Tesla K40m

Kepler Tesla K Series Data Center Server GDDR5 2013 NVIDIA

Key Metrics

Launch Date: 2013-11-22
CUDA Cores: 2,880
Memory: 12 GB GDDR5
Memory Bandwidth: 288.4 GB/s
TDP/TBP: 245 W
Interface: PCIe 3.0 x16

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GPU Specs

Identity
Entry Type	Data Center GPU
Official Name	NVIDIA Tesla K40m
GPU Codename	GK110B
Architecture	Kepler
Launch Date	2013-11-22
Market Segment Notes	Data Center in Tesla K Series
Core Specs
GPU Die	GK110B
Chip Variant / Package	BGA-2152
Process Node	TSMC 28 nm
Transistor Count	7.08 billion
Die Size	561 mm²
CUDA Cores	2880
SM Count	0
TMUs	240
ROPs	48
Base Clock	745 MHz
Boost Clock	876 MHz
Pixel Fillrate	52.56 GP/s
Texture Fillrate	210.2 GT/s
FP32 Throughput	5.05 TFLOPS
FP64 Throughput	1.68 TFLOPS
Memory
Memory Size	12 GB
Memory Type	GDDR5
Memory Bus Width	384-bit
Memory Clock	1,502 MHz
Memory Bandwidth	288.4 GB/s
L2 Cache	2 MB
L1 Cache	16 KB
Board and Display
TDP / TBP	245 W
Recommended PSU	550 W
Interface	PCIe 3.0 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 11.1
Vulkan Support	Vulkan 1.2
OpenGL Support	OpenGL 4.6
OpenCL Support	OpenCL 3.0

Why It Mattered

Tesla K40m 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

Independent reference sources

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

Reference databases

RightNow GPU DatabaseOpen GPU database used to cross-check specifications A reference database: good for cross-checking specifications, but not proof of the original release details on its own.Open source

Why It Mattered

Used-Market Caution

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Tesla K20m

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Independent reference sources

Reference databases