AMD Radeon RX 7900M vs NVIDIA GeForce 820M

VS

AMD Radeon RX 7900M

NVIDIA GeForce 820M

We compared two Mobile platform GPUs: 16GB VRAM Radeon RX 7900M 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 7900M 's Advantages

Released 8 years and 7 months late

Boost Clock2090MHz

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (576.0GB/s vs 28.83GB/s)

4224 additional rendering cores

NVIDIA GeForce 820M 's Advantages

Lower TDP (45W vs 180W)

Score

Benchmark

FP32 (float)

Radeon RX 7900M +6092%

38.52 TFLOPS

GeForce 820M

0.622 TFLOPS

Radeon RX 7900M

VS

GeForce 820M

Graphics Card

Oct 2023

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

-

2090 MHz

Boost Clock

-

2250 MHz

Memory Clock

901 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

DDR3

256bit

Memory Bus

128bit

576.0GB/s

Bandwidth

28.83GB/s

Render Config

72

Compute Units

-

4608

Shading Units

384

288

TMUs

32

192

ROPs

16

-

72

RT Cores

-

256 KB per Array

L1 Cache

16 KB (per SMX)

6 MB

L2 Cache

256 KB

64 MB

L3 Cache

-

Theoretical Performance

401.3 GPixel/s

Pixel Rate

6.480 GPixel/s

601.9 GTexel/s

Texture Rate

25.92 GTexel/s

77.05 TFLOPS

FP16 (half)

-

38.52 TFLOPS

FP32 (float)

622.1 GFLOPS

1204 GFLOPS

FP64 (double)

25.92 GFLOPS

Board Design

180W

TDP

45W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Navi 31

GPU Name

GK107

Navi 31

GPU Variant

-

RDNA 3.0

Architecture

Kepler

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

57.7 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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