AMD Radeon HD 6490M Mac Edition vs NVIDIA GeForce RTX 5090 Mobile
We compared two Mobile platform GPUs: 256MB VRAM Radeon HD 6490M Mac Edition and 24GB VRAM GeForce RTX 5090 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce RTX 5090 Mobile 's Advantages
Released 13 years and 10 months late
Boost Clock1515MHz
More VRAM (24GB vs 256GB)
Larger VRAM bandwidth (896.0GB/s vs 25.41GB/s)
10336 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 6490M Mac Edition
0.24 TFLOPS
GeForce RTX 5090 Mobile
+13150%
31.8 TFLOPS
Graphics Card
May 2011
Release Date
Mar 2025
Vancouver
Generation
GeForce 50 Mobile
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 5.0 x16
Clock Speeds
-
Base Clock
990 MHz
-
Boost Clock
1515 MHz
794 MHz
Memory Clock
1750 MHz
Memory
256MB
Memory Size
24GB
GDDR5
Memory Type
GDDR7
64bit
Memory Bus
256bit
25.41GB/s
Bandwidth
896.0GB/s
Render Config
2
Compute Units
-
-
SM Count
82
160
Shading Units
10496
8
TMUs
328
4
ROPs
112
-
Tensor Cores
328
-
RT Cores
82
8 KB (per CU)
L1 Cache
128 KB (per SM)
128 KB
L2 Cache
64 MB
-
-
-
Theoretical Performance
3.000 GPixel/s
Pixel Rate
169.7 GPixel/s
6.000 GTexel/s
Texture Rate
496.9 GTexel/s
-
FP16 (half)
31.80 TFLOPS
240.0 GFLOPS
FP32 (float)
31.80 TFLOPS
-
FP64 (double)
496.9 GFLOPS
Board Design
Unknown
TDP
95W
-
Suggested PSU
550 W
Portable Device Dependent
Outputs
Portable Device Dependent
-
Power Connectors
None
Graphics Processor
Seymour
GPU Name
GB203
Seymour XTX M2
(216-0809000)
GPU Variant
GN22-X11-A1
TeraScale 2
Architecture
Blackwell 2.0
TSMC
Foundry
TSMC
40 nm
Process Size
5 nm
0.37 billion
Transistors
45.6 billion
67 mm²
Die Size
378 mm²
Graphics Features
11.2 (11_0)
DirectX
12 Ultimate (12_2)
4.4
OpenGL
4.6
1.2
OpenCL
3.0
N/A
Vulkan
1.4
-
CUDA
12.0
5.0
Shader Model
6.8
