NVIDIA GeForce 840M vs ATI Mobility FireGL V5250
We compared two Mobile platform GPUs: 2GB VRAM GeForce 840M and 256MB VRAM Mobility FireGL V5250 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce 840M 's Advantages
Released 7 years and 2 months late
Boost Clock1124MHz
More VRAM (2GB vs 256GB)
Larger VRAM bandwidth (16.02GB/s vs 11.20GB/s)
384 additional rendering cores
Score
Graphics Card
Mar 2014
Release Date
Jan 2007
GeForce 800M
Generation
Mobility FireGL
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
PCIe 1.0 x16
Clock Speeds
1029 MHz
Base Clock
-
1124 MHz
Boost Clock
-
1001 MHz
Memory Clock
350 MHz
Memory
2GB
Memory Size
256MB
DDR3
Memory Type
GDDR3
64bit
Memory Bus
128bit
16.02GB/s
Bandwidth
11.20GB/s
Render Config
-
-
-
-
-
-
384
Shading Units
-
16
TMUs
12
8
ROPs
12
-
-
-
-
-
-
64 KB (per SMM)
L1 Cache
-
1024 KB
L2 Cache
-
-
-
-
Theoretical Performance
8.992 GPixel/s
Pixel Rate
5.400 GPixel/s
17.98 GTexel/s
Texture Rate
5.400 GTexel/s
-
-
-
863.2 GFLOPS
FP32 (float)
-
26.98 GFLOPS
FP64 (double)
-
Board Design
33W
TDP
Unknown
-
-
-
No outputs
Outputs
Portable Device Dependent
-
-
-
Graphics Processor
GM108
GPU Name
M66
N15S-GT
GPU Variant
M66-P
(216BGCKC13FG)
Maxwell
Architecture
Ultra-Threaded SE
TSMC
Foundry
TSMC
28 nm
Process Size
90 nm
Unknown
Transistors
0.157 billion
Unknown
Die Size
150 mm²
Graphics Features
12 (11_0)
DirectX
9.0c (9_3)
4.6
OpenGL
2.1
3.0
OpenCL
N/A
1.3
Vulkan
N/A
5.0
CUDA
-
5.1
Shader Model
3.0
