NVIDIA GeForce RTX 3080 vs NVIDIA GeForce GT 620

VS

NVIDIA GeForce RTX 3080

NVIDIA GeForce GT 620

We compared two Desktop platform GPUs: 10GB VRAM GeForce RTX 3080 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 3080 's Advantages

Released 8 years and 4 months late

Boost Clock1710MHz

More VRAM (10GB vs 1024GB)

Larger VRAM bandwidth (760.3GB/s vs 14.40GB/s)

8608 additional rendering cores

NVIDIA GeForce GT 620 's Advantages

Lower TDP (49W vs 320W)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 +10966%

29.77 TFLOPS

GeForce GT 620

0.269 TFLOPS

GeForce RTX 3080

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

1440 MHz

Base Clock

-

1710 MHz

Boost Clock

-

1188 MHz

Memory Clock

900 MHz

Memory

10GB

Memory Size

1024MB

GDDR6X

Memory Type

DDR3

320bit

Memory Bus

64bit

760.3GB/s

Bandwidth

14.40GB/s

Render Config

-

68

SM Count

2

8704

Shading Units

96

272

TMUs

16

96

ROPs

4

272

Tensor Cores

-

68

RT Cores

-

128 KB (per SM)

L1 Cache

64 KB (per SM)

5 MB

L2 Cache

128 KB

-

Theoretical Performance

164.2 GPixel/s

Pixel Rate

2.800 GPixel/s

465.1 GTexel/s

Texture Rate

11.20 GTexel/s

29.77 TFLOPS

FP16 (half)

-

29.77 TFLOPS

FP32 (float)

268.8 GFLOPS

465.1 GFLOPS

FP64 (double)

22.40 GFLOPS

Board Design

320W

TDP

49W

700 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

GA102-200-KD-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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