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GPU Comparison
AMD Radeon RX 540X Mobile vs AMD Radeon HD 6990M
AMD Radeon RX 540X Mobile vs AMD Radeon HD 6990M
VS
AMD Radeon RX 540X Mobile
AMD Radeon HD 6990M
We compared two Mobile platform GPUs: 2GB VRAM Radeon RX 540X Mobile 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 RX 540X Mobile 's Advantages
Released 6 years and 9 months late
Boost Clock1211MHz
Lower TDP (50W vs 100W)
AMD Radeon HD 6990M 's Advantages
Larger VRAM bandwidth (115.2GB/s vs 96.00GB/s)
608 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon RX 540X Mobile
1.24 TFLOPS
Radeon HD 6990M
+29%
1.602 TFLOPS
Radeon RX 540X Mobile
VS
Radeon HD 6990M
Graphics Card
Apr 2018
Release Date
Jul 2011
Mobility Radeon
Generation
Vancouver
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
MXM-B (3.0)
Clock Speeds
1124 MHz
Base Clock
-
1211 MHz
Boost Clock
-
1500 MHz
Memory Clock
900 MHz
Memory
2GB
Memory Size
2GB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
256bit
96.00GB/s
Bandwidth
115.2GB/s
Render Config
8
Compute Units
14
-
-
-
512
Shading Units
1120
32
TMUs
56
16
ROPs
32
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
8 KB (per CU)
512 KB
L2 Cache
512 KB
-
-
-
Theoretical Performance
19.38 GPixel/s
Pixel Rate
22.88 GPixel/s
38.75 GTexel/s
Texture Rate
40.04 GTexel/s
1240 GFLOPS
FP16 (half)
-
1240 GFLOPS
FP32 (float)
1.602 TFLOPS
77.50 GFLOPS
FP64 (double)
-
Board Design
50W
TDP
100W
-
-
-
No outputs
Outputs
No outputs
None
Power Connectors
None
Graphics Processor
Polaris 23
GPU Name
Blackcomb
Polaris 23 MXL
GPU Variant
Blackcomb XTX (216-0811030)
GCN 4.0
Architecture
TeraScale 2
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
40 nm
2.2 billion
Transistors
1.7 billion
103 mm²
Die Size
212 mm²
Graphics Features
12 (12_0)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
2.1
OpenCL
1.2
1.2
Vulkan
N/A
-
-
-
6.4
Shader Model
5.0
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