NVIDIA GeForce GTX 980MX vs AMD Radeon HD 6990M Rebrand

VS

NVIDIA GeForce GTX 980MX

AMD Radeon HD 6990M Rebrand

We compared two Mobile platform GPUs: 8GB VRAM GeForce GTX 980MX and 1024MB VRAM Radeon HD 6990M Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 980MX 's Advantages

Released 4 years and 11 months late

Boost Clock1178MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (192.0GB/s vs 70.40GB/s)

864 additional rendering cores

AMD Radeon HD 6990M Rebrand 's Advantages

Lower TDP (100W vs 148W)

Score

Benchmark

FP32 (float)

GeForce GTX 980MX +206%

3.92 TFLOPS

Radeon HD 6990M Rebrand

1.28 TFLOPS

GeForce GTX 980MX

VS

Radeon HD 6990M Rebrand

Graphics Card

Jun 2016

Release Date

Jul 2011

GeForce 900M

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

1050 MHz

Base Clock

-

1178 MHz

Boost Clock

-

1500 MHz

Memory Clock

1100 MHz

Memory

8GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

192.0GB/s

Bandwidth

70.40GB/s

Render Config

-

Compute Units

14

-

1664

Shading Units

800

104

TMUs

40

64

ROPs

16

-

48 KB (per SMM)

L1 Cache

8 KB (per CU)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

75.39 GPixel/s

Pixel Rate

12.80 GPixel/s

122.5 GTexel/s

Texture Rate

32.00 GTexel/s

-

3.920 TFLOPS

FP32 (float)

1280 GFLOPS

122.5 GFLOPS

FP64 (double)

-

Board Design

148W

TDP

100W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

GM204

GPU Name

Broadway

N16E-GXX-A1

GPU Variant

Broadway XTX

Maxwell 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

5.2 billion

Transistors

1.04 billion

398 mm²

Die Size

166 mm²

Graphics Features

12 (12_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.3

Vulkan

N/A

5.2

CUDA

-

6.4

Shader Model

5.0

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