NVIDIA GeForce GTX 645 OEM vs NVIDIA TITAN RTX

VS

NVIDIA GeForce GTX 645 OEM

NVIDIA TITAN RTX

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 645 OEM and 24GB VRAM TITAN RTX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 645 OEM 's Advantages

Lower TDP (65W vs 280W)

NVIDIA TITAN RTX 's Advantages

Released 5 years and 8 months late

Boost Clock1770MHz

More VRAM (24GB vs 1024GB)

Larger VRAM bandwidth (672.0GB/s vs 64.00GB/s)

4032 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 645 OEM

0.949 TFLOPS

TITAN RTX +1618%

16.31 TFLOPS

GeForce GTX 645 OEM

VS

TITAN RTX

Graphics Card

Apr 2013

Release Date

Dec 2018

GeForce 600

Generation

GeForce 20

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1350 MHz

-

Boost Clock

1770 MHz

1000 MHz

Memory Clock

1750 MHz

Memory

1024MB

Memory Size

24GB

GDDR5

Memory Type

GDDR6

128bit

Memory Bus

384bit

64.00GB/s

Bandwidth

672.0GB/s

Render Config

-

SM Count

72

576

Shading Units

4608

48

TMUs

288

16

ROPs

96

-

Tensor Cores

576

-

RT Cores

72

16 KB (per SMX)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

6 MB

-

Theoretical Performance

9.888 GPixel/s

Pixel Rate

169.9 GPixel/s

39.55 GTexel/s

Texture Rate

509.8 GTexel/s

-

FP16 (half)

32.62 TFLOPS

949.2 GFLOPS

FP32 (float)

16.31 TFLOPS

39.55 GFLOPS

FP64 (double)

509.8 GFLOPS

Board Design

65W

TDP

280W

250 W

Suggested PSU

600 W

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

Outputs

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

None

Power Connectors

2x 8-pin

Graphics Processor

GK106

GPU Name

TU102

GK106-200-A1

GPU Variant

TU102-400-A1

Kepler

Architecture

Turing

TSMC

Foundry

TSMC

28 nm

Process Size

12 nm

2.54 billion

Transistors

18.6 billion

221 mm²

Die Size

754 mm²

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

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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