NVIDIA GeForce RTX 2080 Ti 12 GB vs NVIDIA GeForce GT 640 OEM

VS

NVIDIA GeForce RTX 2080 Ti 12 GB

NVIDIA GeForce GT 640 OEM

We compared two Desktop platform GPUs: 12GB VRAM GeForce RTX 2080 Ti 12 GB and 2GB VRAM GeForce GT 640 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 2GB)

Larger VRAM bandwidth (768.0GB/s vs 28.51GB/s)

4224 additional rendering cores

NVIDIA GeForce GT 640 OEM 's Advantages

Lower TDP (50W vs 250W)

Score

Benchmark

FP32 (float)

GeForce RTX 2080 Ti 12 GB +2362%

15.07 TFLOPS

GeForce GT 640 OEM

0.612 TFLOPS

GeForce RTX 2080 Ti 12 GB

VS

GeForce GT 640 OEM

Graphics Card

Unknown

Release Date

Apr 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

-

1635 MHz

Boost Clock

-

2000 MHz

Memory Clock

891 MHz

Memory

12GB

Memory Size

2GB

GDDR6

Memory Type

DDR3

384bit

Memory Bus

128bit

768.0GB/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

157.0 GPixel/s

Pixel Rate

6.376 GPixel/s

470.9 GTexel/s

Texture Rate

25.50 GTexel/s

30.14 TFLOPS

FP16 (half)

-

15.07 TFLOPS

FP32 (float)

612.1 GFLOPS

470.9 GFLOPS

FP64 (double)

25.50 GFLOPS

Board Design

250W

TDP

50W

600 W

Suggested PSU

250 W

1x HDMI 2.03x DisplayPort 1.4a1x 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

TU102-350-A1

GPU Variant

GK107-320-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

6.8

Shader Model

5.1

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