NVIDIA GeForce 820M vs AMD Radeon HD 8670A

VS

NVIDIA GeForce 820M

AMD Radeon HD 8670A

We compared two Mobile platform GPUs: 2GB VRAM GeForce 820M and 1024MB VRAM Radeon HD 8670A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 820M 's Advantages

Released 2 years and 1 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (28.83GB/s vs 16.00GB/s)

Score

Benchmark

FP32 (float)

GeForce 820M +34%

0.622 TFLOPS

Radeon HD 8670A

0.461 TFLOPS

GeForce 820M

VS

Radeon HD 8670A

Graphics Card

Mar 2015

Release Date

Feb 2013

GeForce 800M

Generation

All-In-One

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

-

901 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

DDR3

Memory Type

DDR3

128bit

Memory Bus

64bit

28.83GB/s

Bandwidth

16.00GB/s

Render Config

-

Compute Units

6

-

384

Shading Units

384

32

TMUs

24

16

ROPs

8

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

6.480 GPixel/s

Pixel Rate

4.800 GPixel/s

25.92 GTexel/s

Texture Rate

14.40 GTexel/s

-

622.1 GFLOPS

FP32 (float)

460.8 GFLOPS

25.92 GFLOPS

FP64 (double)

28.80 GFLOPS

Board Design

45W

TDP

45W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GK107

GPU Name

Mars

-

GPU Variant

Mars XT

Kepler

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.27 billion

Transistors

0.95 billion

118 mm²

Die Size

77 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.1

Vulkan

1.2

3.0

CUDA

-

5.1

Shader Model

5.1

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