NVIDIA GeForce GT 820M vs NVIDIA GeForce RTX 4080 Mobile

VS

NVIDIA GeForce GT 820M NVIDIA GeForce RTX 4080 Mobile

We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 820M and 12GB VRAM GeForce RTX 4080 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 820M 's Advantages

Lower TDP (15W vs 110W)

NVIDIA GeForce RTX 4080 Mobile 's Advantages

Released 9 years and 2 months late

Boost Clock1665MHz

More VRAM (12GB vs 1GB)

Larger VRAM bandwidth (432.0GB/s vs 14.40GB/s)

7328 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 820M

0.298 TFLOPS

GeForce RTX 4080 Mobile +8195%

24.72 TFLOPS

GeForce GT 820M

VS

GeForce RTX 4080 Mobile

Graphics Card

Nov 2013

Release Date

Jan 2023

GeForce 800M

Generation

GeForce 40 Mobile

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1290 MHz

-

Boost Clock

1665 MHz

900 MHz

Memory Clock

2250 MHz

Memory

1024MB

Memory Size

12GB

DDR3

Memory Type

GDDR6

64bit

Memory Bus

192bit

14.40GB/s

Bandwidth

432.0GB/s

Render Config

2

SM Count

58

-

Compute Units

-

96

Shading Units

7424

16

TMUs

232

8

ROPs

80

-

Tensor Cores

232

-

RT Cores

58

64 KB (per SM)

L1 Cache

128 KB (per SM)

128 KB

L2 Cache

48 MB

Theoretical Performance

3.100 GPixel/s

Pixel Rate

133.2 GPixel/s

12.40 GTexel/s

Texture Rate

386.3 GTexel/s

-

FP16 (half)

24.72 TFLOPS

297.6 GFLOPS

FP32 (float)

24.72 TFLOPS

24.80 GFLOPS

FP64 (double)

386.3 GFLOPS

Graphics Processor

GF117

GPU Name

AD104

N15V-GM

GPU Variant

GN21-X9

Fermi 2.0

Architecture

Ada Lovelace

TSMC

Foundry

TSMC

28 nm

Process Size

4 nm

0.585 billion

Transistors

35.8 billion

116 mm²

Die Size

295 mm²

Board Design

15W

TDP

110W

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.3

2.1

CUDA

8.9

5.1

Shader Model

6.7

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