NVIDIA T4 vs NVIDIA T40 Full Specs

Summary

2,560 Shaders 1.59GHz	4,608 Shaders 1.56GHz
16GB GDDR6160GB/s	24GB GDDR6624GB/s
Peak·FP32·FP16 8.14 TFLOPS	Peak·FP32·FP16 14.38 TFLOPS
Form Factor PCIe Card	Form Factor PCIe Card
TDP 70W	TDP 150W
Power Connectors -	Power Connectors 1x 8-Pin 1x 6-Pin

Highlights

Peak OPS

Peak OPS FP32 FP16 Tensor FP16-16 Tensor FP16-32 FP64 Tensor BF16 Tensor TF32 Tensor INT8 Tensor INT4 Memory Bandwidth TDP

T4260.5 TOPSINT4 Tensor

x1

T40460.1 TOPSINT4 Tensor

x1.77

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Theoretical Performance

Clock Speed1590MHz UC·Base·Boost·OC	Clock Speed1560MHz UC·Base·Boost·OC
Peak OPS 260.5 TOPSINT4 Tensor	Peak OPS 460.1 TOPSINT4 Tensor
Tensor FP16-16 65.13 TFLOPS Tensor FP16-32 32.56 TFLOPS	Tensor FP16-16 115 TFLOPS Tensor FP16-32 57.51 TFLOPS
Tensor BF16 32.56 TFLOPS	Tensor BF16 57.51 TFLOPS
Tensor TF32 32.56 TFLOPS	Tensor TF32 57.51 TFLOPS
FP32 8.14 TFLOPS	FP32 14.38 TFLOPS
FP64 254.4 GFLOPS	FP64 449.3 GFLOPS
Tensor INT4 260.5 TOPS	Tensor INT4 460.1 TOPS
Tensor INT8 130.3 TOPS	Tensor INT8 230 TOPS
Ray 24.56 TOPS	Ray 43.37 TOPS
Pixel Rate 101.8 GPixel/s	Pixel Rate 149.8 GPixel/s
Texture Rate 254.4 GTexel/s	Texture Rate 449.3 GTexel/s

Core Config

Shaders 2,560 Shaders	Shaders 4,608 Shaders
TMUs 160 TMUs	TMUs 288 TMUs
ROPs 64 ROPs	ROPs 96 ROPs
Tensor Cores 320 T-Cores	Tensor Cores 576 T-Cores
RT Cores 40 RT-Cores	RT Cores 72 RT-Cores
SMs 40 SMs	SMs 72 SMs

Clocks

Base Clock 585MHz	Base Clock 1.3GHz
Boost Clock 1.59GHz	Boost Clock 1.56GHz

Cache

L2 Cache 4.1MB shared

L2 Cache 6.1MB shared

Memory

16GB GDDR6	24GB GDDR6
Memory Bus 256-bit	Memory Bus 384-bit
Memory Speed 5GT/s	Memory Speed 13GT/s
Memory Bandwidth 160GB/s	Memory Bandwidth 624GB/s

Power & Thermals

TDP 70W

TDP 150W

Encoder

Encoder Model NVENC 7

Encoder Model NVENC 7

Decoder

Decoder Model NVDEC 4

Decoder Model NVDEC 4

Card

Form Factor PCIe Card	Form Factor PCIe Card
PCIe 1-Slots	PCIe 1-Slots
Height 69 mm (2.72") Width 168 mm (6.61") Depth 20 mm (0.79")	Height 111 mm (4.37") Width 267 mm (10.51") Depth 20 mm (0.79")
Cooling Passive	Cooling Passive
Power Connectors -	Power Connectors 1x 8-Pin, 1x 6-Pin

Chip

Manufacturer NVIDIA	Manufacturer NVIDIA
Chip Designer NVIDIA	Chip Designer NVIDIA
Architecture Turing	Architecture Turing
Family Server	Family Server
Branding	Branding
Codename NV164	Codename NV162
Chip Variant TU104-150-KC-A1	Chip Variant TU102-300A-K1-A1
Market Segment Server	Market Segment Server
Release Date Sep 13, 2018	Release Date Sep 13, 2018

Fabrication

Foundry TSMC	Foundry TSMC
Fabrication Node 12FFN	Fabrication Node 12FFN
Die Size 545mm²	Die Size 754mm²
Transistor Count 13.6 Billion	Transistor Count 18.6 Billion
Transistor Density 24.95 MTr/mm²	Transistor Density 24.67 MTr/mm²

Images

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