NVIDIA GeForce 940A vs AMD Radeon HD 6990M Rebrand

VS

NVIDIA GeForce 940A

AMD Radeon HD 6990M Rebrand

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 940A 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 940A 's Advantages

Released 3 years and 8 months late

Boost Clock1124MHz

Lower TDP (33W vs 100W)

AMD Radeon HD 6990M Rebrand 's Advantages

Larger VRAM bandwidth (70.40GB/s vs 16.02GB/s)

416 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 940A

0.863 TFLOPS

Radeon HD 6990M Rebrand +48%

1.28 TFLOPS

GeForce 940A

VS

Radeon HD 6990M Rebrand

Graphics Card

Mar 2015

Release Date

Jul 2011

GeForce 900A

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-B (3.0)

Clock Speeds

1029 MHz

Base Clock

-

1124 MHz

Boost Clock

-

1001 MHz

Memory Clock

1100 MHz

Memory

1024MB

Memory Size

1024MB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

128bit

16.02GB/s

Bandwidth

70.40GB/s

Render Config

-

Compute Units

14

-

384

Shading Units

800

16

TMUs

40

8

ROPs

16

-

64 KB (per SMM)

L1 Cache

8 KB (per CU)

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

8.992 GPixel/s

Pixel Rate

12.80 GPixel/s

17.98 GTexel/s

Texture Rate

32.00 GTexel/s

-

863.2 GFLOPS

FP32 (float)

1280 GFLOPS

26.98 GFLOPS

FP64 (double)

-

Board Design

33W

TDP

100W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GM108

GPU Name

Broadway

-

GPU Variant

Broadway XTX

Maxwell

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

Unknown

Transistors

1.04 billion

Unknown

Die Size

166 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.3

Vulkan

N/A

5.0

CUDA

-

5.1

Shader Model

5.0

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