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

VS

NVIDIA GeForce GTX 850M AMD Radeon R9 M295X Mac Edition

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

Main Differences

NVIDIA GeForce GTX 850M 's Advantages

Lower TDP (45W vs 250W)

AMD Radeon R9 M295X Mac Edition 's Advantages

Released 8 months late

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (174.3GB/s vs 32.03GB/s)

1408 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 850M

1.155 TFLOPS

Radeon R9 M295X Mac Edition +201%

3.482 TFLOPS

GeForce GTX 850M

VS

Radeon R9 M295X Mac Edition

Graphics Card

Mar 2014

Release Date

Nov 2014

GeForce 800M

Generation

Crystal System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

-

Boost Clock

-

1001 MHz

Memory Clock

1362 MHz

Memory

2GB

Memory Size

4GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

32.03GB/s

Bandwidth

174.3GB/s

Render Config

-

SM Count

-

Compute Units

32

640

Shading Units

2048

40

TMUs

128

16

ROPs

32

-

Tensor Cores

-

RT Cores

-

64 KB (per SMM)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

512 KB

Theoretical Performance

14.43 GPixel/s

Pixel Rate

27.20 GPixel/s

36.08 GTexel/s

Texture Rate

108.8 GTexel/s

-

FP16 (half)

3.482 TFLOPS

1155 GFLOPS

FP32 (float)

3.482 TFLOPS

36.08 GFLOPS

FP64 (double)

217.6 GFLOPS

Graphics Processor

GM107

GPU Name

Amethyst

N15P-GT-A1

GPU Variant

Amethyst XT

Maxwell

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.87 billion

Transistors

5 billion

148 mm²

Die Size

366 mm²

Board Design

45W

TDP

250W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.0

1.3

Vulkan

1.2

5.0

CUDA

-

5.1

Shader Model

6.3

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