NVIDIA GeForce RTX 4090 Max-Q vs NVIDIA GeForce GTX 850A

VS

NVIDIA GeForce RTX 4090 Max-Q

NVIDIA GeForce GTX 850A

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 4090 Max Q and 2GB VRAM GeForce GTX 850A 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 8 years and 10 months late

Boost Clock has increased by 55% (1455MHz vs 936MHz)

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (448.0GB/s vs 28.80GB/s)

9088 additional rendering cores

NVIDIA GeForce GTX 850A 's Advantages

Lower TDP (45W vs 80W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 Max Q +2263%

28.31 TFLOPS

GeForce GTX 850A

1.198 TFLOPS

GeForce RTX 4090 Max Q

VS

GeForce GTX 850A

Graphics Card

Jan 2023

Release Date

Mar 2014

GeForce 40 Mobile

Generation

GeForce 800A

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

930 MHz

Base Clock

902 MHz

1455 MHz

Boost Clock

936 MHz

1750 MHz

Memory Clock

900 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

DDR3

256bit

Memory Bus

128bit

448.0GB/s

Bandwidth

28.80GB/s

Render Config

-

76

SM Count

-

9728

Shading Units

640

304

TMUs

40

112

ROPs

16

304

Tensor Cores

-

76

RT Cores

-

128 KB (per SM)

L1 Cache

64 KB (per SMM)

64 MB

L2 Cache

2 MB

-

Theoretical Performance

163.0 GPixel/s

Pixel Rate

14.98 GPixel/s

442.3 GTexel/s

Texture Rate

37.44 GTexel/s

28.31 TFLOPS

FP16 (half)

-

28.31 TFLOPS

FP32 (float)

1198 GFLOPS

442.3 GFLOPS

FP64 (double)

37.44 GFLOPS

Board Design

80W

TDP

45W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

AD103

GPU Name

GM107

GN21-X11

GPU Variant

N15P-GT-A1

Ada Lovelace

Architecture

Maxwell

TSMC

Foundry

TSMC

4 nm

Process Size

28 nm

45.9 billion

Transistors

1.87 billion

379 mm²

Die Size

148 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.3

8.9

CUDA

5.0

6.7

Shader Model

5.1

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