AMD Radeon HD 8670A vs NVIDIA GeForce 820A

VS

AMD Radeon HD 8670A

NVIDIA GeForce 820A

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 8670A 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 8670A 's Advantages

Larger VRAM bandwidth (16.00GB/s vs 14.40GB/s)

288 additional rendering cores

NVIDIA GeForce 820A 's Advantages

Released 1 years and 1 months late

Lower TDP (15W vs 45W)

Score

Benchmark

FP32 (float)

Radeon HD 8670A +54%

0.461 TFLOPS

GeForce 820A

0.298 TFLOPS

Radeon HD 8670A

VS

GeForce 820A

Graphics Card

Feb 2013

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

DDR3

Memory Type

DDR3

64bit

Memory Bus

64bit

16.00GB/s

Bandwidth

14.40GB/s

Render Config

6

Compute Units

-

SM Count

2

384

Shading Units

96

24

TMUs

16

8

ROPs

8

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

128 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

-

460.8 GFLOPS

FP32 (float)

297.6 GFLOPS

28.80 GFLOPS

FP64 (double)

24.80 GFLOPS

Board Design

45W

TDP

15W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Mars

GPU Name

GF117

Mars XT

GPU Variant

N15V-GM

GCN 1.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.95 billion

Transistors

0.585 billion

77 mm²

Die Size

116 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

5.1

Shader Model

5.1

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