GB10 vs Radeon 820M

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking	677	not rated
Place by popularity	not in top-100	not in top-100
Power efficiency	27.18	no data
Architecture	RDNA 3.5 (2025−2026)	Blackwell 2.0 (2025−2026)
GPU code name	Krackan Point 2	GB20B
Market segment	Laptop	Workstation
Release date	March 2025 (1 year ago)	15 October 2025 (less than a year ago)
Launch price (MSRP)	no data	$3,999

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Real power consumption of some graphics cards can well exceed their nominal TDP, especially if overclocked.

Pipelines / CUDA cores	128	6144
Core clock speed	400 MHz	1665 MHz
Boost clock speed	2800 MHz	2418 MHz
Manufacturing process technology	4 nm	5 nm
Power consumption (TDP)	15 Watt	140 Watt
Texture fill rate	22.40	928.5
Floating-point processing power	no data	29.71 TFLOPS
ROPs	4	48
TMUs	8	384
Tensor Cores	no data	384
Ray Tracing Cores	2	48
L0 Cache	32 KB	no data
L1 Cache	32 KB	6 MB
L2 Cache	1024 KB	50 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	medium sized	no data
Interface	PCIe 4.0 x8	PCIe 5.0 x16
Length	no data	150 mm
Width	no data	IGP
Supplementary power connectors	None	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	System Shared	LPDDR5X
Maximum RAM amount	System Shared	128 GB
Memory bus width	System Shared	256 Bit
Memory clock speed	System Shared	1067 MHz
Memory bandwidth	no data	273.2 GB/s
Shared memory	+	no data
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
HDMI	-	+

API and SDK support

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX	12 Ultimate (12_2)	N/A
Shader Model	6.8	N/A
OpenGL	4.6	N/A
OpenCL	2.1	3.0
Vulkan	1.4	N/A
CUDA	-	12.1
DLSS	-	+

Pros & cons summary

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Chip lithography	4 nm	5 nm
Power consumption (TDP)	15 Watt	140 Watt