NVIDIA GeForce RTX 2080 Ti 12 GB vs NVIDIA GeForce GT 645 OEM

VS

NVIDIA GeForce RTX 2080 Ti 12 GB

NVIDIA GeForce GT 645 OEM

We compared two Desktop platform GPUs: 12GB VRAM GeForce RTX 2080 Ti 12 GB and 1024MB VRAM GeForce GT 645 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 2080 Ti 12 GB 's Advantages

Boost Clock1635MHz

More VRAM (12GB vs 1024GB)

Larger VRAM bandwidth (768.0GB/s vs 91.87GB/s)

4320 additional rendering cores

NVIDIA GeForce GT 645 OEM 's Advantages

Lower TDP (102W vs 250W)

Score

Benchmark

FP32 (float)

GeForce RTX 2080 Ti 12 GB +1585%

15.07 TFLOPS

GeForce GT 645 OEM

0.894 TFLOPS

GeForce RTX 2080 Ti 12 GB

VS

GeForce GT 645 OEM

Graphics Card

Unknown

Release Date

Apr 2012

GeForce 20

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1350 MHz

Base Clock

-

1635 MHz

Boost Clock

-

2000 MHz

Memory Clock

957 MHz

Memory

12GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

384bit

Memory Bus

192bit

768.0GB/s

Bandwidth

91.87GB/s

Render Config

-

72

SM Count

6

4608

Shading Units

288

TMUs

48

96

ROPs

24

576

Tensor Cores

-

72

RT Cores

-

64 KB (per SM)

L1 Cache

64 KB (per SM)

6 MB

L2 Cache

384 KB

-

Theoretical Performance

157.0 GPixel/s

Pixel Rate

9.312 GPixel/s

470.9 GTexel/s

Texture Rate

37.25 GTexel/s

30.14 TFLOPS

FP16 (half)

-

15.07 TFLOPS

FP32 (float)

894.0 GFLOPS

470.9 GFLOPS

FP64 (double)

74.50 GFLOPS

Board Design

250W

TDP

102W

600 W

Suggested PSU

300 W

1x HDMI 2.03x DisplayPort 1.4a1x USB Type-C

Outputs

2x DVI 1x mini-HDMI 1.3a

2x 8-pin

Power Connectors

-

Graphics Processor

TU102

GPU Name

GF114

TU102-350-A1

GPU Variant

-

Turing

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

12 nm

Process Size

40 nm

18.6 billion

Transistors

1.95 billion

754 mm²

Die Size

332 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

1.1

1.3

Vulkan

N/A

7.5

CUDA

2.1

6.8

Shader Model

5.1

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