AMD Radeon HD 8670A vs AMD Radeon RX 6800M

VS

AMD Radeon HD 8670A

AMD Radeon RX 6800M

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 8670A and 12GB VRAM Radeon RX 6800M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8670A 's Advantages

Lower TDP (45W vs 145W)

AMD Radeon RX 6800M 's Advantages

Released 8 years and 3 months late

Boost Clock2390MHz

More VRAM (12GB vs 1024GB)

Larger VRAM bandwidth (384.0GB/s vs 16.00GB/s)

2176 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8670A

0.461 TFLOPS

Radeon RX 6800M +2555%

12.24 TFLOPS

Radeon HD 8670A

VS

Radeon RX 6800M

Graphics Card

Feb 2013

Release Date

May 2021

All-In-One

Generation

Mobility Radeon

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

2116 MHz

-

Boost Clock

2390 MHz

1000 MHz

Memory Clock

2000 MHz

Memory

1024MB

Memory Size

12GB

DDR3

Memory Type

GDDR6

64bit

Memory Bus

192bit

16.00GB/s

Bandwidth

384.0GB/s

Render Config

6

Compute Units

40

-

384

Shading Units

2560

24

TMUs

160

8

ROPs

64

-

RT Cores

40

16 KB (per CU)

L1 Cache

128 KB per Array

128 KB

L2 Cache

3 MB

-

L3 Cache

96 MB

Theoretical Performance

4.800 GPixel/s

Pixel Rate

153.0 GPixel/s

14.40 GTexel/s

Texture Rate

382.4 GTexel/s

-

FP16 (half)

24.47 TFLOPS

460.8 GFLOPS

FP32 (float)

12.24 TFLOPS

28.80 GFLOPS

FP64 (double)

764.8 GFLOPS

Board Design

45W

TDP

145W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Mars

GPU Name

Navi 22

Mars XT

GPU Variant

Navi 22 XTM

GCN 1.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

0.95 billion

Transistors

17.2 billion

77 mm²

Die Size

335 mm²

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.3

-

5.1

Shader Model

6.5

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