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GPU Comparison
AMD Radeon Pro 555 vs AMD Radeon HD 6770M Mac Edition
AMD Radeon Pro 555 vs AMD Radeon HD 6770M Mac Edition
VS
AMD Radeon Pro 555
AMD Radeon HD 6770M Mac Edition
We compared two Mobile platform GPUs: 2GB VRAM Radeon Pro 555 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 Pro 555 's Advantages
Released 6 years and 5 months late
Larger VRAM bandwidth (81.60GB/s vs 57.60GB/s)
288 additional rendering cores
AMD Radeon HD 6770M Mac Edition 's Advantages
Lower TDP (35W vs 75W)
Score
Benchmark
FP32 (float)
Radeon Pro 555
+87%
1.306 TFLOPS
Radeon HD 6770M Mac Edition
0.696 TFLOPS
Radeon Pro 555
VS
Radeon HD 6770M Mac Edition
Graphics Card
Jun 2017
Release Date
Jan 2011
Radeon Pro Mac
Generation
Vancouver
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
MXM-A (3.0)
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1275 MHz
Memory Clock
900 MHz
Memory
2GB
Memory Size
512MB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
128bit
81.60GB/s
Bandwidth
57.60GB/s
Render Config
-
SM Count
-
12
Compute Units
6
768
Shading Units
480
48
TMUs
24
16
ROPs
8
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
8 KB (per CU)
1024 KB
L2 Cache
256 KB
Theoretical Performance
13.60 GPixel/s
Pixel Rate
5.800 GPixel/s
40.80 GTexel/s
Texture Rate
17.40 GTexel/s
1306 GFLOPS
FP16 (half)
-
1306 GFLOPS
FP32 (float)
696.0 GFLOPS
81.60 GFLOPS
FP64 (double)
-
Graphics Processor
Polaris 21
GPU Name
Whistler
Polaris 21 PRO
GPU Variant
Whistler XT (216-0810001)
GCN 4.0
Architecture
TeraScale 2
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
40 nm
3 billion
Transistors
0.716 billion
123 mm²
Die Size
104 mm²
Board Design
75W
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
2.1
OpenCL
1.2
1.2
Vulkan
N/A
-
CUDA
-
6.4
Shader Model
5.0
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7
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8
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