AMD Radeon HD 6490M Mac Edition vs NVIDIA GeForce 920MX
We compared two Mobile platform GPUs: 256MB VRAM Radeon HD 6490M Mac Edition and 2GB VRAM GeForce 920MX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6490M Mac Edition 's Advantages
Larger VRAM bandwidth (25.41GB/s vs 14.40GB/s)
NVIDIA GeForce 920MX 's Advantages
Released 4 years and 10 months late
Boost Clock993MHz
More VRAM (2GB vs 256GB)
96 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 6490M Mac Edition
0.24 TFLOPS
GeForce 920MX
+111%
0.508 TFLOPS
Graphics Card
May 2011
Release Date
Mar 2016
Vancouver
Generation
GeForce 900M
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x8
Clock Speeds
-
Base Clock
965 MHz
-
Boost Clock
993 MHz
794 MHz
Memory Clock
900 MHz
Memory
256MB
Memory Size
2GB
GDDR5
Memory Type
DDR3
64bit
Memory Bus
64bit
25.41GB/s
Bandwidth
14.40GB/s
Render Config
2
Compute Units
-
-
-
-
160
Shading Units
256
8
TMUs
24
4
ROPs
8
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
64 KB (per SMM)
128 KB
L2 Cache
1024 KB
-
-
-
Theoretical Performance
3.000 GPixel/s
Pixel Rate
7.944 GPixel/s
6.000 GTexel/s
Texture Rate
23.83 GTexel/s
-
-
-
240.0 GFLOPS
FP32 (float)
508.4 GFLOPS
-
FP64 (double)
15.89 GFLOPS
Board Design
Unknown
TDP
16W
-
-
-
Portable Device Dependent
Outputs
No outputs
-
Power Connectors
None
Graphics Processor
Seymour
GPU Name
GM108
Seymour XTX M2
(216-0809000)
GPU Variant
N16V-GMR1-S
TeraScale 2
Architecture
Maxwell
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
0.37 billion
Transistors
Unknown
67 mm²
Die Size
Unknown
Graphics Features
11.2 (11_0)
DirectX
12 (11_0)
4.4
OpenGL
4.6
1.2
OpenCL
3.0
N/A
Vulkan
1.3
-
CUDA
5.0
5.0
Shader Model
5.1
