 (1 year ago) | 11 April 2018 (7 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 | 256 | 640 |
| Core clock speed | no data | 1019 MHz |
| Boost clock speed | 2900 MHz | 1071 MHz |
| Number of transistors | no data | 2,200 million |
| Manufacturing process technology | 4 nm | 14 nm |
| Power consumption (TDP) | no data | 50 Watt |
| Texture fill rate | no data | 42.84 |
| Floating-point processing power | no data | 1.371 TFLOPS |
| ROPs | no data | 16 |
| TMUs | no data | 40 |
| L1 Cache | no data | 160 KB |
| L2 Cache | no data | 256 KB |
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 | medium sized | no data |
| Interface | no data | PCIe 3.0 x8 |
| Width | no data | IGP |
| 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 | no data | GDDR5 |
| Maximum RAM amount | no data | 4 GB |
| Memory bus width | no data | 64 Bit |
| Memory clock speed | 7500 MHz | 1500 MHz |
| Memory bandwidth | no data | 48 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 | 1x DVI, 1x HDMI, 1x DisplayPort |
| HDMI | - | + |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | no data | 12 (12_0) |
| Shader Model | no data | 6.4 |
| OpenGL | no data | 4.6 |
| OpenCL | no data | 2.0 |
| Vulkan | - | 1.2.131 |
Pros & cons summary
| Recency | 2 June 2024 | 11 April 2018 |
| Chip lithography | 4 nm | 14 nm |
Radeon 840M has an age advantage of 6 years, and a 250% more advanced lithography process.
We couldn't decide between Radeon 840M and Radeon 550X 640SP. We've got no test results to judge.
Be aware that Radeon 840M is a notebook graphics card while Radeon 550X 640SP is a desktop one.
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