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GPU Comparison
AMD Radeon HD 6450A vs AMD Radeon HD 6990M
AMD Radeon HD 6450A vs AMD Radeon HD 6990M
VS
AMD Radeon HD 6450A
AMD Radeon HD 6990M
We compared two Mobile platform GPUs: 512MB VRAM Radeon HD 6450A and 2GB VRAM Radeon HD 6990M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6450A 's Advantages
Lower TDP (25W vs 100W)
AMD Radeon HD 6990M 's Advantages
Larger VRAM bandwidth (115.2GB/s vs 8.528GB/s)
960 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 6450A
0.2 TFLOPS
Radeon HD 6990M
+701%
1.602 TFLOPS
Radeon HD 6450A
VS
Radeon HD 6990M
Graphics Card
Apr 2011
Release Date
Jul 2011
All-In-One
Generation
Vancouver
Mobile
Type
Mobile
MXM-A (3.0)
Bus Interface
MXM-B (3.0)
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
533 MHz
Memory Clock
900 MHz
Memory
512MB
Memory Size
2GB
DDR3
Memory Type
GDDR5
64bit
Memory Bus
256bit
8.528GB/s
Bandwidth
115.2GB/s
Render Config
-
SM Count
-
2
Compute Units
14
160
Shading Units
1120
8
TMUs
56
4
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
8 KB (per CU)
128 KB
L2 Cache
512 KB
Theoretical Performance
2.500 GPixel/s
Pixel Rate
22.88 GPixel/s
5.000 GTexel/s
Texture Rate
40.04 GTexel/s
-
FP16 (half)
-
200.0 GFLOPS
FP32 (float)
1.602 TFLOPS
-
FP64 (double)
-
Graphics Processor
Caicos
GPU Name
Blackcomb
-
GPU Variant
Blackcomb XTX (216-0811030)
TeraScale 2
Architecture
TeraScale 2
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
0.37 billion
Transistors
1.7 billion
67 mm²
Die Size
212 mm²
Board Design
25W
TDP
100W
-
Suggested PSU
-
No outputs
Outputs
No outputs
-
Power Connectors
None
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
-
CUDA
-
5.0
Shader Model
5.0
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