AMD Radeon RX 6800M vs ATI Mobility Radeon HD 3850

VS

AMD Radeon RX 6800M ATI Mobility Radeon HD 3850

We compared two Mobile platform GPUs: 12GB VRAM Radeon RX 6800M and 512MB VRAM Mobility Radeon HD 3850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6800M 's Advantages

Released 12 years and 11 months late

Boost Clock2390MHz

Larger VRAM bandwidth (384.0GB/s vs 48.00GB/s)

2240 additional rendering cores

ATI Mobility Radeon HD 3850 's Advantages

Lower TDP (35W vs 145W)

Score

Benchmark

FP32 (float)

Radeon RX 6800M +3199%

12.24 TFLOPS

Mobility Radeon HD 3850

0.371 TFLOPS

Radeon RX 6800M

VS

Mobility Radeon HD 3850

Graphics Card

May 2021

Release Date

Jun 2008

Mobility Radeon

Generation

M8x

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

2116 MHz

Base Clock

-

2390 MHz

Boost Clock

-

2000 MHz

Memory Clock

750 MHz

Memory

12GB

Memory Size

512MB

GDDR6

Memory Type

GDDR3

192bit

Memory Bus

256bit

384.0GB/s

Bandwidth

48.00GB/s

Render Config

-

SM Count

-

40

Compute Units

4

2560

Shading Units

320

160

TMUs

16

64

ROPs

16

-

Tensor Cores

-

40

RT Cores

-

128 KB per Array

L1 Cache

-

3 MB

L2 Cache

256 KB

Theoretical Performance

153.0 GPixel/s

Pixel Rate

9.280 GPixel/s

382.4 GTexel/s

Texture Rate

9.280 GTexel/s

24.47 TFLOPS

FP16 (half)

-

12.24 TFLOPS

FP32 (float)

371.2 GFLOPS

764.8 GFLOPS

FP64 (double)

74.24 GFLOPS

Graphics Processor

Navi 22

GPU Name

M88

Navi 22 XTM

GPU Variant

-

RDNA 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

7 nm

Process Size

55 nm

17.2 billion

Transistors

0.666 billion

335 mm²

Die Size

192 mm²

Board Design

145W

TDP

35W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1

OpenCL

N/A

1.3

Vulkan

N/A

-

CUDA

-

6.5

Shader Model

4.1

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