AMD Radeon HD 8670A vs NVIDIA GeForce GTX 850A

VS

AMD Radeon HD 8670A

NVIDIA GeForce GTX 850A

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 8670A and 2GB VRAM GeForce GTX 850A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 850A 's Advantages

Released 1 years and 1 months late

Boost Clock936MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (28.80GB/s vs 16.00GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8670A

0.461 TFLOPS

GeForce GTX 850A +159%

1.198 TFLOPS

Radeon HD 8670A

VS

GeForce GTX 850A

Graphics Card

Feb 2013

Release Date

Mar 2014

All-In-One

Generation

GeForce 800A

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

902 MHz

-

Boost Clock

936 MHz

1000 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

DDR3

64bit

Memory Bus

128bit

16.00GB/s

Bandwidth

28.80GB/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

14.98 GPixel/s

14.40 GTexel/s

Texture Rate

37.44 GTexel/s

-

460.8 GFLOPS

FP32 (float)

1198 GFLOPS

28.80 GFLOPS

FP64 (double)

37.44 GFLOPS

Board Design

45W

TDP

45W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Mars

GPU Name

GM107

Mars XT

GPU Variant

N15P-GT-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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