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GPU Comparison
AMD Radeon HD 6490M vs AMD Radeon R9 M385
AMD Radeon HD 6490M vs AMD Radeon R9 M385
VS
AMD Radeon HD 6490M
AMD Radeon R9 M385
We compared two Mobile platform GPUs: 512MB VRAM Radeon HD 6490M and 4GB VRAM Radeon R9 M385 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 M385 's Advantages
Released 4 years and 4 months late
Boost Clock1000MHz
More VRAM (4GB vs 512GB)
Larger VRAM bandwidth (76.80GB/s vs 25.60GB/s)
736 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 6490M
0.256 TFLOPS
Radeon R9 M385
+600%
1.792 TFLOPS
Radeon HD 6490M
VS
Radeon R9 M385
Graphics Card
Jan 2011
Release Date
May 2015
Vancouver
Generation
Gem System
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
900 MHz
-
Boost Clock
1000 MHz
800 MHz
Memory Clock
1200 MHz
Memory
512MB
Memory Size
4GB
GDDR5
Memory Type
GDDR5
64bit
Memory Bus
128bit
25.60GB/s
Bandwidth
76.80GB/s
Render Config
2
Compute Units
14
-
-
-
160
Shading Units
896
8
TMUs
56
4
ROPs
16
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
16 KB (per CU)
128 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
3.200 GPixel/s
Pixel Rate
16.00 GPixel/s
6.400 GTexel/s
Texture Rate
56.00 GTexel/s
-
-
-
256.0 GFLOPS
FP32 (float)
1.792 TFLOPS
-
FP64 (double)
112.0 GFLOPS
Board Design
Unknown
TDP
Unknown
-
-
-
Portable Device Dependent
Outputs
Portable Device Dependent
-
-
-
Graphics Processor
Seymour
GPU Name
Strato
Seymour XTX S3 (216-0809024)
GPU Variant
Strato XT
TeraScale 2
Architecture
GCN 2.0
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
0.37 billion
Transistors
2.08 billion
67 mm²
Die Size
160 mm²
Graphics Features
11.2 (11_0)
DirectX
12 (12_0)
4.4
OpenGL
4.6
1.2
OpenCL
2.1
N/A
Vulkan
1.2.170
-
-
-
5.0
Shader Model
6.5
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9
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