AMD Radeon Pro 455 vs ATI Mobility Radeon HD 4850 Mac Edition
We compared two Mobile platform GPUs: 2GB VRAM Radeon Pro 455 and 512MB VRAM Mobility Radeon HD 4850 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon Pro 455 's Advantages
Released 7 years and 2 months late
More VRAM (2GB vs 512GB)
Larger VRAM bandwidth (81.28GB/s vs 54.40GB/s)
ATI Mobility Radeon HD 4850 Mac Edition 's Advantages
32 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon Pro 455
+63%
1.313 TFLOPS
Mobility Radeon HD 4850 Mac Edition
0.804 TFLOPS
Graphics Card
Oct 2016
Release Date
Aug 2009
Radeon Pro Mac
Generation
M9x
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
MXM-B (3.0)
Clock Speeds
-
-
-
-
-
-
1270 MHz
Memory Clock
850 MHz
Memory
2GB
Memory Size
512MB
GDDR5
Memory Type
GDDR3
128bit
Memory Bus
256bit
81.28GB/s
Bandwidth
54.40GB/s
Render Config
12
Compute Units
10
-
-
-
768
Shading Units
800
48
TMUs
40
16
ROPs
16
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
1024 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
13.68 GPixel/s
Pixel Rate
8.048 GPixel/s
41.04 GTexel/s
Texture Rate
20.12 GTexel/s
1313 GFLOPS
FP16 (half)
-
1313 GFLOPS
FP32 (float)
804.8 GFLOPS
82.08 GFLOPS
FP64 (double)
161.0 GFLOPS
Board Design
35W
TDP
Unknown
-
-
-
No outputs
Outputs
Portable Device Dependent
None
Power Connectors
None
Graphics Processor
Baffin
GPU Name
M98
Baffin PRO
GPU Variant
M98 L2
(216-0732019)
GCN 4.0
Architecture
TeraScale
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
55 nm
3 billion
Transistors
0.956 billion
123 mm²
Die Size
256 mm²
Graphics Features
12 (12_0)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3
2.1
OpenCL
1.1
1.2
Vulkan
N/A
-
-
-
6.4
Shader Model
4.1
