AMD Radeon HD 8670A vs NVIDIA GeForce GTX 860M OEM

VS

AMD Radeon HD 8670A

NVIDIA GeForce GTX 860M OEM

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 8670A and 2GB VRAM GeForce GTX 860M OEM 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 75W)

NVIDIA GeForce GTX 860M OEM 's Advantages

Released 2 years late

Boost Clock1085MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (80.19GB/s vs 16.00GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8670A

0.461 TFLOPS

GeForce GTX 860M OEM +201%

1.389 TFLOPS

Radeon HD 8670A

VS

GeForce GTX 860M OEM

Graphics Card

Feb 2013

Release Date

Feb 2015

All-In-One

Generation

GeForce 800M

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

1020 MHz

-

Boost Clock

1085 MHz

1000 MHz

Memory Clock

1253 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

128bit

16.00GB/s

Bandwidth

80.19GB/s

Render Config

6

Compute Units

-

384

Shading Units

640

24

TMUs

40

8

ROPs

16

-

16 KB (per CU)

L1 Cache

64 KB (per SMM)

128 KB

L2 Cache

2 MB

-

Theoretical Performance

4.800 GPixel/s

Pixel Rate

17.36 GPixel/s

14.40 GTexel/s

Texture Rate

43.40 GTexel/s

-

460.8 GFLOPS

FP32 (float)

1389 GFLOPS

28.80 GFLOPS

FP64 (double)

43.40 GFLOPS

Board Design

45W

TDP

75W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Mars

GPU Name

GM107

Mars XT

GPU Variant

N15P-GX-A1

GCN 1.0

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.95 billion

Transistors

1.87 billion

77 mm²

Die Size

148 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

5.0

5.1

Shader Model

5.1

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