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GPU Comparison
AMD Radeon RX 550X 640SP vs AMD Radeon HD 6490
AMD Radeon RX 550X 640SP vs AMD Radeon HD 6490
VS
AMD Radeon RX 550X 640SP
AMD Radeon HD 6490
We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 550X 640SP and 1024MB VRAM Radeon HD 6490 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 550X 640SP 's Advantages
Released 6 years and 9 months late
Boost Clock1071MHz
More VRAM (2GB vs 1GB)
Larger VRAM bandwidth (96.00GB/s vs 16.00GB/s)
320 additional rendering cores
AMD Radeon HD 6490 's Advantages
Lower TDP (39W vs 60W)
Score
Benchmark
FP32 (float)
Radeon RX 550X 640SP
+289%
1.371 TFLOPS
Radeon HD 6490
0.352 TFLOPS
Radeon RX 550X 640SP
VS
Radeon HD 6490
Graphics Card
Apr 2018
Release Date
Jul 2011
Polaris
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 3.0 x8
Bus Interface
PCIe 2.0 x16
Clock Speeds
1019 MHz
Base Clock
-
1071 MHz
Boost Clock
-
1500 MHz
Memory Clock
500 MHz
Memory
2GB
Memory Size
1024MB
GDDR5
Memory Type
DDR2
128bit
Memory Bus
128bit
96.00GB/s
Bandwidth
16.00GB/s
Render Config
-
SM Count
-
10
Compute Units
4
640
Shading Units
320
40
TMUs
16
16
ROPs
8
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
8 KB (per CU)
1024 KB
L2 Cache
256 KB
Theoretical Performance
17.14 GPixel/s
Pixel Rate
4.400 GPixel/s
42.84 GTexel/s
Texture Rate
8.800 GTexel/s
1371 GFLOPS
FP16 (half)
-
1371 GFLOPS
FP32 (float)
352.0 GFLOPS
85.68 GFLOPS
FP64 (double)
-
Graphics Processor
Baffin
GPU Name
Redwood
Baffin LE
GPU Variant
Redwood LE
GCN 4.0
Architecture
TeraScale 2
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
40 nm
3 billion
Transistors
0.627 billion
123 mm²
Die Size
104 mm²
Board Design
60W
TDP
39W
250 W
Suggested PSU
200 W
1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a
Outputs
1x DVI 1x HDMI 1.3a 1x VGA
None
Power Connectors
None
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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6
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