AMD Radeon RX 6800M vs ATI Mobility Radeon HD 4850

VS

AMD Radeon RX 6800M

ATI Mobility Radeon HD 4850

We compared two Mobile platform GPUs: 12GB VRAM Radeon RX 6800M and 1024MB VRAM Mobility Radeon HD 4850 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 4 months late

Boost Clock2390MHz

More VRAM (12GB vs 1024GB)

Larger VRAM bandwidth (384.0GB/s vs 54.40GB/s)

1760 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6800M +1422%

12.24 TFLOPS

Mobility Radeon HD 4850

0.804 TFLOPS

Radeon RX 6800M

VS

Mobility Radeon HD 4850

Graphics Card

May 2021

Release Date

Jan 2009

Mobility Radeon

Generation

M9x

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

850 MHz

Memory

12GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR3

192bit

Memory Bus

256bit

384.0GB/s

Bandwidth

54.40GB/s

Render Config

40

Compute Units

10

-

2560

Shading Units

800

160

TMUs

40

64

ROPs

16

-

40

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

3 MB

L2 Cache

256 KB

96 MB

L3 Cache

-

Theoretical Performance

153.0 GPixel/s

Pixel Rate

8.048 GPixel/s

382.4 GTexel/s

Texture Rate

20.12 GTexel/s

24.47 TFLOPS

FP16 (half)

-

12.24 TFLOPS

FP32 (float)

804.8 GFLOPS

764.8 GFLOPS

FP64 (double)

161.0 GFLOPS

Board Design

145W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

Navi 22

GPU Name

M98

Navi 22 XTM

GPU Variant

M98 L2 (216-0732019)

RDNA 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

7 nm

Process Size

55 nm

17.2 billion

Transistors

0.956 billion

335 mm²

Die Size

256 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1

OpenCL

1.1

1.3

Vulkan

N/A

-

6.5

Shader Model

4.1

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