Rubin GPU vs N1X 48SM

Primary details

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

Place in the ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Architecture	Blackwell 2.0 (2025−2026)	Rubin (2026−2027)
GPU code name	GB20B	GR100
Market segment	Laptop	Workstation
Release date	1 June 2026 (less than a year ago)	2026 (recently)

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	6144	28672
Core clock speed	741 MHz	700 MHz
Boost clock speed	2346 MHz	2267 MHz
Number of transistors	no data	336,000 million
Manufacturing process technology	5 nm	3 nm
Power consumption (TDP)	no data	2300 Watt
Texture fill rate	900.9	2,031.2
Floating-point processing power	28.83 TFLOPS	130 TFLOPS
ROPs	48	24
TMUs	384	896
Tensor Cores	192	896
Ray Tracing Cores	48	no data
L1 Cache	6 MB	56 MB
L2 Cache	50 MB	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	PCIe 5.0 x16	PCIe 6.0 x16
Width	no data	SXM Module
Supplementary power connectors	None	no data

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	LPDDR5X	HBM4
Maximum RAM amount	128 GB	288 GB
Memory bus width	256 Bit	16384 Bit
Memory clock speed	1067 MHz	2695 MHz
Memory bandwidth	273.2 GB/s	22.1 TB/s
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	1x HDMI	No outputs
HDMI	+	-

API and SDK support

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

DirectX	N/A	N/A
Shader Model	N/A	N/A
OpenGL	N/A	N/A
OpenCL	3.0	3.0
Vulkan	N/A	N/A
CUDA	12.1	10.7
DLSS	+	+

Pros & cons summary

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Maximum RAM amount	128 GB	288 GB
Chip lithography	5 nm	3 nm