AMD Radeon R7 M340 vs AMD Radeon RX 6600S

VS

AMD Radeon R7 M340

AMD Radeon RX 6600S

We compared two Mobile platform GPUs: 1024MB VRAM Radeon R7 M340 and 4GB VRAM Radeon RX 6600S to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600S 's Advantages

Released 6 years and 1 months late

Boost Clock has increased by 180% (2000MHz vs 715MHz)

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (224.0GB/s vs 16.00GB/s)

1408 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R7 M340

0.549 TFLOPS

Radeon RX 6600S +1205%

7.168 TFLOPS

Radeon R7 M340

VS

Radeon RX 6600S

Graphics Card

Dec 2015

Release Date

Jan 2022

Gem System

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 4.0 x8

Clock Speeds

620 MHz

Base Clock

1700 MHz

715 MHz

Boost Clock

2000 MHz

1000 MHz

Memory Clock

1750 MHz

Memory

1024MB

Memory Size

4GB

DDR3

Memory Type

GDDR6

64bit

Memory Bus

128bit

16.00GB/s

Bandwidth

224.0GB/s

Render Config

6

Compute Units

28

-

384

Shading Units

1792

24

TMUs

112

8

ROPs

64

-

RT Cores

28

16 KB (per CU)

L1 Cache

128 KB per Array

256 KB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

5.720 GPixel/s

Pixel Rate

128.0 GPixel/s

17.16 GTexel/s

Texture Rate

224.0 GTexel/s

-

FP16 (half)

14.34 TFLOPS

549.1 GFLOPS

FP32 (float)

7.168 TFLOPS

34.32 GFLOPS

FP64 (double)

448.0 GFLOPS

Board Design

Unknown

TDP

80W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Opal

GPU Name

Navi 23

Opal PRO

GPU Variant

-

GCN 1.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

0.95 billion

Transistors

11.06 billion

77 mm²

Die Size

237 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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