Home GPU Comparison AMD Radeon R5 M255 vs AMD Radeon R7 M440

AMD Radeon R5 M255 vs AMD Radeon R7 M440

We compared two Mobile platform GPUs: 2GB VRAM Radeon R5 M255 and 4GB VRAM Radeon R7 M440 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 M255 's Advantages
Boost Clock940MHz
Larger VRAM bandwidth (32.00GB/s vs 14.40GB/s)
64 additional rendering cores
AMD Radeon R7 M440 's Advantages
Released 1 years and 7 months late
More VRAM (4GB vs 2GB)

Score

Benchmark

FP32 (float)
Radeon R5 M255 +26%
0.721 TFLOPS
Radeon R7 M440
0.57 TFLOPS
VS

Graphics Card

Oct 2014
Release Date
May 2016
Gem System
Generation
Gem System
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
PCIe 3.0 x8

Clock Speeds

925 MHz
Base Clock
-
940 MHz
Boost Clock
-
1000 MHz
Memory Clock
900 MHz

Memory

2GB
Memory Size
4GB
DDR3
Memory Type
DDR3
128bit
Memory Bus
64bit
32.00GB/s
Bandwidth
14.40GB/s

Render Config

6
Compute Units
5
-
-
-
384
Shading Units
320
24
TMUs
20
8
ROPs
8
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
128 KB
-
-
-

Theoretical Performance

7.520 GPixel/s
Pixel Rate
7.128 GPixel/s
22.56 GTexel/s
Texture Rate
17.82 GTexel/s
721.9 GFLOPS
FP16 (half)
570.2 GFLOPS
721.9 GFLOPS
FP32 (float)
570.2 GFLOPS
45.12 GFLOPS
FP64 (double)
35.64 GFLOPS

Board Design

Unknown
TDP
Unknown
-
-
-
Portable Device Dependent
Outputs
Portable Device Dependent
-
-
-

Graphics Processor

Topaz
GPU Name
Meso
Topaz PRO (216-0858030)
GPU Variant
Meso PRO (216-0864032)
GCN 3.0
Architecture
GCN 3.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.55 billion
Transistors
1.55 billion
125 mm²
Die Size
125 mm²

Graphics Features

12 (12_0)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.1
OpenCL
2.1
1.2.170
Vulkan
1.2.170
-
-
-
6.5
Shader Model
6.5

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