NVIDIA GeForce GTX 980MX vs AMD Radeon HD 6990M

VS

NVIDIA GeForce GTX 980MX AMD Radeon HD 6990M

We compared two Mobile platform GPUs: 8GB VRAM GeForce GTX 980MX and 2GB VRAM Radeon HD 6990M 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 2GB)

Larger VRAM bandwidth (192.0GB/s vs 115.2GB/s)

544 additional rendering cores

AMD Radeon HD 6990M 's Advantages

Lower TDP (100W vs 148W)

Score

Benchmark

FP32 (float)

GeForce GTX 980MX +144%

3.92 TFLOPS

Radeon HD 6990M

1.602 TFLOPS

GeForce GTX 980MX

VS

Radeon HD 6990M

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

900 MHz

Memory

8GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

192.0GB/s

Bandwidth

115.2GB/s

Render Config

-

SM Count

-

Compute Units

14

1664

Shading Units

1120

104

TMUs

56

64

ROPs

32

-

Tensor Cores

-

RT Cores

-

48 KB (per SMM)

L1 Cache

8 KB (per CU)

2 MB

L2 Cache

512 KB

Theoretical Performance

75.39 GPixel/s

Pixel Rate

22.88 GPixel/s

122.5 GTexel/s

Texture Rate

40.04 GTexel/s

-

FP16 (half)

-

3.920 TFLOPS

FP32 (float)

1.602 TFLOPS

122.5 GFLOPS

FP64 (double)

-

Graphics Processor

GM204

GPU Name

Blackcomb

N16E-GXX-A1

GPU Variant

Blackcomb XTX (216-0811030)

Maxwell 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

5.2 billion

Transistors

1.7 billion

398 mm²

Die Size

212 mm²

Board Design

148W

TDP

100W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

None

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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