Home GPU Comparison AMD Radeon HD 6550M vs AMD Radeon HD 6970M Mac Edition

AMD Radeon HD 6550M vs AMD Radeon HD 6970M Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6550M and 2GB VRAM Radeon HD 6970M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6550M 's Advantages
Lower TDP (26W vs 75W)
AMD Radeon HD 6970M Mac Edition 's Advantages
Released 9 months late
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (115.2GB/s vs 28.80GB/s)
560 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 6550M
0.48 TFLOPS
Radeon HD 6970M Mac Edition +172%
1.306 TFLOPS
VS

Graphics Card

Nov 2010
Release Date
Aug 2011
Vancouver
Generation
Vancouver
Mobile
Type
Mobile
MXM-II
Bus Interface
MXM-B (3.0)

Clock Speeds

-
-
-
-
-
-
900 MHz
Memory Clock
900 MHz

Memory

1024MB
Memory Size
2GB
DDR3
Memory Type
GDDR5
128bit
Memory Bus
256bit
28.80GB/s
Bandwidth
115.2GB/s

Render Config

5
Compute Units
12
-
-
-
400
Shading Units
960
20
TMUs
48
8
ROPs
32
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
8 KB (per CU)
256 KB
L2 Cache
512 KB
-
-
-

Theoretical Performance

4.800 GPixel/s
Pixel Rate
21.76 GPixel/s
12.00 GTexel/s
Texture Rate
32.64 GTexel/s
-
-
-
480.0 GFLOPS
FP32 (float)
1306 GFLOPS
-
-
-

Board Design

26W
TDP
75W
-
-
-
No outputs
Outputs
No outputs
-
Power Connectors
None

Graphics Processor

Lexington
GPU Name
Blackcomb
-
GPU Variant
Blackcomb XT (216-0811000)
TeraScale 2
Architecture
TeraScale 2
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
2.154 billion
Transistors
1.7 billion
334 mm²
Die Size
212 mm²

Graphics Features

11.2 (11_0)
DirectX
11.2 (11_0)
4.4
OpenGL
4.4
1.2
OpenCL
1.2
N/A
Vulkan
N/A
-
-
-
5.0
Shader Model
5.0

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