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GPU Comparison
AMD Radeon R9 M385X vs ATI Mobility Radeon HD 3870
AMD Radeon R9 M385X vs ATI Mobility Radeon HD 3870
VS
AMD Radeon R9 M385X
ATI Mobility Radeon HD 3870
We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M385X and 512MB VRAM Mobility Radeon HD 3870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 M385X 's Advantages
Released 6 years and 11 months late
Boost Clock1100MHz
Larger VRAM bandwidth (76.80GB/s vs 54.40GB/s)
576 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon R9 M385X
+367%
1.971 TFLOPS
Mobility Radeon HD 3870
0.422 TFLOPS
Radeon R9 M385X
VS
Mobility Radeon HD 3870
Graphics Card
May 2015
Release Date
Jun 2008
Gem System
Generation
M8x
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1000 MHz
Base Clock
-
1100 MHz
Boost Clock
-
1200 MHz
Memory Clock
850 MHz
Memory
4GB
Memory Size
512MB
GDDR5
Memory Type
GDDR3
128bit
Memory Bus
256bit
76.80GB/s
Bandwidth
54.40GB/s
Render Config
-
SM Count
-
14
Compute Units
4
896
Shading Units
320
56
TMUs
16
16
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
-
256 KB
L2 Cache
256 KB
Theoretical Performance
17.60 GPixel/s
Pixel Rate
10.56 GPixel/s
61.60 GTexel/s
Texture Rate
10.56 GTexel/s
-
FP16 (half)
-
1.971 TFLOPS
FP32 (float)
422.4 GFLOPS
123.2 GFLOPS
FP64 (double)
84.48 GFLOPS
Graphics Processor
Strato
GPU Name
M88
Strato XT
GPU Variant
-
GCN 2.0
Architecture
TeraScale
TSMC
Foundry
TSMC
28 nm
Process Size
55 nm
2.08 billion
Transistors
0.666 billion
160 mm²
Die Size
192 mm²
Board Design
Unknown
TDP
55W
-
Suggested PSU
-
Portable Device Dependent
Outputs
No outputs
-
Power Connectors
-
Graphics Features
12 (12_0)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3
2.1
OpenCL
N/A
1.2.170
Vulkan
N/A
-
CUDA
-
6.5
Shader Model
4.1
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