AMD Radeon R9 M295X Mac Edition vs NVIDIA GeForce 800M

VS

AMD Radeon R9 M295X Mac Edition NVIDIA GeForce 800M

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M295X Mac Edition and 1024MB VRAM GeForce 800M 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 1GB)

Larger VRAM bandwidth (174.3GB/s vs 14.40GB/s)

2000 additional rendering cores

NVIDIA GeForce 800M 's Advantages

Lower TDP (15W vs 250W)

Score

Benchmark

FP32 (float)

Radeon R9 M295X Mac Edition +2352%

3.482 TFLOPS

GeForce 800M

0.142 TFLOPS

Radeon R9 M295X Mac Edition

VS

GeForce 800M

Graphics Card

Nov 2014

Release Date

Mar 2014

Crystal System

Generation

GeForce 800M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1362 MHz

Memory Clock

900 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

174.3GB/s

Bandwidth

14.40GB/s

Render Config

-

SM Count

1

32

Compute Units

-

2048

Shading Units

48

128

TMUs

8

32

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

128 KB

Theoretical Performance

27.20 GPixel/s

Pixel Rate

1.476 GPixel/s

108.8 GTexel/s

Texture Rate

5.904 GTexel/s

3.482 TFLOPS

FP16 (half)

-

3.482 TFLOPS

FP32 (float)

141.7 GFLOPS

217.6 GFLOPS

FP64 (double)

11.81 GFLOPS

Graphics Processor

Amethyst

GPU Name

GF117

Amethyst XT

GPU Variant

N14M-GL

GCN 3.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

5 billion

Transistors

0.585 billion

366 mm²

Die Size

116 mm²

Board Design

250W

TDP

15W

-

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

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

6.3

Shader Model

5.1

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