AMD Radeon RX 6800S vs AMD Radeon R9 M385X

VS

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 6800S and 4GB VRAM Radeon R9 M385X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6800S 's Advantages

Released 6 years and 8 months late

Boost Clock has increased by 91% (2100MHz vs 1100MHz)

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (256.0GB/s vs 76.80GB/s)

1152 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6800S +336%

8.602 TFLOPS

Radeon R9 M385X

1.971 TFLOPS

Radeon RX 6800S

VS

Radeon R9 M385X

Graphics Card

Jan 2022

Release Date

May 2015

Mobility Radeon

Generation

Gem System

Mobile

Type

Mobile

PCIe 4.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1800 MHz

Base Clock

1000 MHz

2100 MHz

Boost Clock

1100 MHz

2000 MHz

Memory Clock

1200 MHz

Memory

8GB

Memory Size

4GB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

128bit

256.0GB/s

Bandwidth

76.80GB/s

Render Config

-

SM Count

-

32

Compute Units

14

2048

Shading Units

896

128

TMUs

56

64

ROPs

16

-

Tensor Cores

-

32

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

256 KB

Theoretical Performance

134.4 GPixel/s

Pixel Rate

17.60 GPixel/s

268.8 GTexel/s

Texture Rate

61.60 GTexel/s

17.20 TFLOPS

FP16 (half)

-

8.602 TFLOPS

FP32 (float)

1.971 TFLOPS

537.6 GFLOPS

FP64 (double)

123.2 GFLOPS

Graphics Processor

Navi 23

GPU Name

Strato

-

GPU Variant

Strato XT

RDNA 2.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

11.06 billion

Transistors

2.08 billion

237 mm²

Die Size

160 mm²

Board Design

100W

TDP

Unknown

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.3

Vulkan

1.2.170

-

CUDA

-

6.5

Shader Model

6.5

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