AMD Radeon RX 6800M vs NVIDIA GeForce GT 620M

VS

AMD Radeon RX 6800M

NVIDIA GeForce GT 620M

We compared two Mobile platform GPUs: 12GB VRAM Radeon RX 6800M and 1024MB VRAM GeForce GT 620M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6800M 's Advantages

Released 8 years and 9 months late

Boost Clock2390MHz

More VRAM (12GB vs 1024GB)

Larger VRAM bandwidth (384.0GB/s vs 28.80GB/s)

2464 additional rendering cores

NVIDIA GeForce GT 620M 's Advantages

Lower TDP (15W vs 145W)

Score

Benchmark

FP32 (float)

Radeon RX 6800M +4737%

12.24 TFLOPS

GeForce GT 620M

0.253 TFLOPS

Radeon RX 6800M

VS

GeForce GT 620M

Graphics Card

May 2021

Release Date

Aug 2012

Mobility Radeon

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

2116 MHz

Base Clock

-

2390 MHz

Boost Clock

-

2000 MHz

Memory Clock

900 MHz

Memory

12GB

Memory Size

1024MB

GDDR6

Memory Type

DDR3

192bit

Memory Bus

128bit

384.0GB/s

Bandwidth

28.80GB/s

Render Config

40

Compute Units

-

SM Count

2

2560

Shading Units

96

160

TMUs

16

64

ROPs

4

-

40

RT Cores

-

128 KB per Array

L1 Cache

64 KB (per SM)

3 MB

L2 Cache

256 KB

96 MB

L3 Cache

-

Theoretical Performance

153.0 GPixel/s

Pixel Rate

2.640 GPixel/s

382.4 GTexel/s

Texture Rate

10.56 GTexel/s

24.47 TFLOPS

FP16 (half)

-

12.24 TFLOPS

FP32 (float)

253.4 GFLOPS

764.8 GFLOPS

FP64 (double)

21.12 GFLOPS

Board Design

145W

TDP

15W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Navi 22

GPU Name

GF108

Navi 22 XTM

GPU Variant

N13P-GLP-A1

RDNA 2.0

Architecture

Fermi

TSMC

Foundry

TSMC

7 nm

Process Size

40 nm

17.2 billion

Transistors

0.585 billion

335 mm²

Die Size

116 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

1.1

1.3

Vulkan

N/A

-

CUDA

2.1

6.5

Shader Model

5.1

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