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GPU Comparison
NVIDIA GeForce GTX 660M Mac Edition vs AMD Radeon HD 7490M
NVIDIA GeForce GTX 660M Mac Edition vs AMD Radeon HD 7490M
VS
NVIDIA GeForce GTX 660M Mac Edition
AMD Radeon HD 7490M
We compared two Mobile platform GPUs: 512MB VRAM GeForce GTX 660M Mac Edition and 1024MB VRAM Radeon HD 7490M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GTX 660M Mac Edition 's Advantages
Released 1 years and 3 months late
Larger VRAM bandwidth (80.00GB/s vs 30.40GB/s)
224 additional rendering cores
AMD Radeon HD 7490M 's Advantages
More VRAM (1024GB vs 512GB)
Lower TDP (9W vs 50W)
Score
Benchmark
FP32 (float)
GeForce GTX 660M Mac Edition
+185%
0.73 TFLOPS
Radeon HD 7490M
0.256 TFLOPS
GeForce GTX 660M Mac Edition
VS
Radeon HD 7490M
Graphics Card
Apr 2013
Release Date
Jan 2012
GeForce 600M
Generation
London
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1250 MHz
Memory Clock
950 MHz
Memory
512MB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
64bit
80.00GB/s
Bandwidth
30.40GB/s
Render Config
-
SM Count
-
-
Compute Units
2
384
Shading Units
160
32
TMUs
8
16
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
16 KB (per SMX)
L1 Cache
8 KB (per CU)
256 KB
L2 Cache
128 KB
Theoretical Performance
7.600 GPixel/s
Pixel Rate
3.200 GPixel/s
30.40 GTexel/s
Texture Rate
6.400 GTexel/s
-
FP16 (half)
-
729.6 GFLOPS
FP32 (float)
256.0 GFLOPS
30.40 GFLOPS
FP64 (double)
-
Graphics Processor
GK107
GPU Name
Seymour
-
GPU Variant
Seymour XTX (216-0810005)
Kepler
Architecture
TeraScale 2
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
1.27 billion
Transistors
0.37 billion
118 mm²
Die Size
67 mm²
Board Design
50W
TDP
9W
-
Suggested PSU
-
No outputs
Outputs
No outputs
None
Power Connectors
-
Graphics Features
12 (11_0)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
3.0
OpenCL
1.2
1.1
Vulkan
N/A
3.0
CUDA
-
5.1
Shader Model
5.0
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