AMD Radeon HD 7730M vs NVIDIA GeForce GT 640M LE
We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 7730M and 2GB VRAM GeForce GT 640M LE to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 7730M 's Advantages
Boost Clock675MHz
416 additional rendering cores
Lower TDP (25W vs 32W)
NVIDIA GeForce GT 640M LE 's Advantages
Larger VRAM bandwidth (50.24GB/s vs 28.80GB/s)
Score
Benchmark
FP32 (float)
Radeon HD 7730M
+139%
0.691 TFLOPS
GeForce GT 640M LE
0.289 TFLOPS
3DMark Time Spy
Radeon HD 7730M
+46%
408
GeForce GT 640M LE
279
Graphics Card
Apr 2012
Release Date
May 2012
London
Generation
GeForce 600M
Mobile
Type
Mobile
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
575 MHz
Base Clock
-
675 MHz
Boost Clock
-
900 MHz
Memory Clock
785 MHz
Memory
2GB
Memory Size
2GB
DDR3
Memory Type
GDDR5
128bit
Memory Bus
128bit
28.80GB/s
Bandwidth
50.24GB/s
Render Config
8
Compute Units
-
-
SM Count
2
512
Shading Units
96
32
TMUs
16
16
ROPs
4
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
64 KB (per SM)
256 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
10.80 GPixel/s
Pixel Rate
3.012 GPixel/s
21.60 GTexel/s
Texture Rate
12.05 GTexel/s
-
-
-
691.2 GFLOPS
FP32 (float)
289.0 GFLOPS
43.20 GFLOPS
FP64 (double)
24.08 GFLOPS
Board Design
25W
TDP
32W
-
-
-
No outputs
Outputs
No outputs
-
-
-
Graphics Processor
Chelsea
GPU Name
GF108
Chelsea LE
(216-0834065)
GPU Variant
-
GCN 1.0
Architecture
Fermi
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
1.5 billion
Transistors
0.585 billion
123 mm²
Die Size
116 mm²
Graphics Features
12 (11_1)
DirectX
12 (11_0)
4.6
OpenGL
4.6
1.2
OpenCL
1.1
1.2
Vulkan
N/A
-
CUDA
2.1
5.1
Shader Model
5.1
