NVIDIA GeForce 840A vs AMD Radeon R9 A375

VS

NVIDIA GeForce 840A

AMD Radeon R9 A375

We compared two Mobile platform GPUs: 2GB VRAM GeForce 840A and 2GB VRAM Radeon R9 A375 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 840A 's Advantages

Boost Clock has increased by 22% (1124MHz vs 925MHz)

AMD Radeon R9 A375 's Advantages

Released 10 months late

Larger VRAM bandwidth (72.00GB/s vs 16.02GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 840A

0.863 TFLOPS

Radeon R9 A375 +50%

1.299 TFLOPS

GeForce 840A

VS

Radeon R9 A375

Graphics Card

Mar 2014

Release Date

Jan 2015

GeForce 800A

Generation

All-In-One

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1029 MHz

Base Clock

900 MHz

1124 MHz

Boost Clock

925 MHz

1001 MHz

Memory Clock

1125 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

128bit

16.02GB/s

Bandwidth

72.00GB/s

Render Config

-

Compute Units

10

-

384

Shading Units

640

16

TMUs

40

8

ROPs

16

-

64 KB (per SMM)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

8.992 GPixel/s

Pixel Rate

16.24 GPixel/s

17.98 GTexel/s

Texture Rate

40.60 GTexel/s

-

863.2 GFLOPS

FP32 (float)

1299 GFLOPS

26.98 GFLOPS

FP64 (double)

-

Board Design

33W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

GM108

GPU Name

Venus

-

GPU Variant

Venus XTX (216-0846033)

Maxwell

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

Unknown

Transistors

1.5 billion

Unknown

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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