NVIDIA GeForce GTX 1660 Ti vs NVIDIA GeForce GT 640 Rev. 2

VS

NVIDIA GeForce GTX 1660 Ti

NVIDIA GeForce GT 640 Rev. 2

We compared two Desktop platform GPUs: 6GB VRAM GeForce GTX 1660 Ti and 1024MB VRAM GeForce GT 640 Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 1660 Ti 's Advantages

Released 5 years and 9 months late

Boost Clock1770MHz

More VRAM (6GB vs 1024GB)

Larger VRAM bandwidth (288.0GB/s vs 40.06GB/s)

1152 additional rendering cores

NVIDIA GeForce GT 640 Rev. 2 's Advantages

Lower TDP (49W vs 120W)

Score

Benchmark

FP32 (float)

GeForce GTX 1660 Ti +577%

5.437 TFLOPS

GeForce GT 640 Rev. 2

0.803 TFLOPS

GeForce GTX 1660 Ti

VS

GeForce GT 640 Rev. 2

Graphics Card

Feb 2019

Release Date

May 2013

GeForce 16

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x8

Clock Speeds

1500 MHz

Base Clock

-

1770 MHz

Boost Clock

-

1500 MHz

Memory Clock

1252 MHz

Memory

6GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

192bit

Memory Bus

64bit

288.0GB/s

Bandwidth

40.06GB/s

Render Config

-

24

SM Count

-

1536

Shading Units

384

96

TMUs

32

48

ROPs

8

-

64 KB (per SM)

L1 Cache

16 KB (per SMX)

1536 KB

L2 Cache

512 KB

-

Theoretical Performance

84.96 GPixel/s

Pixel Rate

8.368 GPixel/s

169.9 GTexel/s

Texture Rate

33.47 GTexel/s

10.87 TFLOPS

FP16 (half)

-

5.437 TFLOPS

FP32 (float)

803.3 GFLOPS

169.9 GFLOPS

FP64 (double)

33.47 GFLOPS

Board Design

120W

TDP

49W

300 W

Suggested PSU

200 W

1x DVI 1x HDMI 2.0 1x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

1x 8-pin

Power Connectors

None

Graphics Processor

TU116

GPU Name

GK208

TU116-400-A1

GPU Variant

GK208-400-A1

Turing

Architecture

Kepler 2.0

TSMC

Foundry

TSMC

12 nm

Process Size

28 nm

6.6 billion

Transistors

1.02 billion

284 mm²

Die Size

87 mm²

Graphics Features

12 (12_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

7.5

CUDA

3.5

6.6

Shader Model

5.1

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