NVIDIA GeForce GTX 850A vs AMD Radeon HD 8670M

VS

NVIDIA GeForce GTX 850A

AMD Radeon HD 8670M

We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 850A and 1024MB VRAM Radeon HD 8670M 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 late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (28.80GB/s vs 14.40GB/s)

320 additional rendering cores

AMD Radeon HD 8670M 's Advantages

Boost Clock has increased by 4% (975MHz vs 936MHz)

Score

Benchmark

FP32 (float)

GeForce GTX 850A +91%

1.198 TFLOPS

Radeon HD 8670M

0.624 TFLOPS

GeForce GTX 850A

VS

Radeon HD 8670M

Graphics Card

Mar 2014

Release Date

Mar 2013

GeForce 800A

Generation

Solar System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

902 MHz

Base Clock

925 MHz

936 MHz

Boost Clock

975 MHz

900 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

1024MB

DDR3

Memory Type

DDR3

128bit

Memory Bus

64bit

28.80GB/s

Bandwidth

14.40GB/s

Render Config

-

Compute Units

5

-

640

Shading Units

320

40

TMUs

20

16

ROPs

8

-

64 KB (per SMM)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

128 KB

-

Theoretical Performance

14.98 GPixel/s

Pixel Rate

7.800 GPixel/s

37.44 GTexel/s

Texture Rate

19.50 GTexel/s

-

1198 GFLOPS

FP32 (float)

624.0 GFLOPS

37.44 GFLOPS

FP64 (double)

39.00 GFLOPS

Board Design

45W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

GM107

GPU Name

Sun

N15P-GT-A1

GPU Variant

Sun S3 XT (216-0841009)

Maxwell

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.87 billion

Transistors

0.69 billion

148 mm²

Die Size

56 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

2.1 (1.2)

1.3

Vulkan

1.2.170

5.0

CUDA

-

5.1

Shader Model

6.5 (5.1)

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