NVIDIA GeForce GT 820M vs AMD Radeon HD 6990M Rebrand

VS

NVIDIA GeForce GT 820M AMD Radeon HD 6990M Rebrand

We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 820M and 1024MB VRAM Radeon HD 6990M Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 820M 's Advantages

Released 2 years and 4 months late

Lower TDP (15W vs 100W)

AMD Radeon HD 6990M Rebrand 's Advantages

Larger VRAM bandwidth (70.40GB/s vs 14.40GB/s)

704 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 820M

0.298 TFLOPS

Radeon HD 6990M Rebrand +329%

1.28 TFLOPS

GeForce GT 820M

VS

Radeon HD 6990M Rebrand

Graphics Card

Nov 2013

Release Date

Jul 2011

GeForce 800M

Generation

Vancouver

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

-

Boost Clock

-

900 MHz

Memory Clock

1100 MHz

Memory

1024MB

Memory Size

1024MB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

128bit

14.40GB/s

Bandwidth

70.40GB/s

Render Config

2

SM Count

-

Compute Units

14

96

Shading Units

800

16

TMUs

40

8

ROPs

16

-

Tensor Cores

-

RT Cores

-

64 KB (per SM)

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

256 KB

Theoretical Performance

3.100 GPixel/s

Pixel Rate

12.80 GPixel/s

12.40 GTexel/s

Texture Rate

32.00 GTexel/s

-

FP16 (half)

-

297.6 GFLOPS

FP32 (float)

1280 GFLOPS

24.80 GFLOPS

FP64 (double)

-

Graphics Processor

GF117

GPU Name

Broadway

N15V-GM

GPU Variant

Broadway XTX

Fermi 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

0.585 billion

Transistors

1.04 billion

116 mm²

Die Size

166 mm²

Board Design

15W

TDP

100W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

5.0

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