GeForce GTX 660M vs Radeon HD 7490M
We compared two Mobile platform GPUs: 1024MB VRAM GeForce GTX 660M and 1024MB VRAM Radeon HD 7490M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce GTX 660M Advantages
Boost Clock950MHz
Larger VRAM bandwidth (64.00GB/s vs 30.40GB/s)
224 additional rendering cores
Radeon HD 7490M Advantages
Lower TDP (9W vs 50W)
Score
Benchmark
FP32 (float)
GeForce GTX 660M
+185%
730
Radeon HD 7490M
256
Graphics Card
Mar 2012
Release Date
Jan 2012
GeForce 600M
Generation
London
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 2.0 x16
Clock Speeds
835 MHz
Base Clock
-
950 MHz
Boost Clock
-
1000 MHz
Memory Clock
950 MHz
Memory
1024MB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
64bit
64.00GB/s
Bandwidth
30.40GB/s
Render Config
-
Compute Units
2
384
Shading Units
160
32
TMUs
8
16
ROPs
4
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
729.6 GFLOPS
FP32 (float)
256.0 GFLOPS
30.40 GFLOPS
FP64 (double)
-
Board Design
50W
TDP
9W
No outputs
Outputs
No outputs
Graphics Processor
GK107
GPU Name
Seymour
N13E-GE-A2
GPU Variant
Seymour XTX
(216-0810005)
(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
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