NVIDIA GeForce RTX 4090 Max-Q vs NVIDIA GeForce RTX 3080

VS

NVIDIA GeForce RTX 4090 Max-Q NVIDIA GeForce RTX 3080

We compared a Mobile platform GPU: 16GB VRAM GeForce RTX 4090 Max Q and a Desktop platform GPU: 10GB VRAM GeForce RTX 3080 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4090 Max-Q 's Advantages

Released 2 years and 4 months late

More VRAM (16GB vs 10GB)

1024 additional rendering cores

Lower TDP (80W vs 320W)

NVIDIA GeForce RTX 3080 's Advantages

Boost Clock has increased by 18% (1710MHz vs 1455MHz)

Larger VRAM bandwidth (760.3GB/s vs 448.0GB/s)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 Max Q

28.31 TFLOPS

GeForce RTX 3080 +5%

29.77 TFLOPS

GeForce RTX 4090 Max Q

VS

GeForce RTX 3080

Graphics Card

Jan 2023

Release Date

Sep 2020

GeForce 40 Mobile

Generation

GeForce 30

Mobile

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

930 MHz

Base Clock

1440 MHz

1455 MHz

Boost Clock

1710 MHz

1750 MHz

Memory Clock

1188 MHz

Memory

16GB

Memory Size

10GB

GDDR6

Memory Type

GDDR6X

256bit

Memory Bus

320bit

448.0GB/s

Bandwidth

760.3GB/s

Render Config

76

SM Count

68

-

Compute Units

-

9728

Shading Units

8704

304

TMUs

272

112

ROPs

96

304

Tensor Cores

272

76

RT Cores

68

128 KB (per SM)

L1 Cache

128 KB (per SM)

64 MB

L2 Cache

5 MB

Theoretical Performance

163.0 GPixel/s

Pixel Rate

164.2 GPixel/s

442.3 GTexel/s

Texture Rate

465.1 GTexel/s

28.31 TFLOPS

FP16 (half)

29.77 TFLOPS

28.31 TFLOPS

FP32 (float)

29.77 TFLOPS

442.3 GFLOPS

FP64 (double)

465.1 GFLOPS

Graphics Processor

AD103

GPU Name

GA102

GN21-X11

GPU Variant

GA102-200-KD-A1

Ada Lovelace

Architecture

Ampere

TSMC

Foundry

Samsung

4 nm

Process Size

8 nm

45.9 billion

Transistors

28.3 billion

379 mm²

Die Size

628 mm²

Board Design

80W

TDP

320W

-

Suggested PSU

700 W

Portable Device Dependent

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

None

Power Connectors

1x 12-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.3

8.9

CUDA

8.6

6.7

Shader Model

6.6

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