NVIDIA GeForce 840A vs AMD Radeon RX 7900M

VS

NVIDIA GeForce 840A

AMD Radeon RX 7900M

We compared two Mobile platform GPUs: 2GB VRAM GeForce 840A and 16GB VRAM Radeon RX 7900M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 840A 's Advantages

Lower TDP (33W vs 180W)

AMD Radeon RX 7900M 's Advantages

Released 9 years and 7 months late

Boost Clock has increased by 86% (2090MHz vs 1124MHz)

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (576.0GB/s vs 16.02GB/s)

4224 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 840A

0.863 TFLOPS

Radeon RX 7900M +4363%

38.52 TFLOPS

GeForce 840A

VS

Radeon RX 7900M

Graphics Card

Mar 2014

Release Date

Oct 2023

GeForce 800A

Generation

Navi Mobile

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 4.0 x16

Clock Speeds

1029 MHz

Base Clock

1825 MHz

1124 MHz

Boost Clock

2090 MHz

1001 MHz

Memory Clock

2250 MHz

Memory

2GB

Memory Size

16GB

DDR3

Memory Type

GDDR6

64bit

Memory Bus

256bit

16.02GB/s

Bandwidth

576.0GB/s

Render Config

-

Compute Units

72

-

384

Shading Units

4608

16

TMUs

288

8

ROPs

192

-

RT Cores

72

64 KB (per SMM)

L1 Cache

256 KB per Array

1024 KB

L2 Cache

6 MB

-

L3 Cache

64 MB

Theoretical Performance

8.992 GPixel/s

Pixel Rate

401.3 GPixel/s

17.98 GTexel/s

Texture Rate

601.9 GTexel/s

-

FP16 (half)

77.05 TFLOPS

863.2 GFLOPS

FP32 (float)

38.52 TFLOPS

26.98 GFLOPS

FP64 (double)

1204 GFLOPS

Board Design

33W

TDP

180W

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

GM108

GPU Name

Navi 31

-

GPU Variant

Navi 31

Maxwell

Architecture

RDNA 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

5 nm

Unknown

Transistors

57.7 billion

Unknown

Die Size

529 mm²

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.2

1.3

Vulkan

1.3

5.0

CUDA

-

5.1

Shader Model

6.7

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