NVIDIA TITAN RTX vs NVIDIA GeForce GT 640

VS

NVIDIA TITAN RTX

NVIDIA GeForce GT 640

We compared two Desktop platform GPUs: 24GB VRAM TITAN RTX and 2GB VRAM GeForce GT 640 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA TITAN RTX 's Advantages

Released 6 years and 6 months late

Boost Clock1770MHz

More VRAM (24GB vs 2GB)

Larger VRAM bandwidth (672.0GB/s vs 28.51GB/s)

4224 additional rendering cores

NVIDIA GeForce GT 640 's Advantages

Lower TDP (65W vs 280W)

Score

Benchmark

FP32 (float)

TITAN RTX +2253%

16.31 TFLOPS

GeForce GT 640

0.693 TFLOPS

Blender

TITAN RTX +9271%

2999

GeForce GT 640

32

OctaneBench

TITAN RTX +4437%

363

GeForce GT 640

8

TITAN RTX

VS

GeForce GT 640

Graphics Card

Dec 2018

Release Date

Jun 2012

GeForce 20

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1350 MHz

Base Clock

-

1770 MHz

Boost Clock

-

1750 MHz

Memory Clock

891 MHz

Memory

24GB

Memory Size

2GB

GDDR6

Memory Type

DDR3

384bit

Memory Bus

128bit

672.0GB/s

Bandwidth

28.51GB/s

Render Config

-

72

SM Count

-

4608

Shading Units

384

288

TMUs

32

96

ROPs

16

576

Tensor Cores

-

72

RT Cores

-

64 KB (per SM)

L1 Cache

16 KB (per SMX)

6 MB

L2 Cache

256 KB

-

Theoretical Performance

169.9 GPixel/s

Pixel Rate

7.216 GPixel/s

509.8 GTexel/s

Texture Rate

28.86 GTexel/s

32.62 TFLOPS

FP16 (half)

-

16.31 TFLOPS

FP32 (float)

692.7 GFLOPS

509.8 GFLOPS

FP64 (double)

28.86 GFLOPS

Board Design

280W

TDP

65W

600 W

Suggested PSU

250 W

1x HDMI 2.0 3x DisplayPort 1.4a 1x USB Type-C

Outputs

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

2x 8-pin

Power Connectors

None

Graphics Processor

TU102

GPU Name

GK107

TU102-400-A1

GPU Variant

GK107-300-A2

Turing

Architecture

Kepler

TSMC

Foundry

TSMC

12 nm

Process Size

28 nm

18.6 billion

Transistors

1.27 billion

754 mm²

Die Size

118 mm²

Graphics Features

12 Ultimate (12_2)

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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