AMD Radeon HD 6670A vs NVIDIA GeForce 820A

VS

AMD Radeon HD 6670A

NVIDIA GeForce 820A

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6670A and 1024MB VRAM GeForce 820A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6670A 's Advantages

Larger VRAM bandwidth (64.00GB/s vs 14.40GB/s)

384 additional rendering cores

NVIDIA GeForce 820A 's Advantages

Released 2 years and 11 months late

Lower TDP (15W vs 45W)

Score

Benchmark

FP32 (float)

Radeon HD 6670A +93%

0.576 TFLOPS

GeForce 820A

0.298 TFLOPS

Radeon HD 6670A

VS

GeForce 820A

Graphics Card

Apr 2011

Release Date

Mar 2014

All-In-One

Generation

GeForce 800A

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

64.00GB/s

Bandwidth

14.40GB/s

Render Config

6

Compute Units

-

SM Count

2

480

Shading Units

96

24

TMUs

16

8

ROPs

8

-

8 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

4.800 GPixel/s

Pixel Rate

3.100 GPixel/s

14.40 GTexel/s

Texture Rate

12.40 GTexel/s

-

576.0 GFLOPS

FP32 (float)

297.6 GFLOPS

-

FP64 (double)

24.80 GFLOPS

Board Design

45W

TDP

15W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Turks

GPU Name

GF117

Turks XT (215-0803000)

GPU Variant

N15V-GM

TeraScale 2

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

0.585 billion

118 mm²

Die Size

116 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

5.0

Shader Model

5.1

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