AMD Radeon RX 6600M vs AMD Radeon R9 M275X

VS

AMD Radeon RX 6600M

AMD Radeon R9 M275X

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 6600M and 2GB VRAM Radeon R9 M275X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600M 's Advantages

Released 7 years and 4 months late

Boost Clock has increased by 161% (2416MHz vs 925MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (224.0GB/s vs 72.00GB/s)

1152 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6600M +631%

8.659 TFLOPS

Radeon R9 M275X

1.184 TFLOPS

Radeon RX 6600M

VS

Radeon R9 M275X

Graphics Card

May 2021

Release Date

Jan 2014

Mobility Radeon

Generation

Gem System

Mobile

Type

Mobile

PCIe 4.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

2068 MHz

Base Clock

900 MHz

2416 MHz

Boost Clock

925 MHz

1750 MHz

Memory Clock

1125 MHz

Memory

8GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

128bit

224.0GB/s

Bandwidth

72.00GB/s

Render Config

28

Compute Units

10

-

1792

Shading Units

640

112

TMUs

40

64

ROPs

16

-

28

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

256 KB

32 MB

L3 Cache

-

Theoretical Performance

154.6 GPixel/s

Pixel Rate

14.80 GPixel/s

270.6 GTexel/s

Texture Rate

37.00 GTexel/s

17.32 TFLOPS

FP16 (half)

-

8.659 TFLOPS

FP32 (float)

1184 GFLOPS

541.2 GFLOPS

FP64 (double)

74.00 GFLOPS

Board Design

100W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

Navi 23

GPU Name

Venus

-

GPU Variant

Venus XTX (216-0846033)

RDNA 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

11.06 billion

Transistors

1.5 billion

237 mm²

Die Size

123 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

2.1 (1.2)

1.3

Vulkan

1.2.170

-

6.5

Shader Model

6.5 (5.1)

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