NVIDIA GeForce RTX 3090 vs NVIDIA GeForce GT 620

VS

NVIDIA GeForce RTX 3090

NVIDIA GeForce GT 620

We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 3090 and 1024MB VRAM GeForce GT 620 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3090 's Advantages

Released 8 years and 4 months late

Boost Clock1695MHz

More VRAM (24GB vs 1024GB)

Larger VRAM bandwidth (936.2GB/s vs 14.40GB/s)

10400 additional rendering cores

NVIDIA GeForce GT 620 's Advantages

Lower TDP (49W vs 350W)

Score

Benchmark

FP32 (float)

GeForce RTX 3090 +13126%

35.58 TFLOPS

GeForce GT 620

0.269 TFLOPS

GeForce RTX 3090

VS

GeForce GT 620

Graphics Card

Sep 2020

Release Date

May 2012

GeForce 30

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1395 MHz

Base Clock

-

1695 MHz

Boost Clock

-

1219 MHz

Memory Clock

900 MHz

Memory

24GB

Memory Size

1024MB

GDDR6X

Memory Type

DDR3

384bit

Memory Bus

64bit

936.2GB/s

Bandwidth

14.40GB/s

Render Config

-

82

SM Count

2

10496

Shading Units

96

328

TMUs

16

112

ROPs

4

328

Tensor Cores

-

82

RT Cores

-

128 KB (per SM)

L1 Cache

64 KB (per SM)

6 MB

L2 Cache

128 KB

-

Theoretical Performance

189.8 GPixel/s

Pixel Rate

2.800 GPixel/s

556.0 GTexel/s

Texture Rate

11.20 GTexel/s

35.58 TFLOPS

FP16 (half)

-

35.58 TFLOPS

FP32 (float)

268.8 GFLOPS

556.0 GFLOPS

FP64 (double)

22.40 GFLOPS

Board Design

350W

TDP

49W

750 W

Suggested PSU

200 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 12-pin

Power Connectors

None

Graphics Processor

GA102

GPU Name

GF108

GA102-300-A1

GPU Variant

GF108-100-KB-A1

Ampere

Architecture

Fermi

Samsung

Foundry

TSMC

8 nm

Process Size

40 nm

28.3 billion

Transistors

0.585 billion

628 mm²

Die Size

116 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

8.6

CUDA

2.1

6.6

Shader Model

5.1

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