NVIDIA GeForce GTX 1080 Max Q vs AMD Radeon HD 6990M Rebrand

VS

NVIDIA GeForce GTX 1080 Max Q AMD Radeon HD 6990M Rebrand

We compared two Mobile platform GPUs: 8GB VRAM GeForce GTX 1080 Max Q 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 1080 Max Q 's Advantages

Released 5 years and 11 months late

Boost Clock1468MHz

More VRAM (8GB vs 1GB)

Larger VRAM bandwidth (320.3GB/s vs 70.40GB/s)

1760 additional rendering cores

AMD Radeon HD 6990M Rebrand 's Advantages

Lower TDP (100W vs 150W)

Score

Benchmark

FP32 (float)

GeForce GTX 1080 Max Q +487%

7.516 TFLOPS

Radeon HD 6990M Rebrand

1.28 TFLOPS

GeForce GTX 1080 Max Q

VS

Radeon HD 6990M Rebrand

Graphics Card

Jun 2017

Release Date

Jul 2011

GeForce 10 Mobile

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

1290 MHz

Base Clock

-

1468 MHz

Boost Clock

-

1251 MHz

Memory Clock

1100 MHz

Memory

8GB

Memory Size

1024MB

GDDR5X

Memory Type

GDDR5

256bit

Memory Bus

128bit

320.3GB/s

Bandwidth

70.40GB/s

Render Config

20

SM Count

-

Compute Units

14

2560

Shading Units

800

160

TMUs

40

64

ROPs

16

-

Tensor Cores

-

RT Cores

-

48 KB (per SM)

L1 Cache

8 KB (per CU)

2 MB

L2 Cache

256 KB

Theoretical Performance

93.95 GPixel/s

Pixel Rate

12.80 GPixel/s

234.9 GTexel/s

Texture Rate

32.00 GTexel/s

117.4 GFLOPS

FP16 (half)

-

7.516 TFLOPS

FP32 (float)

1280 GFLOPS

234.9 GFLOPS

FP64 (double)

-

Graphics Processor

GP104

GPU Name

Broadway

N17E-G3-A1

GPU Variant

Broadway XTX

Pascal

Architecture

TeraScale 2

TSMC

Foundry

TSMC

16 nm

Process Size

40 nm

7.2 billion

Transistors

1.04 billion

314 mm²

Die Size

166 mm²

Board Design

150W

TDP

100W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

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

6.1

CUDA

-

6.4

Shader Model

5.0

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