GB10

Key Metrics

Save this GPU, then open another GPU page to compare them side by side.

Identity
Entry Type	Reference GPU
Official Name	NVIDIA GB10
GPU Codename	GB20B
Architecture	Blackwell 2.0
Launch Date	2025-10-15
Market Segment Notes	Desktop in NVIDIA B-Series
Core Specs
GPU Die	GB20B
Process Node	TSMC 5 nm
CUDA Cores	6144
SM Count	48
TMUs	384
ROPs	48
AI Units / Tensor Cores	384
RT Units / RT Cores	48
Base Clock	1,665 MHz
Boost Clock	2,418 MHz
Pixel Fillrate	116.1 GP/s
Texture Fillrate	928.5 GT/s
FP32 Throughput	29.71 TFLOPS
FP16 Throughput	29.71 TFLOPS
FP64 Throughput	0.46 TFLOPS
Memory
Memory Size	128 GB
Memory Type	LPDDR5X
Memory Bus Width	256-bit
Memory Clock	1,067 MHz
Memory Bandwidth	273.2 GB/s
L2 Cache	50 MB
L1 Cache	250 KB
Board and Display
TDP / TBP	140 W
Recommended PSU	300 W
Power Connectors	None
Interface	PCIe 5.0 x16
Display Outputs	1x HDMI
Slot Width	IGP, 150 mm length, 150 mm width
Card Length	150 mm
Board Partner Model	Reference or OEM specification
Reference Design	NVIDIA reference design
Software
CUDA Compute Capability	12.1
OpenCL Support	OpenCL 3.0

Partial entry. Core specifications may be present, but history, variant notes, known issues, and source review may be incomplete.

Reviews1 review

Board-partner, reference-card, article, and video reviews that cover this GPU.

Hands-on review of the DGX Spark system built around the GB10 superchip.

Sources

Sources reviewed: 2026-06-20

This entry is still being source-checked.

Specifications are currently based on reference/spec-dump sources. Historical notes require additional source review.

Data confidence and source status

Partial entry. Core specifications may be present, but history, variant notes, known issues, and source review may be incomplete.

Verified: core specifications and historical notes have been reviewed against listed sources.
Partial: core specifications may be present, but history, variant notes, known issues, and source review may be incomplete.
Imported: spec-only imported entry pending editorial source review.
Needs source review: narrative notes are incomplete until reviewed.

TechPowerUp GPU SpecsModel-level specification reference for this GPU entryOpen source

RightNow GPU DatabaseOpen data inventory used for bulk normalization and cross-checking Derived/spec-dump source. Treat as a reference dataset, not independent historical verification.Open source

Found an incorrect spec, missing source, or variant issue?

Submit a correction