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GPU Comparison
ATI Mobility Radeon HD 3870 vs AMD Radeon R9 M280X
ATI Mobility Radeon HD 3870 vs AMD Radeon R9 M280X
VS
ATI Mobility Radeon HD 3870
AMD Radeon R9 M280X
We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 3870 and 4GB VRAM Radeon R9 M280X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 M280X 's Advantages
Released 6 years and 8 months late
Boost Clock1000MHz
More VRAM (4GB vs 512GB)
Larger VRAM bandwidth (88.00GB/s vs 54.40GB/s)
576 additional rendering cores
Score
Benchmark
FP32 (float)
Mobility Radeon HD 3870
0.422 TFLOPS
Radeon R9 M280X
+324%
1.792 TFLOPS
Mobility Radeon HD 3870
VS
Radeon R9 M280X
Graphics Card
Jun 2008
Release Date
Feb 2015
M8x
Generation
Gem System
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
900 MHz
-
Boost Clock
1000 MHz
850 MHz
Memory Clock
1375 MHz
Memory
512MB
Memory Size
4GB
GDDR3
Memory Type
GDDR5
256bit
Memory Bus
128bit
54.40GB/s
Bandwidth
88.00GB/s
Render Config
4
Compute Units
14
-
-
-
320
Shading Units
896
16
TMUs
56
16
ROPs
16
-
-
-
-
-
-
-
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
10.56 GPixel/s
Pixel Rate
16.00 GPixel/s
10.56 GTexel/s
Texture Rate
56.00 GTexel/s
-
-
-
422.4 GFLOPS
FP32 (float)
1.792 TFLOPS
84.48 GFLOPS
FP64 (double)
112.0 GFLOPS
Board Design
55W
TDP
Unknown
-
-
-
No outputs
Outputs
Portable Device Dependent
-
-
-
Graphics Processor
M88
GPU Name
Saturn
-
GPU Variant
Saturn XT (216-0843024)
TeraScale
Architecture
GCN 2.0
TSMC
Foundry
TSMC
55 nm
Process Size
28 nm
0.666 billion
Transistors
2.08 billion
192 mm²
Die Size
160 mm²
Graphics Features
10.1 (10_1)
DirectX
12 (12_0)
3.3
OpenGL
4.6
N/A
OpenCL
2.1
N/A
Vulkan
1.2.170
-
-
-
4.1
Shader Model
6.5
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