Mobility Radeon HD 3870 vs Mobility Radeon X1600 Mac Edition
We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 3870 and 128MB VRAM Mobility Radeon X1600 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Mobility Radeon HD 3870 Advantages
Released 7 months late
More VRAM (512GB vs 128GB)
Larger VRAM bandwidth (54.40GB/s vs 12.67GB/s)
320 additional rendering cores
Score
Graphics Card
Jun 2008
Release Date
Nov 2007
M8x
Generation
M5x
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 1.0 x16
Clock Speeds
850 MHz
Memory Clock
396 MHz
Memory
512MB
Memory Size
128MB
GDDR3
Memory Type
GDDR3
256bit
Memory Bus
128bit
54.40GB/s
Bandwidth
12.67GB/s
Render Config
4
Compute Units
-
320
Shading Units
-
16
TMUs
4
16
ROPs
4
256 KB
L2 Cache
-
Theoretical Performance
10.56 GPixel/s
Pixel Rate
1.592 GPixel/s
10.56 GTexel/s
Texture Rate
1.592 GTexel/s
422.4 GFLOPS
FP32 (float)
-
84.48 GFLOPS
FP64 (double)
-
Board Design
55W
TDP
Unknown
No outputs
Outputs
Portable Device Dependent
Graphics Processor
M88
GPU Name
M56
TeraScale
Architecture
Ultra-Threaded SE
TSMC
Foundry
TSMC
55 nm
Process Size
90 nm
0.666 billion
Transistors
0.157 billion
192 mm²
Die Size
150 mm²
Graphics Features
10.1 (10_1)
DirectX
9.0c (9_3)
3.3
OpenGL
2.1
N/A
OpenCL
N/A
N/A
Vulkan
N/A
4.1
Shader Model
3.0
