AMD Radeon R9 M295X Mac Edition vs NVIDIA GeForce GTX 850A

VS

AMD Radeon R9 M295X Mac Edition

NVIDIA GeForce GTX 850A

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M295X Mac Edition and 2GB VRAM GeForce GTX 850A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M295X Mac Edition 's Advantages

Released 8 months late

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (174.3GB/s vs 28.80GB/s)

1408 additional rendering cores

NVIDIA GeForce GTX 850A 's Advantages

Boost Clock936MHz

Lower TDP (45W vs 250W)

Score

Benchmark

FP32 (float)

Radeon R9 M295X Mac Edition +190%

3.482 TFLOPS

GeForce GTX 850A

1.198 TFLOPS

Radeon R9 M295X Mac Edition

VS

GeForce GTX 850A

Graphics Card

Nov 2014

Release Date

Mar 2014

Crystal System

Generation

GeForce 800A

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

902 MHz

-

Boost Clock

936 MHz

1362 MHz

Memory Clock

900 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

174.3GB/s

Bandwidth

28.80GB/s

Render Config

32

Compute Units

-

2048

Shading Units

640

128

TMUs

40

32

ROPs

16

-

16 KB (per CU)

L1 Cache

64 KB (per SMM)

512 KB

L2 Cache

2 MB

-

Theoretical Performance

27.20 GPixel/s

Pixel Rate

14.98 GPixel/s

108.8 GTexel/s

Texture Rate

37.44 GTexel/s

3.482 TFLOPS

FP16 (half)

-

3.482 TFLOPS

FP32 (float)

1198 GFLOPS

217.6 GFLOPS

FP64 (double)

37.44 GFLOPS

Board Design

250W

TDP

45W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Amethyst

GPU Name

GM107

Amethyst XT

GPU Variant

N15P-GT-A1

GCN 3.0

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

5 billion

Transistors

1.87 billion

366 mm²

Die Size

148 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.0

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

5.0

6.3

Shader Model

5.1

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