AMD Radeon HD 8670A vs NVIDIA GeForce GTX 870M

VS

AMD Radeon HD 8670A

NVIDIA GeForce GTX 870M

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 8670A and 3GB VRAM GeForce GTX 870M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8670A 's Advantages

Lower TDP (45W vs 100W)

NVIDIA GeForce GTX 870M 's Advantages

Released 1 years and 1 months late

Boost Clock967MHz

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (120.0GB/s vs 16.00GB/s)

960 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8670A

0.461 TFLOPS

GeForce GTX 870M +463%

2.599 TFLOPS

Radeon HD 8670A

VS

GeForce GTX 870M

Graphics Card

Feb 2013

Release Date

Mar 2014

All-In-One

Generation

GeForce 800M

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

941 MHz

-

Boost Clock

967 MHz

1000 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

3GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

192bit

16.00GB/s

Bandwidth

120.0GB/s

Render Config

6

Compute Units

-

384

Shading Units

1344

24

TMUs

112

8

ROPs

24

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

128 KB

L2 Cache

384 KB

-

Theoretical Performance

4.800 GPixel/s

Pixel Rate

27.08 GPixel/s

14.40 GTexel/s

Texture Rate

108.3 GTexel/s

-

460.8 GFLOPS

FP32 (float)

2.599 TFLOPS

28.80 GFLOPS

FP64 (double)

108.3 GFLOPS

Board Design

45W

TDP

100W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Mars

GPU Name

GK104

Mars XT

GPU Variant

N15E-GT-A2

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.95 billion

Transistors

3.54 billion

77 mm²

Die Size

294 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

5.1

Shader Model

5.1

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