NVIDIA GeForce GT 640M Mac Edition vs ATI Radeon E4690 MXM
We compared two Mobile platform GPUs: 512MB VRAM GeForce GT 640M Mac Edition and 512MB VRAM Radeon E4690 MXM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 640M Mac Edition 's Advantages
Released 3 years and 8 months late
Larger VRAM bandwidth (40.00GB/s vs 22.40GB/s)
64 additional rendering cores
ATI Radeon E4690 MXM 's Advantages
Lower TDP (30W vs 32W)
Score
Benchmark
FP32 (float)
GeForce GT 640M Mac Edition
+48%
0.572 TFLOPS
Radeon E4690 MXM
0.384 TFLOPS
Graphics Card
Feb 2013
Release Date
Jun 2009
GeForce 600M
Generation
Embedded
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
MXM-II
Clock Speeds
-
-
-
-
-
-
1250 MHz
Memory Clock
700 MHz
Memory
512MB
Memory Size
512MB
GDDR5
Memory Type
GDDR3
64bit
Memory Bus
128bit
40.00GB/s
Bandwidth
22.40GB/s
Render Config
-
Compute Units
4
-
-
-
384
Shading Units
320
32
TMUs
32
8
ROPs
8
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
16 KB (per CU)
128 KB
L2 Cache
128 KB
-
-
-
Theoretical Performance
5.960 GPixel/s
Pixel Rate
4.800 GPixel/s
23.84 GTexel/s
Texture Rate
19.20 GTexel/s
-
-
-
572.2 GFLOPS
FP32 (float)
384.0 GFLOPS
23.84 GFLOPS
FP64 (double)
-
Board Design
32W
TDP
30W
-
-
-
No outputs
Outputs
No outputs
-
-
-
Graphics Processor
GK107
GPU Name
RV730
N13P-GS
GPU Variant
RV730 XT E4690
(215-0729055)
Kepler
Architecture
TeraScale
TSMC
Foundry
TSMC
28 nm
Process Size
55 nm
1.27 billion
Transistors
0.514 billion
118 mm²
Die Size
146 mm²
Graphics Features
12 (11_0)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3
3.0
OpenCL
1.1
1.1
Vulkan
N/A
3.0
CUDA
-
5.1
Shader Model
4.1
