NVIDIA GeForce GTX 870M vs AMD Radeon HD 6990M

VS

NVIDIA GeForce GTX 870M

AMD Radeon HD 6990M

We compared two Mobile platform GPUs: 3GB VRAM GeForce GTX 870M and 2GB VRAM Radeon HD 6990M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 870M 's Advantages

Released 2 years and 8 months late

Boost Clock967MHz

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (120.0GB/s vs 115.2GB/s)

224 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 870M +62%

2.599 TFLOPS

Radeon HD 6990M

1.602 TFLOPS

GeForce GTX 870M

VS

Radeon HD 6990M

Graphics Card

Mar 2014

Release Date

Jul 2011

GeForce 800M

Generation

Vancouver

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

941 MHz

Base Clock

-

967 MHz

Boost Clock

-

1250 MHz

Memory Clock

900 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

256bit

120.0GB/s

Bandwidth

115.2GB/s

Render Config

-

Compute Units

14

-

1344

Shading Units

1120

112

TMUs

56

24

ROPs

32

-

16 KB (per SMX)

L1 Cache

8 KB (per CU)

384 KB

L2 Cache

512 KB

-

Theoretical Performance

27.08 GPixel/s

Pixel Rate

22.88 GPixel/s

108.3 GTexel/s

Texture Rate

40.04 GTexel/s

-

2.599 TFLOPS

FP32 (float)

1.602 TFLOPS

108.3 GFLOPS

FP64 (double)

-

Board Design

100W

TDP

100W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

GK104

GPU Name

Blackcomb

N15E-GT-A2

GPU Variant

Blackcomb XTX (216-0811030)

Kepler

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

3.54 billion

Transistors

1.7 billion

294 mm²

Die Size

212 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

5.0

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