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GPU Comparison
AMD Radeon RX 6600M vs AMD Radeon HD 7490M
AMD Radeon RX 6600M vs AMD Radeon HD 7490M
VS
AMD Radeon RX 6600M
AMD Radeon HD 7490M
We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 6600M and 1024MB VRAM Radeon HD 7490M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon RX 6600M 's Advantages
Released 9 years and 4 months late
Boost Clock2416MHz
More VRAM (8GB vs 1GB)
Larger VRAM bandwidth (224.0GB/s vs 30.40GB/s)
1632 additional rendering cores
AMD Radeon HD 7490M 's Advantages
Lower TDP (9W vs 100W)
Score
Benchmark
FP32 (float)
Radeon RX 6600M
+3282%
8.659 TFLOPS
Radeon HD 7490M
0.256 TFLOPS
Radeon RX 6600M
VS
Radeon HD 7490M
Graphics Card
May 2021
Release Date
Jan 2012
Mobility Radeon
Generation
London
Mobile
Type
Mobile
PCIe 4.0 x8
Bus Interface
PCIe 2.0 x16
Clock Speeds
2068 MHz
Base Clock
-
2416 MHz
Boost Clock
-
1750 MHz
Memory Clock
950 MHz
Memory
8GB
Memory Size
1024MB
GDDR6
Memory Type
GDDR5
128bit
Memory Bus
64bit
224.0GB/s
Bandwidth
30.40GB/s
Render Config
-
SM Count
-
28
Compute Units
2
1792
Shading Units
160
112
TMUs
8
64
ROPs
4
-
Tensor Cores
-
28
RT Cores
-
128 KB per Array
L1 Cache
8 KB (per CU)
2 MB
L2 Cache
128 KB
Theoretical Performance
154.6 GPixel/s
Pixel Rate
3.200 GPixel/s
270.6 GTexel/s
Texture Rate
6.400 GTexel/s
17.32 TFLOPS
FP16 (half)
-
8.659 TFLOPS
FP32 (float)
256.0 GFLOPS
541.2 GFLOPS
FP64 (double)
-
Graphics Processor
Navi 23
GPU Name
Seymour
-
GPU Variant
Seymour XTX (216-0810005)
RDNA 2.0
Architecture
TeraScale 2
TSMC
Foundry
TSMC
7 nm
Process Size
40 nm
11.06 billion
Transistors
0.37 billion
237 mm²
Die Size
67 mm²
Board Design
100W
TDP
9W
-
Suggested PSU
-
No outputs
Outputs
No outputs
None
Power Connectors
-
Graphics Features
12 Ultimate (12_2)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
2.1
OpenCL
1.2
1.3
Vulkan
N/A
-
CUDA
-
6.5
Shader Model
5.0
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