AMD Radeon HD 6990M vs NVIDIA GeForce GT 540M

VS

AMD Radeon HD 6990M NVIDIA GeForce GT 540M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6990M and 1024MB VRAM GeForce GT 540M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6990M 's Advantages

Released 6 months late

More VRAM (2GB vs 1GB)

Larger VRAM bandwidth (115.2GB/s vs 28.80GB/s)

1024 additional rendering cores

NVIDIA GeForce GT 540M 's Advantages

Lower TDP (35W vs 100W)

Score

Benchmark

FP32 (float)

Radeon HD 6990M +520%

1.602 TFLOPS

GeForce GT 540M

0.258 TFLOPS

Radeon HD 6990M

VS

GeForce GT 540M

Graphics Card

Jul 2011

Release Date

Jan 2011

Vancouver

Generation

GeForce 500M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-A (3.0)

Clock Speeds

-

Base Clock

-

Boost Clock

-

900 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

28.80GB/s

Render Config

-

SM Count

2

14

Compute Units

-

1120

Shading Units

96

56

TMUs

16

32

ROPs

4

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

256 KB

Theoretical Performance

22.88 GPixel/s

Pixel Rate

2.688 GPixel/s

40.04 GTexel/s

Texture Rate

10.75 GTexel/s

-

FP16 (half)

-

1.602 TFLOPS

FP32 (float)

258.0 GFLOPS

-

FP64 (double)

21.50 GFLOPS

Graphics Processor

Blackcomb

GPU Name

GF108

Blackcomb XTX (216-0811030)

GPU Variant

N12P-GS-A1

TeraScale 2

Architecture

Fermi

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.7 billion

Transistors

0.585 billion

212 mm²

Die Size

116 mm²

Board Design

100W

TDP

35W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

5.0

Shader Model

5.1

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