Radeon RX 6800 3456SP vs HD Graphics 620
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 904 | not rated |
| Place by popularity | 98 | not in top-100 |
| Power efficiency | 11.42 | no data |
| Architecture | Generation 9.5 (2016−2020) | RDNA 2.0 (2020−2025) |
| GPU code name | Kaby Lake GT2 | Navi 21 |
| Market segment | Laptop | Desktop |
| Release date | 30 August 2016 (9 years ago) | no data |
| Launch price (MSRP) | no data | $579 |
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 | 192 | 3456 |
| Core clock speed | 300 MHz | 1700 MHz |
| Boost clock speed | 1000 MHz | 2250 MHz |
| Number of transistors | 189 million | 26,800 million |
| Manufacturing process technology | 14 nm++ | 7 nm |
| Power consumption (TDP) | 15 Watt | 250 Watt |
| Texture fill rate | 24.00 | 486.0 |
| Floating-point processing power | 0.384 TFLOPS | 15.55 TFLOPS |
| ROPs | 3 | 96 |
| TMUs | 24 | 216 |
| Ray Tracing Cores | no data | 54 |
| L0 Cache | no data | 864 KB |
| L1 Cache | no data | 768 KB |
| L2 Cache | no data | 4 MB |
| L3 Cache | no data | 128 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 | Ring Bus | PCIe 4.0 x16 |
| Length | no data | 267 mm |
| Width | no data | 2-slot |
| Supplementary power connectors | no data | 2x 8-pin |
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 | DDR3L/LPDDR3/LPDDR4 | GDDR6 |
| Maximum RAM amount | 32 GB | 16 GB |
| Memory bus width | System Shared | 256 Bit |
| Memory clock speed | System Shared | 2000 MHz |
| Memory bandwidth | no data | 512.0 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 | Portable Device Dependent | 1x HDMI 2.1, 2x DisplayPort 1.4a, 1x USB Type-C |
| HDMI | - | + |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| Quick Sync | + | no data |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (12_1) | 12 Ultimate (12_2) |
| Shader Model | 6.4 | 6.8 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 2.1 |
| Vulkan | + | 1.3 |
Pros & cons summary
| Maximum RAM amount | 32 GB | 16 GB |
| Chip lithography | 14 nm | 7 nm |
| Power consumption (TDP) | 15 Watt | 250 Watt |
HD Graphics 620 has a 100% higher maximum VRAM amount, and 1566.7% lower power consumption.
RX 6800 3456SP, on the other hand, has a 100% more advanced lithography process.
We couldn't decide between HD Graphics 620 and Radeon RX 6800 3456SP. We've got no test results to judge.
Be aware that HD Graphics 620 is a notebook graphics card while Radeon RX 6800 3456SP is a desktop one.
Other comparisons
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