NVIDIA GeForce RTX 2070 vs NVIDIA GeForce GT 640

VS

NVIDIA GeForce RTX 2070

NVIDIA GeForce GT 640

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

Main Differences

NVIDIA GeForce RTX 2070 's Advantages

Released 6 years and 4 months late

Boost Clock1620MHz

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (448.0GB/s vs 28.51GB/s)

1920 additional rendering cores

NVIDIA GeForce GT 640 's Advantages

Lower TDP (65W vs 175W)

Score

Benchmark

FP32 (float)

GeForce RTX 2070 +977%

7.465 TFLOPS

GeForce GT 640

0.693 TFLOPS

GeForce RTX 2070

VS

GeForce GT 640

Graphics Card

Oct 2018

Release Date

Jun 2012

GeForce 20

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1410 MHz

Base Clock

-

1620 MHz

Boost Clock

-

1750 MHz

Memory Clock

891 MHz

Memory

8GB

Memory Size

2GB

GDDR6

Memory Type

DDR3

256bit

Memory Bus

128bit

448.0GB/s

Bandwidth

28.51GB/s

Render Config

-

36

SM Count

-

2304

Shading Units

384

144

TMUs

32

64

ROPs

16

288

Tensor Cores

-

36

RT Cores

-

64 KB (per SM)

L1 Cache

16 KB (per SMX)

4 MB

L2 Cache

256 KB

-

Theoretical Performance

103.7 GPixel/s

Pixel Rate

7.216 GPixel/s

233.3 GTexel/s

Texture Rate

28.86 GTexel/s

14.93 TFLOPS

FP16 (half)

-

7.465 TFLOPS

FP32 (float)

692.7 GFLOPS

233.3 GFLOPS

FP64 (double)

28.86 GFLOPS

Board Design

175W

TDP

65W

450 W

Suggested PSU

250 W

1x DVI 1x HDMI 2.0 2x DisplayPort 1.4a 1x USB Type-C

Outputs

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

1x 8-pin

Power Connectors

None

Graphics Processor

TU106

GPU Name

GK107

TU106-400A-A1

GPU Variant

GK107-300-A2

Turing

Architecture

Kepler

TSMC

Foundry

TSMC

12 nm

Process Size

28 nm

10.8 billion

Transistors

1.27 billion

445 mm²

Die Size

118 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

7.5

CUDA

3.0

6.6

Shader Model

5.1

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