NVIDIA GeForce GT 645 OEM vs NVIDIA GeForce GTX 1660 Ti

VS

NVIDIA GeForce GT 645 OEM

NVIDIA GeForce GTX 1660 Ti

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 645 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 645 OEM 's Advantages

Lower TDP (102W vs 120W)

NVIDIA GeForce GTX 1660 Ti 's Advantages

Released 6 years and 10 months late

Boost Clock1770MHz

More VRAM (6GB vs 1024GB)

Larger VRAM bandwidth (288.0GB/s vs 91.87GB/s)

1248 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 645 OEM

0.894 TFLOPS

GeForce GTX 1660 Ti +508%

5.437 TFLOPS

GeForce GT 645 OEM

VS

GeForce GTX 1660 Ti

Graphics Card

Apr 2012

Release Date

Feb 2019

GeForce 600

Generation

GeForce 16

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1500 MHz

-

Boost Clock

1770 MHz

957 MHz

Memory Clock

1500 MHz

Memory

1024MB

Memory Size

6GB

GDDR5

Memory Type

GDDR6

192bit

Memory Bus

192bit

91.87GB/s

Bandwidth

288.0GB/s

Render Config

-

6

SM Count

24

288

Shading Units

1536

48

TMUs

96

24

ROPs

48

-

64 KB (per SM)

L1 Cache

64 KB (per SM)

384 KB

L2 Cache

1536 KB

-

Theoretical Performance

9.312 GPixel/s

Pixel Rate

84.96 GPixel/s

37.25 GTexel/s

Texture Rate

169.9 GTexel/s

-

FP16 (half)

10.87 TFLOPS

894.0 GFLOPS

FP32 (float)

5.437 TFLOPS

74.50 GFLOPS

FP64 (double)

169.9 GFLOPS

Board Design

102W

TDP

120W

300 W

Suggested PSU

300 W

2x DVI 1x mini-HDMI 1.3a

Outputs

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

-

Power Connectors

1x 8-pin

Graphics Processor

GF114

GPU Name

TU116

-

GPU Variant

TU116-400-A1

Fermi 2.0

Architecture

Turing

TSMC

Foundry

TSMC

40 nm

Process Size

12 nm

1.95 billion

Transistors

6.6 billion

332 mm²

Die Size

284 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.3

2.1

CUDA

7.5

5.1

Shader Model

6.6

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