Home GPU Comparison NVIDIA GeForce GTX 850A vs AMD Radeon R5 M255

NVIDIA GeForce GTX 850A vs AMD Radeon R5 M255

We compared two Mobile platform GPUs: 2GB VRAM GeForce GTX 850A and 2GB VRAM Radeon R5 M255 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 850A 's Advantages
256 additional rendering cores
AMD Radeon R5 M255 's Advantages
Released 7 months late
Boost Clock has increased by 0% (940MHz vs 936MHz)
Larger VRAM bandwidth (32.00GB/s vs 28.80GB/s)

Score

Benchmark

FP32 (float)
GeForce GTX 850A +66%
1.198 TFLOPS
Radeon R5 M255
0.721 TFLOPS
VS

Graphics Card

Mar 2014
Release Date
Oct 2014
GeForce 800A
Generation
Gem System
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x8

Clock Speeds

902 MHz
Base Clock
925 MHz
936 MHz
Boost Clock
940 MHz
900 MHz
Memory Clock
1000 MHz

Memory

2GB
Memory Size
2GB
DDR3
Memory Type
DDR3
128bit
Memory Bus
128bit
28.80GB/s
Bandwidth
32.00GB/s

Render Config

-
SM Count
-
-
Compute Units
6
640
Shading Units
384
40
TMUs
24
16
ROPs
8
-
Tensor Cores
-
-
RT Cores
-
64 KB (per SMM)
L1 Cache
16 KB (per CU)
2 MB
L2 Cache
256 KB

Theoretical Performance

14.98 GPixel/s
Pixel Rate
7.520 GPixel/s
37.44 GTexel/s
Texture Rate
22.56 GTexel/s
-
FP16 (half)
721.9 GFLOPS
1198 GFLOPS
FP32 (float)
721.9 GFLOPS
37.44 GFLOPS
FP64 (double)
45.12 GFLOPS

Graphics Processor

GM107
GPU Name
Topaz
N15P-GT-A1
GPU Variant
Topaz PRO (216-0858030)
Maxwell
Architecture
GCN 3.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.87 billion
Transistors
1.55 billion
148 mm²
Die Size
125 mm²

Board Design

45W
TDP
Unknown
-
Suggested PSU
-
No outputs
Outputs
Portable Device Dependent
-
Power Connectors
-

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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