AMD Radeon RX 7800M vs NVIDIA GeForce 820M

VS

AMD Radeon RX 7800M

NVIDIA GeForce 820M

We compared two Mobile platform GPUs: 12GB VRAM Radeon RX 7800M and 2GB VRAM GeForce 820M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7800M 's Advantages

Released 9 years and 6 months late

Boost Clock2145MHz

More VRAM (12GB vs 2GB)

Larger VRAM bandwidth (432GB/s vs 28.83GB/s)

3456 additional rendering cores

NVIDIA GeForce 820M 's Advantages

Lower TDP (45W vs 180W)

Score

Benchmark

FP32 (float)

Radeon RX 7800M +5666%

35.87 TFLOPS

GeForce 820M

0.622 TFLOPS

Radeon RX 7800M

VS

GeForce 820M

Graphics Card

Sep 2024

Release Date

Mar 2015

Navi Mobile

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1825 MHz

Base Clock

-

2145 MHz

Boost Clock

-

2250 MHz

Memory Clock

901 MHz

Memory

12GB

Memory Size

2GB

GDDR6

Memory Type

DDR3

192bit

Memory Bus

128bit

432GB/s

Bandwidth

28.83GB/s

Render Config

60

Compute Units

-

3840

Shading Units

384

240

TMUs

32

96

ROPs

16

-

60

RT Cores

-

256 KB per Array

L1 Cache

16 KB (per SMX)

6 MB

L2 Cache

256 KB

48 MB

L3 Cache

-

Theoretical Performance

401.3 GPixel/s

Pixel Rate

6.480 GPixel/s

560.4 GTexel/s

Texture Rate

25.92 GTexel/s

71.73 TFLOPS

FP16 (half)

-

35.87 TFLOPS

FP32 (float)

622.1 GFLOPS

1121 GFLOPS

FP64 (double)

25.92 GFLOPS

Board Design

180W

TDP

45W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Navi 32

GPU Name

GK107

Navi 32

GPU Variant

-

RDNA 3.0

Architecture

Kepler

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

28.1 billion

Transistors

1.27 billion

529 mm²

Die Size

118 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.2

OpenCL

3.0

1.3

Vulkan

1.1

-

CUDA

3.0

6.7

Shader Model

5.1

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