NVIDIA GeForce GT 640 vs NVIDIA GeForce GTX 1660

VS

NVIDIA GeForce GT 640

NVIDIA GeForce GTX 1660

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

Main Differences

NVIDIA GeForce GT 640 's Advantages

Lower TDP (65W vs 120W)

NVIDIA GeForce GTX 1660 's Advantages

Released 6 years and 9 months late

Boost Clock1785MHz

More VRAM (6GB vs 2GB)

Larger VRAM bandwidth (192.1GB/s vs 28.51GB/s)

1024 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640

0.693 TFLOPS

GeForce GTX 1660 +625%

5.027 TFLOPS

Blender

GeForce GT 640

32

GeForce GTX 1660 +2090%

701

OctaneBench

GeForce GT 640

8

GeForce GTX 1660 +1300%

112

GeForce GT 640

VS

GeForce GTX 1660

Graphics Card

Jun 2012

Release Date

Mar 2019

GeForce 600

Generation

GeForce 16

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1530 MHz

-

Boost Clock

1785 MHz

891 MHz

Memory Clock

2001 MHz

Memory

2GB

Memory Size

6GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

192bit

28.51GB/s

Bandwidth

192.1GB/s

Render Config

-

SM Count

22

384

Shading Units

1408

32

TMUs

88

16

ROPs

48

-

16 KB (per SMX)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

1536 KB

-

Theoretical Performance

7.216 GPixel/s

Pixel Rate

85.68 GPixel/s

28.86 GTexel/s

Texture Rate

157.1 GTexel/s

-

FP16 (half)

10.05 TFLOPS

692.7 GFLOPS

FP32 (float)

5.027 TFLOPS

28.86 GFLOPS

FP64 (double)

157.1 GFLOPS

Board Design

65W

TDP

120W

250 W

Suggested PSU

300 W

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

Outputs

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

None

Power Connectors

1x 8-pin

Graphics Processor

GK107

GPU Name

TU116

GK107-300-A2

GPU Variant

TU116-300-A1

Kepler

Architecture

Turing

TSMC

Foundry

TSMC

28 nm

Process Size

12 nm

1.27 billion

Transistors

6.6 billion

118 mm²

Die Size

284 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_1)

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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