Home GPU Comparison AMD Radeon R9 M370X Mac Edition vs AMD Radeon R5 M255

AMD Radeon R9 M370X Mac Edition vs AMD Radeon R5 M255

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M370X Mac Edition and 2GB VRAM Radeon R5 M255 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M370X Mac Edition 's Advantages
Released 7 months late
Larger VRAM bandwidth (72.00GB/s vs 32.00GB/s)
256 additional rendering cores
AMD Radeon R5 M255 's Advantages
Boost Clock has increased by 18% (940MHz vs 800MHz)

Score

Benchmark

FP32 (float)
Radeon R9 M370X Mac Edition +42%
1.024 TFLOPS
Radeon R5 M255
0.721 TFLOPS
VS

Graphics Card

May 2015
Release Date
Oct 2014
Gem System
Generation
Gem System
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x8

Clock Speeds

775 MHz
Base Clock
925 MHz
800 MHz
Boost Clock
940 MHz
1125 MHz
Memory Clock
1000 MHz

Memory

2GB
Memory Size
2GB
GDDR5
Memory Type
DDR3
128bit
Memory Bus
128bit
72.00GB/s
Bandwidth
32.00GB/s

Render Config

10
Compute Units
6
-
-
-
640
Shading Units
384
40
TMUs
24
16
ROPs
8
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

12.80 GPixel/s
Pixel Rate
7.520 GPixel/s
32.00 GTexel/s
Texture Rate
22.56 GTexel/s
-
FP16 (half)
721.9 GFLOPS
1024 GFLOPS
FP32 (float)
721.9 GFLOPS
64.00 GFLOPS
FP64 (double)
45.12 GFLOPS

Board Design

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

Graphics Processor

Tropo
GPU Name
Topaz
Tropo XT
GPU Variant
Topaz PRO (216-0858030)
GCN 1.0
Architecture
GCN 3.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.5 billion
Transistors
1.55 billion
123 mm²
Die Size
125 mm²

Graphics Features

12 (11_1)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.1 (1.2)
OpenCL
2.1
1.2.170
Vulkan
1.2.170
-
-
-
6.5 (5.1)
Shader Model
6.5

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