NVIDIA GeForce GTX 1660 Ti vs NVIDIA GeForce GT 640 OEM

VS

NVIDIA GeForce GTX 1660 Ti NVIDIA GeForce GT 640 OEM

We compared two Desktop platform GPUs: 6GB VRAM GeForce GTX 1660 Ti and 2GB VRAM GeForce GT 640 OEM 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 6 years and 10 months late

Boost Clock1770MHz

More VRAM (6GB vs 2GB)

Larger VRAM bandwidth (288.0GB/s vs 28.51GB/s)

1152 additional rendering cores

NVIDIA GeForce GT 640 OEM 's Advantages

Lower TDP (50W vs 120W)

Score

Benchmark

FP32 (float)

GeForce GTX 1660 Ti +788%

5.437 TFLOPS

GeForce GT 640 OEM

0.612 TFLOPS

GeForce GTX 1660 Ti

VS

GeForce GT 640 OEM

Graphics Card

Feb 2019

Release Date

Apr 2012

GeForce 16

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1500 MHz

Base Clock

-

1770 MHz

Boost Clock

-

1500 MHz

Memory Clock

891 MHz

Memory

6GB

Memory Size

2GB

GDDR6

Memory Type

DDR3

192bit

Memory Bus

128bit

288.0GB/s

Bandwidth

28.51GB/s

Render Config

24

SM Count

-

Compute Units

-

1536

Shading Units

384

96

TMUs

32

48

ROPs

16

-

Tensor Cores

-

RT Cores

-

64 KB (per SM)

L1 Cache

16 KB (per SMX)

1536 KB

L2 Cache

256 KB

Theoretical Performance

84.96 GPixel/s

Pixel Rate

6.376 GPixel/s

169.9 GTexel/s

Texture Rate

25.50 GTexel/s

10.87 TFLOPS

FP16 (half)

-

5.437 TFLOPS

FP32 (float)

612.1 GFLOPS

169.9 GFLOPS

FP64 (double)

25.50 GFLOPS

Graphics Processor

TU116

GPU Name

GK107

TU116-400-A1

GPU Variant

GK107-320-A2

Turing

Architecture

Kepler

TSMC

Foundry

TSMC

12 nm

Process Size

28 nm

6.6 billion

Transistors

1.27 billion

284 mm²

Die Size

118 mm²

Board Design

120W

TDP

50W

300 W

Suggested PSU

250 W

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

Outputs

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

1x 8-pin

Power Connectors

None

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

3.0

6.6

Shader Model

5.1

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