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GPU Comparison
AMD Radeon HD 6970M Mac Edition vs ATI Mobility Radeon HD 4650
AMD Radeon HD 6970M Mac Edition vs ATI Mobility Radeon HD 4650
VS
AMD Radeon HD 6970M Mac Edition
ATI Mobility Radeon HD 4650
We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6970M Mac Edition and 512MB VRAM Mobility Radeon HD 4650 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6970M Mac Edition 's Advantages
Released 2 years and 7 months late
Larger VRAM bandwidth (115.2GB/s vs 19.20GB/s)
640 additional rendering cores
ATI Mobility Radeon HD 4650 's Advantages
Lower TDP (35W vs 75W)
Score
Benchmark
FP32 (float)
Radeon HD 6970M Mac Edition
+308%
1.306 TFLOPS
Mobility Radeon HD 4650
0.32 TFLOPS
Radeon HD 6970M Mac Edition
VS
Mobility Radeon HD 4650
Graphics Card
Aug 2011
Release Date
Jan 2009
Vancouver
Generation
M9x
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
900 MHz
Memory Clock
600 MHz
Memory
2GB
Memory Size
512MB
GDDR5
Memory Type
DDR2
256bit
Memory Bus
128bit
115.2GB/s
Bandwidth
19.20GB/s
Render Config
-
SM Count
-
12
Compute Units
4
960
Shading Units
320
48
TMUs
32
32
ROPs
8
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
128 KB
Theoretical Performance
21.76 GPixel/s
Pixel Rate
4.000 GPixel/s
32.64 GTexel/s
Texture Rate
16.00 GTexel/s
-
FP16 (half)
-
1306 GFLOPS
FP32 (float)
320.0 GFLOPS
-
FP64 (double)
-
Graphics Processor
Blackcomb
GPU Name
M96
Blackcomb XT (216-0811000)
GPU Variant
-
TeraScale 2
Architecture
TeraScale
TSMC
Foundry
TSMC
40 nm
Process Size
55 nm
1.7 billion
Transistors
0.514 billion
212 mm²
Die Size
146 mm²
Board Design
75W
TDP
35W
-
Suggested PSU
-
No outputs
Outputs
No outputs
None
Power Connectors
-
Graphics Features
11.2 (11_0)
DirectX
10.1 (10_1)
4.4
OpenGL
3.3
1.2
OpenCL
1.1
N/A
Vulkan
N/A
-
CUDA
-
5.0
Shader Model
4.1
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4
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6
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7
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8
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9
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10
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