NVIDIA GeForce GT 640 OEM vs NVIDIA GeForce GTX 1660 Ti

VS

NVIDIA GeForce GT 640 OEM NVIDIA GeForce GTX 1660 Ti

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

Main Differences

NVIDIA GeForce GT 640 OEM 's Advantages

Lower TDP (50W vs 120W)

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

Score

Benchmark

FP32 (float)

GeForce GT 640 OEM

0.612 TFLOPS

GeForce GTX 1660 Ti +788%

5.437 TFLOPS

GeForce GT 640 OEM

VS

GeForce GTX 1660 Ti

Graphics Card

Apr 2012

Release Date

Feb 2019

GeForce 600

Generation

GeForce 16

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1500 MHz

-

Boost Clock

1770 MHz

891 MHz

Memory Clock

1500 MHz

Memory

2GB

Memory Size

6GB

DDR3

Memory Type

GDDR6

128bit

Memory Bus

192bit

28.51GB/s

Bandwidth

288.0GB/s

Render Config

-

SM Count

24

-

Compute Units

-

384

Shading Units

1536

32

TMUs

96

16

ROPs

48

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

1536 KB

Theoretical Performance

6.376 GPixel/s

Pixel Rate

84.96 GPixel/s

25.50 GTexel/s

Texture Rate

169.9 GTexel/s

-

FP16 (half)

10.87 TFLOPS

612.1 GFLOPS

FP32 (float)

5.437 TFLOPS

25.50 GFLOPS

FP64 (double)

169.9 GFLOPS

Graphics Processor

GK107

GPU Name

TU116

GK107-320-A2

GPU Variant

TU116-400-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

Board Design

50W

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 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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