AMD Radeon R9 M485X vs NVIDIA GeForce GTX 780M

VS

AMD Radeon R9 M485X

NVIDIA GeForce GTX 780M

We compared two Mobile platform GPUs: 8GB VRAM Radeon R9 M485X and 4GB VRAM GeForce GTX 780M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M485X 's Advantages

Released 3 years late

More VRAM (8GB vs 4GB)

512 additional rendering cores

NVIDIA GeForce GTX 780M 's Advantages

Boost Clock797MHz

Lower TDP (122W vs 250W)

Score

Benchmark

FP32 (float)

Radeon R9 M485X +20%

2.961 TFLOPS

GeForce GTX 780M

2.448 TFLOPS

Radeon R9 M485X

VS

GeForce GTX 780M

Graphics Card

May 2016

Release Date

May 2013

Crystal System

Generation

GeForce 700M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

771 MHz

-

Boost Clock

797 MHz

1250 MHz

Memory Clock

1250 MHz

Memory

8GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

160.0GB/s

Bandwidth

160.0GB/s

Render Config

32

Compute Units

-

2048

Shading Units

1536

128

TMUs

128

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

23.14 GPixel/s

Pixel Rate

25.50 GPixel/s

92.54 GTexel/s

Texture Rate

102.0 GTexel/s

2.961 TFLOPS

FP16 (half)

-

2.961 TFLOPS

FP32 (float)

2.448 TFLOPS

185.1 GFLOPS

FP64 (double)

102.0 GFLOPS

Board Design

250W

TDP

122W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Amethyst

GPU Name

GK104

Amethyst XT

GPU Variant

N14E-GTX-A2

GCN 3.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

5 billion

Transistors

3.54 billion

366 mm²

Die Size

294 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.0

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

6.3

Shader Model

5.1

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