NVIDIA GeForce GTX 870M vs AMD Radeon RX 6600S

VS

NVIDIA GeForce GTX 870M

AMD Radeon RX 6600S

We compared two Mobile platform GPUs: 3GB VRAM GeForce GTX 870M 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 7 years and 10 months late

Boost Clock has increased by 107% (2000MHz vs 967MHz)

More VRAM (4GB vs 3GB)

Larger VRAM bandwidth (224.0GB/s vs 120.0GB/s)

448 additional rendering cores

Lower TDP (80W vs 100W)

Score

Benchmark

FP32 (float)

GeForce GTX 870M

2.599 TFLOPS

Radeon RX 6600S +175%

7.168 TFLOPS

GeForce GTX 870M

VS

Radeon RX 6600S

Graphics Card

Mar 2014

Release Date

Jan 2022

GeForce 800M

Generation

Mobility Radeon

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 4.0 x8

Clock Speeds

941 MHz

Base Clock

1700 MHz

967 MHz

Boost Clock

2000 MHz

1250 MHz

Memory Clock

1750 MHz

Memory

3GB

Memory Size

4GB

GDDR5

Memory Type

GDDR6

192bit

Memory Bus

128bit

120.0GB/s

Bandwidth

224.0GB/s

Render Config

-

Compute Units

28

-

1344

Shading Units

1792

112

TMUs

112

24

ROPs

64

-

RT Cores

28

16 KB (per SMX)

L1 Cache

128 KB per Array

384 KB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

27.08 GPixel/s

Pixel Rate

128.0 GPixel/s

108.3 GTexel/s

Texture Rate

224.0 GTexel/s

-

FP16 (half)

14.34 TFLOPS

2.599 TFLOPS

FP32 (float)

7.168 TFLOPS

108.3 GFLOPS

FP64 (double)

448.0 GFLOPS

Board Design

100W

TDP

80W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

GK104

GPU Name

Navi 23

N15E-GT-A2

GPU Variant

-

Kepler

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

3.54 billion

Transistors

11.06 billion

294 mm²

Die Size

237 mm²

Graphics Features

12 (11_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.1

Vulkan

1.3

3.0

CUDA

-

5.1

Shader Model

6.5

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