GeForce RTX 2080 SUPER vs GeForce GT 640 OEM
We compared two Desktop platform GPUs: 8GB VRAM GeForce RTX 2080 SUPER and 2GB VRAM GeForce GT 640 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce RTX 2080 SUPER 's Advantages
Released 7 years and 3 months late
Boost Clock1815MHz
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (495.9GB/s vs 28.51GB/s)
2688 additional rendering cores
GeForce GT 640 OEM 's Advantages
Lower TDP (50W vs 250W)
Score
Benchmark
FP32 (float)
GeForce RTX 2080 SUPER
+1721%
11150
GeForce GT 640 OEM
612
Graphics Card
Jul 2019
Release Date
Apr 2012
GeForce 20
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1650 MHz
Base Clock
-
1815 MHz
Boost Clock
-
1937 MHz
Memory Clock
891 MHz
Memory
8GB
Memory Size
2GB
GDDR6
Memory Type
DDR3
256bit
Memory Bus
128bit
495.9GB/s
Bandwidth
28.51GB/s
Render Config
48
SM Count
-
3072
Shading Units
384
192
TMUs
32
64
ROPs
16
384
Tensor Cores
-
48
RT Cores
-
64 KB (per SM)
L1 Cache
16 KB (per SMX)
4 MB
L2 Cache
256 KB
Theoretical Performance
116.2 GPixel/s
Pixel Rate
6.376 GPixel/s
348.5 GTexel/s
Texture Rate
25.50 GTexel/s
22.30 TFLOPS
FP16 (half)
-
11.15 TFLOPS
FP32 (float)
612.1 GFLOPS
348.5 GFLOPS
FP64 (double)
25.50 GFLOPS
Board Design
250W
TDP
50W
600 W
Suggested PSU
250 W
1x HDMI 2.0
3x DisplayPort 1.4a
1x USB Type-C
Outputs
1x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
1x 6-pin + 1x 8-pin
Power Connectors
None
Graphics Processor
TU104
GPU Name
GK107
TU104-450-A1
GPU Variant
GK107-320-A2
Turing
Architecture
Kepler
TSMC
Foundry
TSMC
12 nm
Process Size
28 nm
13.6 billion
Transistors
1.27 billion
545 mm²
Die Size
118 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.1
7.5
CUDA
3.0
6.6
Shader Model
5.1
