NVIDIA GeForce 840M vs AMD Radeon Pro 455
We compared two Mobile platform GPUs: 2GB VRAM GeForce 840M and 2GB VRAM Radeon Pro 455 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce 840M 's Advantages
Boost Clock1124MHz
Lower TDP (33W vs 35W)
AMD Radeon Pro 455 's Advantages
Released 2 years and 7 months late
Larger VRAM bandwidth (81.28GB/s vs 16.02GB/s)
384 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce 840M
0.863 TFLOPS
Radeon Pro 455
+52%
1.313 TFLOPS
Graphics Card
Mar 2014
Release Date
Oct 2016
GeForce 800M
Generation
Radeon Pro Mac
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
1270 MHz
Memory
2GB
Memory Size
2GB
DDR3
Memory Type
GDDR5
64bit
Memory Bus
128bit
16.02GB/s
Bandwidth
81.28GB/s
Render Config
-
Compute Units
12
-
-
-
384
Shading Units
768
16
TMUs
48
8
ROPs
16
-
-
-
-
-
-
64 KB (per SMM)
L1 Cache
16 KB (per CU)
1024 KB
L2 Cache
1024 KB
-
-
-
Theoretical Performance
8.992 GPixel/s
Pixel Rate
13.68 GPixel/s
17.98 GTexel/s
Texture Rate
41.04 GTexel/s
-
FP16 (half)
1313 GFLOPS
863.2 GFLOPS
FP32 (float)
1313 GFLOPS
26.98 GFLOPS
FP64 (double)
82.08 GFLOPS
Board Design
33W
TDP
35W
-
-
-
No outputs
Outputs
No outputs
-
Power Connectors
None
Graphics Processor
GM108
GPU Name
Baffin
N15S-GT
GPU Variant
Baffin PRO
Maxwell
Architecture
GCN 4.0
TSMC
Foundry
GlobalFoundries
28 nm
Process Size
14 nm
Unknown
Transistors
3 billion
Unknown
Die Size
123 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
5.0
CUDA
-
5.1
Shader Model
6.4
