Home GPU Comparison AMD Radeon R5 M255 vs NVIDIA GeForce GTX 980 Mobile

AMD Radeon R5 M255 vs NVIDIA GeForce GTX 980 Mobile

We compared two Mobile platform GPUs: 2GB VRAM Radeon R5 M255 and 8GB VRAM GeForce GTX 980 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 980 Mobile 's Advantages
Released 11 months late
Boost Clock has increased by 21% (1140MHz vs 940MHz)
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (224.4GB/s vs 32.00GB/s)
1664 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon R5 M255
0.721 TFLOPS
GeForce GTX 980 Mobile +547%
4.669 TFLOPS
VS

Graphics Card

Oct 2014
Release Date
Sep 2015
Gem System
Generation
GeForce 900M
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
MXM-B (3.0)

Clock Speeds

925 MHz
Base Clock
1064 MHz
940 MHz
Boost Clock
1140 MHz
1000 MHz
Memory Clock
1753 MHz

Memory

2GB
Memory Size
8GB
DDR3
Memory Type
GDDR5
128bit
Memory Bus
256bit
32.00GB/s
Bandwidth
224.4GB/s

Render Config

-
SM Count
-
6
Compute Units
-
384
Shading Units
2048
24
TMUs
128
8
ROPs
64
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
48 KB (per SMM)
256 KB
L2 Cache
2 MB

Theoretical Performance

7.520 GPixel/s
Pixel Rate
72.96 GPixel/s
22.56 GTexel/s
Texture Rate
145.9 GTexel/s
721.9 GFLOPS
FP16 (half)
-
721.9 GFLOPS
FP32 (float)
4.669 TFLOPS
45.12 GFLOPS
FP64 (double)
145.9 GFLOPS

Graphics Processor

Topaz
GPU Name
GM204
Topaz PRO (216-0858030)
GPU Variant
N16E-GXX-A1
GCN 3.0
Architecture
Maxwell 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.55 billion
Transistors
5.2 billion
125 mm²
Die Size
398 mm²

Board Design

Unknown
TDP
Unknown
-
Suggested PSU
-
Portable Device Dependent
Outputs
Portable Device Dependent
-
Power Connectors
None

Graphics Features

12 (12_0)
DirectX
12 (12_1)
4.6
OpenGL
4.6
2.1
OpenCL
3.0
1.2.170
Vulkan
1.3
-
CUDA
5.2
6.5
Shader Model
6.7 (6.4)

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