Home GPU Comparison NVIDIA GeForce 800A vs NVIDIA GeForce GTX 850M

NVIDIA GeForce 800A vs NVIDIA GeForce GTX 850M

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 800A and 2GB VRAM GeForce GTX 850M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 800A 's Advantages
Lower TDP (15W vs 45W)
NVIDIA GeForce GTX 850M 's Advantages
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (32.03GB/s vs 14.40GB/s)
592 additional rendering cores

Score

Benchmark

FP32 (float)
GeForce 800A
0.091 TFLOPS
GeForce GTX 850M +1169%
1.155 TFLOPS
VS

Graphics Card

Mar 2014
Release Date
Mar 2014
GeForce 800A
Generation
GeForce 800M
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
-
-
-
-
-
900 MHz
Memory Clock
1001 MHz

Memory

1024MB
Memory Size
2GB
DDR3
Memory Type
DDR3
64bit
Memory Bus
128bit
14.40GB/s
Bandwidth
32.03GB/s

Render Config

-
-
-
1
SM Count
-
48
Shading Units
640
8
TMUs
40
4
ROPs
16
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
64 KB (per SMM)
128 KB
L2 Cache
2 MB
-
-
-

Theoretical Performance

950.0 MPixel/s
Pixel Rate
14.43 GPixel/s
3.800 GTexel/s
Texture Rate
36.08 GTexel/s
-
-
-
91.20 GFLOPS
FP32 (float)
1155 GFLOPS
7.600 GFLOPS
FP64 (double)
36.08 GFLOPS

Board Design

15W
TDP
45W
-
-
-
No outputs
Outputs
No outputs
-
-
-

Graphics Processor

GF119
GPU Name
GM107
-
GPU Variant
N15P-GT-A1
Fermi 2.0
Architecture
Maxwell
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
0.292 billion
Transistors
1.87 billion
79 mm²
Die Size
148 mm²

Graphics Features

12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
1.1
OpenCL
3.0
N/A
Vulkan
1.3
2.1
CUDA
5.0
5.1
Shader Model
5.1

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