NVIDIA GeForce GT 120 Mac Edition vs NVIDIA GeForce GT 640
We compared two Desktop platform GPUs: 512MB VRAM GeForce GT 120 Mac Edition and 2GB VRAM GeForce GT 640 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 120 Mac Edition 's Advantages
Lower TDP (50W vs 65W)
NVIDIA GeForce GT 640 's Advantages
Released 3 years and 5 months late
More VRAM (2GB vs 512GB)
Larger VRAM bandwidth (28.51GB/s vs 25.60GB/s)
352 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce GT 120 Mac Edition
0.09 TFLOPS
GeForce GT 640
+670%
0.693 TFLOPS
Graphics Card
Jan 2009
Release Date
Jun 2012
GeForce 100
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
-
-
-
-
-
800 MHz
Memory Clock
891 MHz
Memory
512MB
Memory Size
2GB
GDDR3
Memory Type
DDR3
128bit
Memory Bus
128bit
25.60GB/s
Bandwidth
28.51GB/s
Render Config
-
-
-
4
SM Count
-
32
Shading Units
384
16
TMUs
32
8
ROPs
16
-
-
-
-
-
-
-
L1 Cache
16 KB (per SMX)
32 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
4.400 GPixel/s
Pixel Rate
7.216 GPixel/s
8.800 GTexel/s
Texture Rate
28.86 GTexel/s
-
-
-
89.60 GFLOPS
FP32 (float)
692.7 GFLOPS
-
FP64 (double)
28.86 GFLOPS
Board Design
50W
TDP
65W
250 W
Suggested PSU
250 W
1x DVI
1x mini-DisplayPort
Outputs
1x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
None
Power Connectors
None
Graphics Processor
G96C
GPU Name
GK107
-
GPU Variant
GK107-300-A2
Tesla
Architecture
Kepler
TSMC
Foundry
TSMC
55 nm
Process Size
28 nm
0.314 billion
Transistors
1.27 billion
121 mm²
Die Size
118 mm²
Graphics Features
11.1 (10_0)
DirectX
12 (11_0)
3.3
OpenGL
4.6
1.1
OpenCL
3.0
N/A
Vulkan
1.1
1.1
CUDA
3.0
4.0
Shader Model
5.1
