NVIDIA GeForce RTX 2080 Ti 12 GB vs NVIDIA GeForce GT 640 Rev. 2

VS

NVIDIA GeForce RTX 2080 Ti 12 GB NVIDIA GeForce GT 640 Rev. 2

We compared two Desktop platform GPUs: 12GB VRAM GeForce RTX 2080 Ti 12 GB and 1024MB VRAM GeForce GT 640 Rev. 2 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

Released 9 years and 5 months late

Boost Clock1650MHz

More VRAM (12GB vs 1GB)

Larger VRAM bandwidth (768.0GB/s vs 40.06GB/s)

4224 additional rendering cores

NVIDIA GeForce GT 640 Rev. 2 's Advantages

Lower TDP (49W vs 250W)

Score

Benchmark

FP32 (float)

GeForce RTX 2080 Ti 12 GB +1794%

15.21 TFLOPS

GeForce GT 640 Rev. 2

0.803 TFLOPS

GeForce RTX 2080 Ti 12 GB

VS

GeForce GT 640 Rev. 2

Graphics Card

Oct 2022

Release Date

May 2013

GeForce 20

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x8

Clock Speeds

1410 MHz

Base Clock

-

1650 MHz

Boost Clock

-

2000 MHz

Memory Clock

1252 MHz

Memory

12GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

384bit

Memory Bus

64bit

768.0GB/s

Bandwidth

40.06GB/s

Render Config

72

SM Count

-

Compute Units

-

4608

Shading Units

384

288

TMUs

32

96

ROPs

8

576

Tensor Cores

-

72

RT Cores

-

64 KB (per SM)

L1 Cache

16 KB (per SMX)

6 MB

L2 Cache

512 KB

Theoretical Performance

158.4 GPixel/s

Pixel Rate

8.368 GPixel/s

475.2 GTexel/s

Texture Rate

33.47 GTexel/s

30.41 TFLOPS

FP16 (half)

-

15.21 TFLOPS

FP32 (float)

803.3 GFLOPS

475.2 GFLOPS

FP64 (double)

33.47 GFLOPS

Graphics Processor

TU102

GPU Name

GK208

TU102-350-A1

GPU Variant

GK208-400-A1

Turing

Architecture

Kepler 2.0

TSMC

Foundry

TSMC

12 nm

Process Size

28 nm

18.6 billion

Transistors

1.02 billion

754 mm²

Die Size

87 mm²

Board Design

250W

TDP

49W

600 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

2x 8-pin

Power Connectors

None

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

3.5

6.6

Shader Model

5.1

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