Home GPU Comparison NVIDIA GeForce 840A vs AMD Radeon R5 M445

NVIDIA GeForce 840A vs AMD Radeon R5 M445

We compared two Mobile platform GPUs: 2GB VRAM GeForce 840A and 4GB VRAM Radeon R5 M445 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 840A 's Advantages
Boost Clock1124MHz
AMD Radeon R5 M445 's Advantages
Released 1 years and 10 months late
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (32.00GB/s vs 16.02GB/s)

Score

Benchmark

FP32 (float)
GeForce 840A +22%
0.863 TFLOPS
Radeon R5 M445
0.706 TFLOPS
VS

Graphics Card

Mar 2014
Release Date
Jan 2016
GeForce 800A
Generation
Gem System
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
PCIe 3.0 x8

Clock Speeds

1029 MHz
Base Clock
-
1124 MHz
Boost Clock
-
1001 MHz
Memory Clock
1000 MHz

Memory

2GB
Memory Size
4GB
DDR3
Memory Type
GDDR5
64bit
Memory Bus
64bit
16.02GB/s
Bandwidth
32.00GB/s

Render Config

-
Compute Units
6
-
-
-
384
Shading Units
384
16
TMUs
24
8
ROPs
8
-
-
-
-
-
-
64 KB (per SMM)
L1 Cache
16 KB (per CU)
1024 KB
L2 Cache
128 KB
-
-
-

Theoretical Performance

8.992 GPixel/s
Pixel Rate
7.360 GPixel/s
17.98 GTexel/s
Texture Rate
22.08 GTexel/s
-
-
-
863.2 GFLOPS
FP32 (float)
706.6 GFLOPS
26.98 GFLOPS
FP64 (double)
-

Board Design

33W
TDP
Unknown
-
-
-
No outputs
Outputs
Portable Device Dependent
-
-
-

Graphics Processor

GM108
GPU Name
Meso
-
GPU Variant
Meso XT (216-0864018)
Maxwell
Architecture
GCN 3.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
Unknown
Transistors
1.55 billion
Unknown
Die Size
125 mm²

Graphics Features

12 (11_0)
DirectX
12 (12_0)
4.6
OpenGL
4.6
3.0
OpenCL
2.1
1.3
Vulkan
1.2.170
5.0
CUDA
-
5.1
Shader Model
6.5

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