NVIDIA GeForce GTX 850A vs AMD Radeon HD 8870M

VS

NVIDIA GeForce GTX 850A

AMD Radeon HD 8870M

We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 850A and 2GB VRAM Radeon HD 8870M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 850A 's Advantages

Released 11 months late

Boost Clock has increased by 21% (936MHz vs 775MHz)

AMD Radeon HD 8870M 's Advantages

Larger VRAM bandwidth (72.00GB/s vs 28.80GB/s)

Score

Benchmark

FP32 (float)

GeForce GTX 850A +20%

1.198 TFLOPS

Radeon HD 8870M

0.992 TFLOPS

GeForce GTX 850A

VS

Radeon HD 8870M

Graphics Card

Mar 2014

Release Date

Apr 2013

GeForce 800A

Generation

Solar System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

902 MHz

Base Clock

725 MHz

936 MHz

Boost Clock

775 MHz

900 MHz

Memory Clock

1125 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

28.80GB/s

Bandwidth

72.00GB/s

Render Config

-

Compute Units

10

-

640

Shading Units

640

40

TMUs

40

16

ROPs

16

-

64 KB (per SMM)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

14.98 GPixel/s

Pixel Rate

12.40 GPixel/s

37.44 GTexel/s

Texture Rate

31.00 GTexel/s

-

1198 GFLOPS

FP32 (float)

992.0 GFLOPS

37.44 GFLOPS

FP64 (double)

62.00 GFLOPS

Board Design

45W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

GM107

GPU Name

Venus

N15P-GT-A1

GPU Variant

Venus XT (216-0846000)

Maxwell

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.87 billion

Transistors

1.5 billion

148 mm²

Die Size

123 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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