Home GPU Comparison AMD Radeon R9 M485X vs NVIDIA GeForce 800A

AMD Radeon R9 M485X vs NVIDIA GeForce 800A

We compared two Mobile platform GPUs: 8GB VRAM Radeon R9 M485X and 1024MB VRAM GeForce 800A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M485X 's Advantages
Released 2 years and 2 months late
More VRAM (8GB vs 1024GB)
Larger VRAM bandwidth (160.0GB/s vs 14.40GB/s)
2000 additional rendering cores
NVIDIA GeForce 800A 's Advantages
Lower TDP (15W vs 250W)

Score

Benchmark

FP32 (float)
Radeon R9 M485X +3153%
2.961 TFLOPS
GeForce 800A
0.091 TFLOPS
VS

Graphics Card

May 2016
Release Date
Mar 2014
Crystal System
Generation
GeForce 800A
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 2.0 x16

Clock Speeds

-
-
-
-
-
-
1250 MHz
Memory Clock
900 MHz

Memory

8GB
Memory Size
1024MB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
64bit
160.0GB/s
Bandwidth
14.40GB/s

Render Config

32
Compute Units
-
-
SM Count
1
2048
Shading Units
48
128
TMUs
8
32
ROPs
4
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
64 KB (per SM)
512 KB
L2 Cache
128 KB
-
-
-

Theoretical Performance

23.14 GPixel/s
Pixel Rate
950.0 MPixel/s
92.54 GTexel/s
Texture Rate
3.800 GTexel/s
2.961 TFLOPS
FP16 (half)
-
2.961 TFLOPS
FP32 (float)
91.20 GFLOPS
185.1 GFLOPS
FP64 (double)
7.600 GFLOPS

Board Design

250W
TDP
15W
-
-
-
No outputs
Outputs
No outputs
None
Power Connectors
-

Graphics Processor

Amethyst
GPU Name
GF119
Amethyst XT
GPU Variant
-
GCN 3.0
Architecture
Fermi 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
5 billion
Transistors
0.292 billion
366 mm²
Die Size
79 mm²

Graphics Features

12 (12_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
2.0
OpenCL
1.1
1.2
Vulkan
N/A
-
CUDA
2.1
6.3
Shader Model
5.1

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