Home GPU Comparison ATI Mobility Radeon HD 4850 X2 vs ATI Mobility Radeon HD 4550

ATI Mobility Radeon HD 4850 X2 vs ATI Mobility Radeon HD 4550

We compared two Mobile platform GPUs: 1024MB VRAM Mobility Radeon HD 4850 X2 and 512MB VRAM Mobility Radeon HD 4550 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 4850 X2 's Advantages
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (89.60GB/s vs 11.20GB/s)
720 additional rendering cores
ATI Mobility Radeon HD 4550 's Advantages
Released 1 years late

Score

Benchmark

FP32 (float)
Mobility Radeon HD 4850 X2 +809%
0.8 TFLOPS
Mobility Radeon HD 4550
0.088 TFLOPS
VS

Graphics Card

Jan 2009
Release Date
Jan 2010
M9x
Generation
M9x
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
MXM-II

Clock Speeds

-
-
-
-
-
-
700 MHz
Memory Clock
700 MHz

Memory

1024MB
Memory Size
512MB
GDDR5
Memory Type
GDDR3
256bit
Memory Bus
64bit
89.60GB/s
Bandwidth
11.20GB/s

Render Config

10
Compute Units
1
-
-
-
800
Shading Units
80
40
TMUs
8
16
ROPs
4
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
64 KB
-
-
-

Theoretical Performance

8.000 GPixel/s
Pixel Rate
2.200 GPixel/s
20.00 GTexel/s
Texture Rate
4.400 GTexel/s
-
-
-
800.0 GFLOPS
FP32 (float)
88.00 GFLOPS
160.0 GFLOPS
FP64 (double)
-

Board Design

Unknown
TDP
Unknown
-
-
-
Portable Device Dependent
Outputs
Portable Device Dependent
None
Power Connectors
None

Graphics Processor

M98
GPU Name
M93
M98 L2 (216-0732019)
GPU Variant
-
TeraScale
Architecture
TeraScale
TSMC
Foundry
TSMC
55 nm
Process Size
55 nm
0.956 billion
Transistors
0.242 billion
256 mm²
Die Size
73 mm²

Graphics Features

10.1 (10_1)
DirectX
10.1 (10_1)
3.3
OpenGL
3.3
1.1
OpenCL
1.1
N/A
Vulkan
N/A
-
-
-
4.1
Shader Model
4.1

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