AMD Radeon HD 8670M vs AMD Radeon RX 6700M

VS

AMD Radeon HD 8670M

AMD Radeon RX 6700M

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 8670M and 10GB VRAM Radeon RX 6700M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6700M 's Advantages

Released 8 years and 2 months late

Boost Clock has increased by 146% (2400MHz vs 975MHz)

More VRAM (10GB vs 1024GB)

Larger VRAM bandwidth (320.0GB/s vs 14.40GB/s)

1984 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8670M

0.624 TFLOPS

Radeon RX 6700M +1672%

11.06 TFLOPS

Radeon HD 8670M

VS

Radeon RX 6700M

Graphics Card

Mar 2013

Release Date

May 2021

Solar System

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 4.0 x16

Clock Speeds

925 MHz

Base Clock

1489 MHz

975 MHz

Boost Clock

2400 MHz

900 MHz

Memory Clock

2000 MHz

Memory

1024MB

Memory Size

10GB

DDR3

Memory Type

GDDR6

64bit

Memory Bus

160bit

14.40GB/s

Bandwidth

320.0GB/s

Render Config

5

Compute Units

36

-

320

Shading Units

2304

20

TMUs

144

8

ROPs

64

-

RT Cores

36

16 KB (per CU)

L1 Cache

128 KB per Array

128 KB

L2 Cache

3 MB

-

L3 Cache

80 MB

Theoretical Performance

7.800 GPixel/s

Pixel Rate

153.6 GPixel/s

19.50 GTexel/s

Texture Rate

345.6 GTexel/s

-

FP16 (half)

22.12 TFLOPS

624.0 GFLOPS

FP32 (float)

11.06 TFLOPS

39.00 GFLOPS

FP64 (double)

691.2 GFLOPS

Board Design

Unknown

TDP

135W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Sun

GPU Name

Navi 22

Sun S3 XT (216-0841009)

GPU Variant

Navi 22

GCN 1.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

0.69 billion

Transistors

17.2 billion

56 mm²

Die Size

335 mm²

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

2.1

1.2.170

Vulkan

1.3

-

6.5 (5.1)

Shader Model

6.5

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