Tesla K20m

Kepler Tesla K Series Data Center Server GDDR5 2013 NVIDIA

Key Metrics

Architecture: Kepler
Launch Date: 2013-01-05
CUDA Cores: 2,496
Memory: 5 GB GDDR5
Memory Bandwidth: 208 GB/s
TDP/TBP: 225 W
Interface: PCIe 2.0 x16

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

GPU Specs

Identity
Entry Type	Data Center GPU
Official Name	NVIDIA Tesla K20m
GPU Codename	GK110
Architecture	Kepler
Launch Date	2013-01-05
Market Segment Notes	Data Center in Tesla K Series
Core Specs
GPU Die	GK110
Chip Variant / Package	BGA-2152
Process Node	TSMC 28 nm
Transistor Count	7.08 billion
Die Size	561 mm²
CUDA Cores	2496
SM Count	0
TMUs	208
ROPs	40
Base Clock	706 MHz
Boost Clock	706 MHz
Pixel Fillrate	36.71 GP/s
Texture Fillrate	146.8 GT/s
FP32 Throughput	3.52 TFLOPS
FP64 Throughput	1.17 TFLOPS
Memory
Memory Size	5 GB
Memory Type	GDDR5
Memory Bus Width	320-bit
Memory Clock	1,300 MHz
Memory Bandwidth	208 GB/s
L2 Cache	1 MB
L1 Cache	16 KB
Board and Display
TDP / TBP	225 W
Recommended PSU	550 W
Power Connectors	1x 6-pin + 1x 8-pin
Interface	PCIe 2.0 x16
Slot Width	Dual-slot, 267 mm length
Card Length	267 mm
Board Partner Model	Reference or OEM specification
Reference Design	NVIDIA reference design
Software
CUDA Compute Capability	3.5
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

Tesla K20m is a Tesla K Series accelerator from the Kepler generation. Its historical context is data-center deployment rather than gaming, so form factor, memory capacity, interconnect, virtualization features, and server compatibility are the details that make this entry useful.

Used-Market Caution

Before buying used, confirm PCIe versus SXM or OAM form factor, passive airflow needs, auxiliary power, HBM size, firmware locks, ECC or retired-page errors, seller proof from nvidia-smi under load, and whether any vGPU or enterprise licensing is required.

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.

Source Status

Source review pending. Treat narrative notes as incomplete until listed sources are reviewed.

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.

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

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

Submit a correction

Why It Mattered

Used-Market Caution

Tesla K10

Tesla K20c

Tesla K20s

Tesla K20X

Source Status

Independent reference sources

Derived datasets and spec dumps