NVIDIA GeForce GT 640M vs NVIDIA GeForce RTX 2070 Mobile

VS

NVIDIA GeForce GT 640M NVIDIA GeForce RTX 2070 Mobile

We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 640M and 8GB VRAM GeForce RTX 2070 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640M 's Advantages

Lower TDP (32W vs 115W)

NVIDIA GeForce RTX 2070 Mobile 's Advantages

Released 6 years and 10 months late

Boost Clock1440MHz

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (448.0GB/s vs 28.80GB/s)

1920 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640M

0.48 TFLOPS

GeForce RTX 2070 Mobile +1282%

6.636 TFLOPS

GeForce GT 640M

VS

GeForce RTX 2070 Mobile

Graphics Card

Mar 2012

Release Date

Jan 2019

GeForce 600M

Generation

GeForce 20 Mobile

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1215 MHz

-

Boost Clock

1440 MHz

900 MHz

Memory Clock

1750 MHz

Memory

2GB

Memory Size

8GB

DDR3

Memory Type

GDDR6

128bit

Memory Bus

256bit

28.80GB/s

Bandwidth

448.0GB/s

Render Config

-

SM Count

36

-

Compute Units

-

384

Shading Units

2304

32

TMUs

144

16

ROPs

64

-

Tensor Cores

288

-

RT Cores

36

16 KB (per SMX)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

4 MB

Theoretical Performance

5.000 GPixel/s

Pixel Rate

92.16 GPixel/s

20.00 GTexel/s

Texture Rate

207.4 GTexel/s

-

FP16 (half)

13.27 TFLOPS

480.0 GFLOPS

FP32 (float)

6.636 TFLOPS

20.00 GFLOPS

FP64 (double)

207.4 GFLOPS

Graphics Processor

GK107

GPU Name

TU106

N13P-GS

GPU Variant

N18E-G2-A1

Kepler

Architecture

Turing

TSMC

Foundry

TSMC

28 nm

Process Size

12 nm

1.27 billion

Transistors

10.8 billion

118 mm²

Die Size

445 mm²

Board Design

32W

TDP

115W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.0

CUDA

7.5

5.1

Shader Model

6.6

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