NVIDIA GeForce RTX 4080 Max-Q vs NVIDIA GeForce 820M

VS

NVIDIA GeForce RTX 4080 Max-Q

NVIDIA GeForce 820M

We compared two Mobile platform GPUs: 12GB VRAM GeForce RTX 4080 Max Q and 2GB VRAM GeForce 820M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4080 Max-Q 's Advantages

Released 7 years and 10 months late

Boost Clock1350MHz

More VRAM (12GB vs 2GB)

Larger VRAM bandwidth (336.0GB/s vs 28.83GB/s)

7040 additional rendering cores

NVIDIA GeForce 820M 's Advantages

Lower TDP (45W vs 60W)

Score

Benchmark

FP32 (float)

GeForce RTX 4080 Max Q +3121%

20.04 TFLOPS

GeForce 820M

0.622 TFLOPS

GeForce RTX 4080 Max Q

VS

GeForce 820M

Graphics Card

Jan 2023

Release Date

Mar 2015

GeForce 40 Mobile

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

795 MHz

Base Clock

-

1350 MHz

Boost Clock

-

1750 MHz

Memory Clock

901 MHz

Memory

12GB

Memory Size

2GB

GDDR6

Memory Type

DDR3

192bit

Memory Bus

128bit

336.0GB/s

Bandwidth

28.83GB/s

Render Config

-

58

SM Count

-

7424

Shading Units

384

232

TMUs

32

80

ROPs

16

232

Tensor Cores

-

58

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per SMX)

48 MB

L2 Cache

256 KB

-

Theoretical Performance

108.0 GPixel/s

Pixel Rate

6.480 GPixel/s

313.2 GTexel/s

Texture Rate

25.92 GTexel/s

20.04 TFLOPS

FP16 (half)

-

20.04 TFLOPS

FP32 (float)

622.1 GFLOPS

313.2 GFLOPS

FP64 (double)

25.92 GFLOPS

Board Design

60W

TDP

45W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

AD104

GPU Name

GK107

GN21-X9

GPU Variant

-

Ada Lovelace

Architecture

Kepler

TSMC

Foundry

TSMC

4 nm

Process Size

28 nm

35.8 billion

Transistors

1.27 billion

295 mm²

Die Size

118 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

8.9

CUDA

3.0

6.7

Shader Model

5.1

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