Quadro K420

Kepler Quadro Creator Workstation Desktop DDR3 2014 NVIDIA

Key Metrics

Architecture: Kepler
Launch Date: 2014-08-11
CUDA Cores: 192
Memory: 1 GB DDR3
Memory Bandwidth: 28.51 GB/s
TDP/TBP: 41 W
Interface: PCIe 2.0 x16

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GPU Specs

Identity
Entry Type	Workstation GPU
Official Name	NVIDIA Quadro K420
GPU Codename	GK107
Architecture	Kepler
Launch Date	2014-08-11
Market Segment Notes	Workstation, Creator in Quadro
Core Specs
GPU Die	GK107
Chip Variant / Package	BGA-908
Process Node	TSMC 28 nm
Transistor Count	1.27 billion
Die Size	118 mm²
CUDA Cores	192
SM Count	0
TMUs	16
ROPs	16
Base Clock	876 MHz
Boost Clock	876 MHz
Pixel Fillrate	3.504 GP/s
Texture Fillrate	14.02 GT/s
FP32 Throughput	0.34 TFLOPS
FP64 Throughput	0.01 TFLOPS
Memory
Memory Size	1 GB
Memory Type	DDR3
Memory Bus Width	128-bit
Memory Clock	891 MHz
Memory Bandwidth	28.51 GB/s
L2 Cache	MB
L1 Cache	16 KB
Board and Display
TDP / TBP	41 W
Recommended PSU	200 W
Power Connectors	None
Interface	PCIe 2.0 x16
Display Outputs	1x DVI, 1x DisplayPort 1.2
Slot Width	Single-slot, 160 mm length
Card Length	160 mm
Board Partner Model	Reference or OEM specification
Reference Design	NVIDIA reference design
Software
CUDA Compute Capability	3.0
Shader Model	5.1
DirectX Support	DirectX 11.0
Vulkan Support	Vulkan 1.2
OpenGL Support	OpenGL 4.6
OpenCL Support	OpenCL 3.0

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

Why It Mattered

Quadro K420 represents the professional side of Quadro and the Kepler generation around 2014. Certified-driver workflows, VRAM configuration, display outputs, and OEM workstation compatibility are the main historical reasons to track it separately from consumer GeForce models.

Sources

Sources reviewed: 2026-08-13

This entry is still being source-checked.

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.

Primary / manufacturer sources

NVIDIA Quadro K420 datasheetOfficial exact-model specifications listing 1 GB DDR3, a 128-bit memory interface, and 41 W maximum power consumptionOpen source
NVIDIA Quadro Power Guidelines (DA-07261-001_v04)Official NVIDIA model-level TGP and auxiliary power-connector tableOpen source
NVIDIA's New Professional GPU Lineup Places Quadro at Center of Visual Computing Workflows (August 11, 2014)Official NVIDIA launch release naming all five productsOpen source

Independent reference sources

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

Derived datasets and spec dumps

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

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Why It Mattered

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Primary / manufacturer sources

Independent reference sources

Derived datasets and spec dumps