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GPU Comparison
AMD Radeon HD 6990M vs ATI Mobility Radeon HD 4670
AMD Radeon HD 6990M vs ATI Mobility Radeon HD 4670
VS
AMD Radeon HD 6990M
ATI Mobility Radeon HD 4670
We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 6990M and 512MB VRAM Mobility Radeon HD 4670 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6990M 's Advantages
Released 2 years and 6 months late
Larger VRAM bandwidth (115.2GB/s vs 25.60GB/s)
800 additional rendering cores
ATI Mobility Radeon HD 4670 's Advantages
Lower TDP (35W vs 100W)
Score
Benchmark
FP32 (float)
Radeon HD 6990M
+270%
1.602 TFLOPS
Mobility Radeon HD 4670
0.432 TFLOPS
Radeon HD 6990M
VS
Mobility Radeon HD 4670
Graphics Card
Jul 2011
Release Date
Jan 2009
Vancouver
Generation
M9x
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
MXM-A (3.0)
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
900 MHz
Memory Clock
800 MHz
Memory
2GB
Memory Size
512MB
GDDR5
Memory Type
GDDR3
256bit
Memory Bus
128bit
115.2GB/s
Bandwidth
25.60GB/s
Render Config
-
SM Count
-
14
Compute Units
4
1120
Shading Units
320
56
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
22.88 GPixel/s
Pixel Rate
5.400 GPixel/s
40.04 GTexel/s
Texture Rate
21.60 GTexel/s
-
FP16 (half)
-
1.602 TFLOPS
FP32 (float)
432.0 GFLOPS
-
FP64 (double)
-
Graphics Processor
Blackcomb
GPU Name
M96
Blackcomb XTX (216-0811030)
GPU Variant
M96 XT (216-0729051)
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
100W
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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8
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