NVIDIA GeForce RTX 3090 Ti vs NVIDIA GeForce GT 640

VS

NVIDIA GeForce RTX 3090 Ti NVIDIA GeForce GT 640

We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 3090 Ti and 2GB VRAM GeForce GT 640 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3090 Ti 's Advantages

Released 9 years and 7 months late

Boost Clock1860MHz

More VRAM (24GB vs 2GB)

Larger VRAM bandwidth (1008GB/s vs 28.51GB/s)

10368 additional rendering cores

NVIDIA GeForce GT 640 's Advantages

Lower TDP (65W vs 450W)

Score

Benchmark

FP32 (float)

GeForce RTX 3090 Ti +5672%

40 TFLOPS

GeForce GT 640

0.693 TFLOPS

Blender

GeForce RTX 3090 Ti +20084%

6459

GeForce GT 640

32

OctaneBench

GeForce RTX 3090 Ti +8025%

650

GeForce GT 640

8

GeForce RTX 3090 Ti

VS

GeForce GT 640

Graphics Card

Jan 2022

Release Date

Jun 2012

GeForce 30

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1560 MHz

Base Clock

-

1860 MHz

Boost Clock

-

1313 MHz

Memory Clock

891 MHz

Memory

24GB

Memory Size

2GB

GDDR6X

Memory Type

DDR3

384bit

Memory Bus

128bit

1008GB/s

Bandwidth

28.51GB/s

Render Config

84

SM Count

-

Compute Units

-

10752

Shading Units

384

336

TMUs

32

112

ROPs

16

336

Tensor Cores

-

84

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per SMX)

6 MB

L2 Cache

256 KB

Theoretical Performance

208.3 GPixel/s

Pixel Rate

7.216 GPixel/s

625.0 GTexel/s

Texture Rate

28.86 GTexel/s

40.00 TFLOPS

FP16 (half)

-

40.00 TFLOPS

FP32 (float)

692.7 GFLOPS

625.0 GFLOPS

FP64 (double)

28.86 GFLOPS

Graphics Processor

GA102

GPU Name

GK107

GA102-350-A1

GPU Variant

GK107-300-A2

Ampere

Architecture

Kepler

Samsung

Foundry

TSMC

8 nm

Process Size

28 nm

28.3 billion

Transistors

1.27 billion

628 mm²

Die Size

118 mm²

Board Design

450W

TDP

65W

850 W

Suggested PSU

250 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

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

1x 16-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

8.6

CUDA

3.0

6.6

Shader Model

5.1

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