AMD Radeon R9 M295X Mac Edition vs NVIDIA GeForce 845M

VS

AMD Radeon R9 M295X Mac Edition NVIDIA GeForce 845M

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M295X Mac Edition and 2GB VRAM GeForce 845M 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

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (174.3GB/s vs 40.10GB/s)

1664 additional rendering cores

NVIDIA GeForce 845M 's Advantages

Released 9 months late

Boost Clock1176MHz

Lower TDP (33W vs 250W)

Score

Benchmark

FP32 (float)

Radeon R9 M295X Mac Edition +285%

3.482 TFLOPS

GeForce 845M

0.903 TFLOPS

Radeon R9 M295X Mac Edition

VS

GeForce 845M

Graphics Card

Nov 2014

Release Date

Aug 2015

Crystal System

Generation

GeForce 800M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1071 MHz

-

Boost Clock

1176 MHz

1362 MHz

Memory Clock

1253 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

64bit

174.3GB/s

Bandwidth

40.10GB/s

Render Config

-

SM Count

-

32

Compute Units

-

2048

Shading Units

384

128

TMUs

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

64 KB (per SMM)

512 KB

L2 Cache

1024 KB

Theoretical Performance

27.20 GPixel/s

Pixel Rate

18.82 GPixel/s

108.8 GTexel/s

Texture Rate

37.63 GTexel/s

3.482 TFLOPS

FP16 (half)

-

3.482 TFLOPS

FP32 (float)

903.2 GFLOPS

217.6 GFLOPS

FP64 (double)

28.22 GFLOPS

Graphics Processor

Amethyst

GPU Name

GM108

Amethyst XT

GPU Variant

-

GCN 3.0

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

5 billion

Transistors

Unknown

366 mm²

Die Size

Unknown

Board Design

250W

TDP

33W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

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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