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GPU Comparison
AMD Radeon RX 640 Mobile vs AMD Radeon HD 6490M
AMD Radeon RX 640 Mobile vs AMD Radeon HD 6490M
VS
AMD Radeon RX 640 Mobile
AMD Radeon HD 6490M
We compared two Mobile platform GPUs: 2GB VRAM Radeon RX 640 Mobile and 512MB VRAM Radeon HD 6490M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 640 Mobile 's Advantages
Released 8 years and 4 months late
Boost Clock1218MHz
Larger VRAM bandwidth (48.00GB/s vs 25.60GB/s)
480 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon RX 640 Mobile
+508%
1.559 TFLOPS
Radeon HD 6490M
0.256 TFLOPS
Radeon RX 640 Mobile
VS
Radeon HD 6490M
Graphics Card
May 2019
Release Date
Jan 2011
Mobility Radeon
Generation
Vancouver
Mobile
Type
Mobile
PCIe 3.0 x8
Bus Interface
PCIe 2.0 x16
Clock Speeds
1082 MHz
Base Clock
-
1218 MHz
Boost Clock
-
1500 MHz
Memory Clock
800 MHz
Memory
2GB
Memory Size
512MB
GDDR5
Memory Type
GDDR5
64bit
Memory Bus
64bit
48.00GB/s
Bandwidth
25.60GB/s
Render Config
-
SM Count
-
10
Compute Units
2
640
Shading Units
160
40
TMUs
8
16
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
8 KB (per CU)
512 KB
L2 Cache
128 KB
Theoretical Performance
19.49 GPixel/s
Pixel Rate
3.200 GPixel/s
48.72 GTexel/s
Texture Rate
6.400 GTexel/s
1.559 TFLOPS
FP16 (half)
-
1.559 TFLOPS
FP32 (float)
256.0 GFLOPS
97.44 GFLOPS
FP64 (double)
-
Graphics Processor
Polaris 23
GPU Name
Seymour
Polaris 23 XT
GPU Variant
Seymour XTX S3 (216-0809024)
GCN 4.0
Architecture
TeraScale 2
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
40 nm
2.2 billion
Transistors
0.37 billion
103 mm²
Die Size
67 mm²
Board Design
50W
TDP
Unknown
-
Suggested PSU
-
No outputs
Outputs
Portable Device Dependent
None
Power Connectors
-
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
-
CUDA
-
6.4
Shader Model
5.0
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8
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9
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10
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