ATI Mobility Radeon X1600 Mac Edition vs AMD Radeon HD 7850M
We compared two Mobile platform GPUs: 128MB VRAM Mobility Radeon X1600 Mac Edition and 2GB VRAM Radeon HD 7850M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 7850M 's Advantages
Released 4 years and 5 months late
More VRAM (2GB vs 128GB)
Larger VRAM bandwidth (64.00GB/s vs 12.67GB/s)
640 additional rendering cores
Score
Graphics Card
Nov 2007
Release Date
Apr 2012
M5x
Generation
London
Mobile
Type
Mobile
PCIe 1.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
-
-
-
-
-
396 MHz
Memory Clock
1000 MHz
Memory
128MB
Memory Size
2GB
GDDR3
Memory Type
GDDR5
128bit
Memory Bus
128bit
12.67GB/s
Bandwidth
64.00GB/s
Render Config
-
Compute Units
10
-
-
-
-
Shading Units
640
4
TMUs
40
4
ROPs
16
-
-
-
-
-
-
-
L1 Cache
16 KB (per CU)
-
L2 Cache
256 KB
-
-
-
Theoretical Performance
1.592 GPixel/s
Pixel Rate
10.80 GPixel/s
1.592 GTexel/s
Texture Rate
27.00 GTexel/s
-
-
-
-
FP32 (float)
864.0 GFLOPS
-
FP64 (double)
54.00 GFLOPS
Board Design
Unknown
TDP
40W
-
-
-
Portable Device Dependent
Outputs
No outputs
-
-
-
Graphics Processor
M56
GPU Name
Heathrow
-
GPU Variant
Heathrow PRO
Ultra-Threaded SE
Architecture
GCN 1.0
TSMC
Foundry
TSMC
90 nm
Process Size
28 nm
0.157 billion
Transistors
1.5 billion
150 mm²
Die Size
123 mm²
Graphics Features
9.0c (9_3)
DirectX
12 (11_1)
2.1
OpenGL
4.6
N/A
OpenCL
1.2
N/A
Vulkan
1.2
-
-
-
3.0
Shader Model
5.1
