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GPU Comparison
AMD Radeon HD 6990M vs ATI Mobility Radeon HD 3670
AMD Radeon HD 6990M vs ATI Mobility Radeon HD 3670
VS
AMD Radeon HD 6990M
ATI Mobility Radeon HD 3670
We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6990M and 256MB VRAM Mobility Radeon HD 3670 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6990M 's Advantages
Released 3 years and 6 months late
Larger VRAM bandwidth (115.2GB/s vs 25.60GB/s)
1000 additional rendering cores
ATI Mobility Radeon HD 3670 's Advantages
Lower TDP (30W vs 100W)
Score
Benchmark
FP32 (float)
Radeon HD 6990M
+882%
1.602 TFLOPS
Mobility Radeon HD 3670
0.163 TFLOPS
Radeon HD 6990M
VS
Mobility Radeon HD 3670
Graphics Card
Jul 2011
Release Date
Jan 2008
Vancouver
Generation
M8x
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
900 MHz
Memory Clock
800 MHz
Memory
2GB
Memory Size
256MB
GDDR5
Memory Type
GDDR3
256bit
Memory Bus
128bit
115.2GB/s
Bandwidth
25.60GB/s
Render Config
-
SM Count
-
14
Compute Units
3
1120
Shading Units
120
56
TMUs
8
32
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
-
512 KB
L2 Cache
128 KB
Theoretical Performance
22.88 GPixel/s
Pixel Rate
2.720 GPixel/s
40.04 GTexel/s
Texture Rate
5.440 GTexel/s
-
FP16 (half)
-
1.602 TFLOPS
FP32 (float)
163.2 GFLOPS
-
FP64 (double)
-
Graphics Processor
Blackcomb
GPU Name
M86
Blackcomb XTX (216-0811030)
GPU Variant
-
TeraScale 2
Architecture
TeraScale
TSMC
Foundry
TSMC
40 nm
Process Size
55 nm
1.7 billion
Transistors
0.378 billion
212 mm²
Die Size
135 mm²
Board Design
100W
TDP
30W
-
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
N/A
N/A
Vulkan
N/A
-
CUDA
-
5.0
Shader Model
4.1
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