AMD Radeon HD 6990M vs NVIDIA GeForce 940M

VS

AMD Radeon HD 6990M

NVIDIA GeForce 940M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6990M and 2GB VRAM GeForce 940M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6990M 's Advantages

Larger VRAM bandwidth (115.2GB/s vs 14.40GB/s)

608 additional rendering cores

NVIDIA GeForce 940M 's Advantages

Released 3 years and 8 months late

Boost Clock1098MHz

Lower TDP (75W vs 100W)

Score

Benchmark

FP32 (float)

Radeon HD 6990M +42%

1.602 TFLOPS

GeForce 940M

1.124 TFLOPS

Radeon HD 6990M

VS

GeForce 940M

Graphics Card

Jul 2011

Release Date

Mar 2015

Vancouver

Generation

GeForce 900M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

1020 MHz

-

Boost Clock

1098 MHz

900 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

115.2GB/s

Bandwidth

14.40GB/s

Render Config

14

Compute Units

-

1120

Shading Units

512

56

TMUs

32

ROPs

16

-

8 KB (per CU)

L1 Cache

64 KB (per SMM)

512 KB

L2 Cache

2 MB

-

Theoretical Performance

22.88 GPixel/s

Pixel Rate

17.57 GPixel/s

40.04 GTexel/s

Texture Rate

35.14 GTexel/s

-

1.602 TFLOPS

FP32 (float)

1124 GFLOPS

-

FP64 (double)

35.14 GFLOPS

Board Design

100W

TDP

75W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Blackcomb

GPU Name

GM107

Blackcomb XTX (216-0811030)

GPU Variant

N16S-GT1-KB-B

TeraScale 2

Architecture

Maxwell

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

1.87 billion

212 mm²

Die Size

148 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

5.0

Shader Model

5.1

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