AMD Radeon HD 6990M vs NVIDIA GeForce GTX 870M

VS

AMD Radeon HD 6990M

NVIDIA GeForce GTX 870M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6990M and 3GB VRAM GeForce GTX 870M 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)

Radeon HD 6990M

1.602 TFLOPS

GeForce GTX 870M +62%

2.599 TFLOPS

Radeon HD 6990M

VS

GeForce GTX 870M

Graphics Card

Jul 2011

Release Date

Mar 2014

Vancouver

Generation

GeForce 800M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

941 MHz

-

Boost Clock

967 MHz

900 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

192bit

115.2GB/s

Bandwidth

120.0GB/s

Render Config

14

Compute Units

-

1120

Shading Units

1344

56

TMUs

112

32

ROPs

24

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

384 KB

-

Theoretical Performance

22.88 GPixel/s

Pixel Rate

27.08 GPixel/s

40.04 GTexel/s

Texture Rate

108.3 GTexel/s

-

1.602 TFLOPS

FP32 (float)

2.599 TFLOPS

-

FP64 (double)

108.3 GFLOPS

Board Design

100W

TDP

100W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Blackcomb

GPU Name

GK104

Blackcomb XTX (216-0811030)

GPU Variant

N15E-GT-A2

TeraScale 2

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

3.54 billion

212 mm²

Die Size

294 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

5.0

Shader Model

5.1

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