GeForce GT 1030 DDR4 vs GeForce GT 640 Rev. 2
We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 1030 DDR4 and 1024MB VRAM GeForce GT 640 Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce GT 1030 DDR4 's Advantages
Released 4 years and 10 months late
Boost Clock1379MHz
More VRAM (2GB vs 1024GB)
Lower TDP (20W vs 49W)
GeForce GT 640 Rev. 2 's Advantages
Larger VRAM bandwidth (40.06GB/s vs 16.80GB/s)
Score
Benchmark
FP32 (float)
GeForce GT 1030 DDR4
+31%
1059
GeForce GT 640 Rev. 2
803
Graphics Card
Mar 2018
Release Date
May 2013
GeForce 10
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 3.0 x4
Bus Interface
PCIe 2.0 x8
Clock Speeds
1152 MHz
Base Clock
-
1379 MHz
Boost Clock
-
1050 MHz
Memory Clock
1252 MHz
Memory
2GB
Memory Size
1024MB
DDR4
Memory Type
GDDR5
64bit
Memory Bus
64bit
16.80GB/s
Bandwidth
40.06GB/s
Render Config
3
SM Count
-
384
Shading Units
384
24
TMUs
32
16
ROPs
8
48 KB (per SM)
L1 Cache
16 KB (per SMX)
512 KB
L2 Cache
512 KB
Theoretical Performance
22.06 GPixel/s
Pixel Rate
8.368 GPixel/s
33.10 GTexel/s
Texture Rate
33.47 GTexel/s
16.55 GFLOPS
FP16 (half)
-
1059 GFLOPS
FP32 (float)
803.3 GFLOPS
33.10 GFLOPS
FP64 (double)
33.47 GFLOPS
Board Design
20W
TDP
49W
200 W
Suggested PSU
200 W
1x DVI
1x HDMI 2.0
Outputs
1x DVI
1x HDMI 1.4a
1x VGA
None
Power Connectors
None
Graphics Processor
GP108
GPU Name
GK208
GP108-310-A1
GPU Variant
GK208-400-A1
Pascal
Architecture
Kepler 2.0
Samsung
Foundry
TSMC
14 nm
Process Size
28 nm
1.8 billion
Transistors
1.02 billion
74 mm²
Die Size
87 mm²
Graphics Features
12 (12_1)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.1
6.1
CUDA
3.5
6.4
Shader Model
5.1
