AMD Radeon HD 6990M vs NVIDIA GeForce GTX 670MX

VS

AMD Radeon HD 6990M

NVIDIA GeForce GTX 670MX

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6990M and 3GB VRAM GeForce GTX 670MX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6990M 's Advantages

Larger VRAM bandwidth (115.2GB/s vs 67.20GB/s)

160 additional rendering cores

NVIDIA GeForce GTX 670MX 's Advantages

Released 1 years and 3 months late

More VRAM (3GB vs 2GB)

Lower TDP (75W vs 100W)

Score

Benchmark

FP32 (float)

Radeon HD 6990M +38%

1.602 TFLOPS

GeForce GTX 670MX

1.154 TFLOPS

Radeon HD 6990M

VS

GeForce GTX 670MX

Graphics Card

Jul 2011

Release Date

Oct 2012

Vancouver

Generation

GeForce 600M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

900 MHz

Memory Clock

700 MHz

Memory

2GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

192bit

115.2GB/s

Bandwidth

67.20GB/s

Render Config

14

Compute Units

-

1120

Shading Units

960

56

TMUs

80

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

12.02 GPixel/s

40.04 GTexel/s

Texture Rate

48.08 GTexel/s

-

1.602 TFLOPS

FP32 (float)

1154 GFLOPS

-

FP64 (double)

48.08 GFLOPS

Board Design

100W

TDP

75W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Blackcomb

GPU Name

GK104

Blackcomb XTX (216-0811030)

GPU Variant

N13E-GR-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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