AMD Radeon HD 6990M Rebrand vs NVIDIA GeForce 940A

VS

AMD Radeon HD 6990M Rebrand

NVIDIA GeForce 940A

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6990M Rebrand and 1024MB VRAM GeForce 940A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6990M Rebrand 's Advantages

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

416 additional rendering cores

NVIDIA GeForce 940A 's Advantages

Released 3 years and 8 months late

Boost Clock1124MHz

Lower TDP (33W vs 100W)

Score

Benchmark

FP32 (float)

Radeon HD 6990M Rebrand +48%

1.28 TFLOPS

GeForce 940A

0.863 TFLOPS

Radeon HD 6990M Rebrand

VS

GeForce 940A

Graphics Card

Jul 2011

Release Date

Mar 2015

Vancouver

Generation

GeForce 900A

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1029 MHz

-

Boost Clock

1124 MHz

1100 MHz

Memory Clock

1001 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

70.40GB/s

Bandwidth

16.02GB/s

Render Config

14

Compute Units

-

800

Shading Units

384

40

TMUs

16

ROPs

8

-

8 KB (per CU)

L1 Cache

64 KB (per SMM)

256 KB

L2 Cache

1024 KB

-

Theoretical Performance

12.80 GPixel/s

Pixel Rate

8.992 GPixel/s

32.00 GTexel/s

Texture Rate

17.98 GTexel/s

-

1280 GFLOPS

FP32 (float)

863.2 GFLOPS

-

FP64 (double)

26.98 GFLOPS

Board Design

100W

TDP

33W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Broadway

GPU Name

GM108

Broadway XTX

GPU Variant

-

TeraScale 2

Architecture

Maxwell

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.04 billion

Transistors

Unknown

166 mm²

Die Size

Unknown

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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