NVIDIA GeForce GTX 660M Mac Edition vs AMD Radeon RX 6850M XT

VS

NVIDIA GeForce GTX 660M Mac Edition AMD Radeon RX 6850M XT

We compared two Mobile platform GPUs: 512MB VRAM GeForce GTX 660M Mac Edition and 12GB VRAM Radeon RX 6850M XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660M Mac Edition 's Advantages

Lower TDP (50W vs 165W)

AMD Radeon RX 6850M XT 's Advantages

Released 8 years and 9 months late

Boost Clock2581MHz

Larger VRAM bandwidth (384.0GB/s vs 80.00GB/s)

2176 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 660M Mac Edition

0.73 TFLOPS

Radeon RX 6850M XT +1709%

13.21 TFLOPS

GeForce GTX 660M Mac Edition

VS

Radeon RX 6850M XT

Graphics Card

Apr 2013

Release Date

Jan 2022

GeForce 600M

Generation

Mobility Radeon

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

2321 MHz

-

Boost Clock

2581 MHz

1250 MHz

Memory Clock

2000 MHz

Memory

512MB

Memory Size

12GB

GDDR5

Memory Type

GDDR6

128bit

Memory Bus

192bit

80.00GB/s

Bandwidth

384.0GB/s

Render Config

-

SM Count

-

Compute Units

40

384

Shading Units

2560

32

TMUs

160

16

ROPs

64

-

Tensor Cores

-

RT Cores

40

16 KB (per SMX)

L1 Cache

128 KB per Array

256 KB

L2 Cache

3 MB

Theoretical Performance

7.600 GPixel/s

Pixel Rate

165.2 GPixel/s

30.40 GTexel/s

Texture Rate

413.0 GTexel/s

-

FP16 (half)

26.43 TFLOPS

729.6 GFLOPS

FP32 (float)

13.21 TFLOPS

30.40 GFLOPS

FP64 (double)

825.9 GFLOPS

Graphics Processor

GK107

GPU Name

Navi 22

-

GPU Variant

Navi 22 XTM

Kepler

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

1.27 billion

Transistors

17.2 billion

118 mm²

Die Size

335 mm²

Board Design

50W

TDP

165W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

None

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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