NVIDIA A40 vs NVIDIA T4 Full Specs

Summary

10,752 Shaders 1.74GHz	2,560 Shaders 1.59GHz
48GB GDDR6347.9GB/s	16GB GDDR6160GB/s
Peak·FP32·FP16 37.42 TFLOPS	Peak·FP32·FP16 8.14 TFLOPS
Form Factor PCIe Card	Form Factor PCIe Card
TDP 300W	TDP 70W
Power Connectors 1x 8-Pin EPS	Power Connectors -

Theoretical Performance

Clock Speed1740MHz UC·Base·Boost·OC	Clock Speed1590MHz UC·Base·Boost·OC
Peak OPS 1.2 POPSINT4 Tensor Sparse	Peak OPS 260.5 TOPSINT4 Tensor
Tensor FP16-16 149.7 TFLOPS FP16-16 Tensor Sparse 299.3 TFLOPS Tensor FP16-32 74.83 TFLOPS FP16-32 Tensor Sparse 149.7 TFLOPS	Tensor FP16-16 65.13 TFLOPS FP16-16 Tensor Sparse - Tensor FP16-32 32.56 TFLOPS FP16-32 Tensor Sparse -
BF16 37.42 TFLOPS Tensor BF16 74.83 TFLOPS BF16 Tensor Sparse 149.7 TFLOPS	BF16 - Tensor BF16 32.56 TFLOPS BF16 Tensor Sparse -
Tensor TF32 37.42 TFLOPS	Tensor TF32 32.56 TFLOPS
FP32 37.42 TFLOPS	FP32 8.14 TFLOPS
FP64 584.6 GFLOPS	FP64 254.4 GFLOPS
Tensor INT4 598.7 TOPS	Tensor INT4 260.5 TOPS
Tensor INT8 299.3 TOPS	Tensor INT8 130.3 TOPS
Ray 56.43 TOPS	Ray 24.56 TOPS
Pixel Rate 194.9 GPixel/s	Pixel Rate 101.8 GPixel/s
Texture Rate 584.6 GTexel/s	Texture Rate 254.4 GTexel/s

Core Config

Shaders 10,752 Shaders	Shaders 2,560 Shaders
TMUs 336 TMUs	TMUs 160 TMUs
ROPs 112 ROPs	ROPs 64 ROPs
Tensor Cores 336 T-Cores	Tensor Cores 320 T-Cores
RT Cores 84 RT-Cores	RT Cores 40 RT-Cores
SMs 84 SMs	SMs 40 SMs

Clocks

Base Clock 1.3GHz	Base Clock 585MHz
Boost Clock 1.74GHz	Boost Clock 1.59GHz

Cache

L2 Cache 6MB shared

L2 Cache 4MB shared

Memory

48GB GDDR6	16GB GDDR6
Memory Bus 384-bit	Memory Bus 256-bit
Memory Speed 7.2GT/s	Memory Speed 5GT/s
Memory Bandwidth 347.9GB/s	Memory Bandwidth 160GB/s
ECC No	ECC No

Power & Thermals

TDP 300W

TDP 70W

Video Output

Multi-Monitor 3	Multi-Monitor -
HDCP HDCP 2.3	HDCP -

Ports

3x DisplayPort 1.3

-

Encoder

Encoder Model NVENC 7	Encoder Model NVENC 7
Codec AVC (H.264) HEVC (H.265)	Codec AVC (H.264) HEVC (H.265)

Decoder

Decoder Model NVDEC 5	Decoder Model NVDEC 4
Codec MPEG-1 MPEG-2 MPEG-4 VC-1 VP8 VP9 AVC (H.264) HEVC (H.265) AV1	Codec MPEG-1 MPEG-2 MPEG-4 VC-1 VP8 VP9 AVC (H.264) HEVC (H.265) -

Card

Form Factor PCIe Card	Form Factor PCIe Card
PCIe 2-Slots	PCIe 1-Slots
Height 112 mm (4.41") Width 267 mm (10.51") Depth 40 mm (1.57")	Height 69 mm (2.72") Width 168 mm (6.61") Depth 20 mm (0.79")
Cooling Passive	Cooling Passive
Power Connectors 1x 8-Pin EPS	Power Connectors -

Chip

Manufacturer NVIDIA	Manufacturer NVIDIA
Chip Designer NVIDIA	Chip Designer NVIDIA
Architecture Ampere	Architecture Turing
Family Server	Family Server
Branding	Branding
Codename NV172	Codename NV164
Chip Variant GA102-200-KD-A1	Chip Variant TU104-150-KC-A1
Market Segment Server	Market Segment Server
Release Date Oct 5, 2020	Release Date Sep 13, 2018

Fabrication

Foundry Samsung	Foundry TSMC
Fabrication Node 8N	Fabrication Node 12FFN
Die Size 628mm²	Die Size 545mm²
Transistor Count 28.3 Billion	Transistor Count 13.6 Billion
Transistor Density 45.04 MTr/mm²	Transistor Density 24.95 MTr/mm²

Images