AMD Radeon HD 8670M vs NVIDIA GeForce GTX 950M Mac Edition

VS

AMD Radeon HD 8670M

NVIDIA GeForce GTX 950M Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 8670M and 2GB VRAM GeForce GTX 950M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 950M Mac Edition 's Advantages

Released 2 years late

Boost Clock has increased by 15% (1124MHz vs 975MHz)

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (28.80GB/s vs 14.40GB/s)

320 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8670M

0.624 TFLOPS

GeForce GTX 950M Mac Edition +130%

1.439 TFLOPS

Radeon HD 8670M

VS

GeForce GTX 950M Mac Edition

Graphics Card

Mar 2013

Release Date

Mar 2015

Solar System

Generation

GeForce 900M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-B (3.0)

Clock Speeds

925 MHz

Base Clock

993 MHz

975 MHz

Boost Clock

1124 MHz

900 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

DDR3

64bit

Memory Bus

128bit

14.40GB/s

Bandwidth

28.80GB/s

Render Config

5

Compute Units

-

320

Shading Units

640

20

TMUs

40

8

ROPs

16

-

16 KB (per CU)

L1 Cache

64 KB (per SMM)

128 KB

L2 Cache

2 MB

-

Theoretical Performance

7.800 GPixel/s

Pixel Rate

17.98 GPixel/s

19.50 GTexel/s

Texture Rate

44.96 GTexel/s

-

624.0 GFLOPS

FP32 (float)

1439 GFLOPS

39.00 GFLOPS

FP64 (double)

44.96 GFLOPS

Board Design

Unknown

TDP

75W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Sun

GPU Name

GM107

Sun S3 XT (216-0841009)

GPU Variant

N16P-GT

GCN 1.0

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.69 billion

Transistors

1.87 billion

56 mm²

Die Size

148 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

3.0

1.2.170

Vulkan

1.3

-

CUDA

5.0

6.5 (5.1)

Shader Model

5.1

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