AMD Radeon HD 6990M vs NVIDIA GeForce GTX 680M

VS

AMD Radeon HD 6990M NVIDIA GeForce GTX 680M

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6990M and 4GB VRAM GeForce GTX 680M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 680M 's Advantages

Released 11 months late

Boost Clock758MHz

More VRAM (4GB vs 2GB)

224 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6990M

1.602 TFLOPS

GeForce GTX 680M +27%

2.038 TFLOPS

Radeon HD 6990M

VS

GeForce GTX 680M

Graphics Card

Jul 2011

Release Date

Jun 2012

Vancouver

Generation

GeForce 600M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

719 MHz

-

Boost Clock

758 MHz

900 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

115.2GB/s

Bandwidth

115.2GB/s

Render Config

-

SM Count

-

14

Compute Units

-

1120

Shading Units

1344

56

TMUs

112

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

512 KB

Theoretical Performance

22.88 GPixel/s

Pixel Rate

21.22 GPixel/s

40.04 GTexel/s

Texture Rate

84.90 GTexel/s

-

FP16 (half)

-

1.602 TFLOPS

FP32 (float)

2.038 TFLOPS

-

FP64 (double)

84.90 GFLOPS

Graphics Processor

Blackcomb

GPU Name

GK104

Blackcomb XTX (216-0811030)

GPU Variant

N13E-GTX-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

Board Design

100W

TDP

100W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

None

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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