Home GPU Comparison AMD Radeon R9 M395 Mac Edition vs AMD Radeon HD 6770M Mac Edition

AMD Radeon R9 M395 Mac Edition vs AMD Radeon HD 6770M Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M395 Mac Edition and 512MB VRAM Radeon HD 6770M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M395 Mac Edition 's Advantages
Released 4 years and 4 months late
Larger VRAM bandwidth (174.7GB/s vs 57.60GB/s)
1312 additional rendering cores
AMD Radeon HD 6770M Mac Edition 's Advantages
Lower TDP (35W vs 250W)

Score

Benchmark

FP32 (float)
Radeon R9 M395 Mac Edition +329%
2.989 TFLOPS
Radeon HD 6770M Mac Edition
0.696 TFLOPS
VS

Graphics Card

May 2015
Release Date
Jan 2011
Crystal System
Generation
Vancouver
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
MXM-A (3.0)

Clock Speeds

-
Base Clock
-
-
Boost Clock
-
1365 MHz
Memory Clock
900 MHz

Memory

2GB
Memory Size
512MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
128bit
174.7GB/s
Bandwidth
57.60GB/s

Render Config

-
SM Count
-
28
Compute Units
6
1792
Shading Units
480
112
TMUs
24
32
ROPs
8
-
Tensor Cores
-
-
RT Cores
-
-
L1 Cache
8 KB (per CU)
-
L2 Cache
256 KB

Theoretical Performance

26.69 GPixel/s
Pixel Rate
5.800 GPixel/s
93.41 GTexel/s
Texture Rate
17.40 GTexel/s
-
FP16 (half)
-
2.989 TFLOPS
FP32 (float)
696.0 GFLOPS
373.6 GFLOPS
FP64 (double)
-

Graphics Processor

Amethyst
GPU Name
Whistler
Amethyst PRO (216-0872004)
GPU Variant
Whistler XT (216-0810001)
GCN 3.0
Architecture
TeraScale 2
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
5 billion
Transistors
0.716 billion
366 mm²
Die Size
104 mm²

Board Design

250W
TDP
35W
-
Suggested PSU
-
No outputs
Outputs
No outputs
None
Power Connectors
-

Graphics Features

12 (12_0)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
2.0
OpenCL
1.2
1.2
Vulkan
N/A
-
CUDA
-
6.3
Shader Model
5.0

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