GeForce RTX 2080 SUPER vs GeForce GT 640 Rev. 2
We compared two Desktop platform GPUs: 8GB VRAM GeForce RTX 2080 SUPER 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 RTX 2080 SUPER 's Advantages
Released 6 years and 2 months late
Boost Clock1815MHz
More VRAM (8GB vs 1024GB)
Larger VRAM bandwidth (495.9GB/s vs 40.06GB/s)
2688 additional rendering cores
GeForce GT 640 Rev. 2 's Advantages
Lower TDP (49W vs 250W)
Score
Benchmark
FP32 (float)
GeForce RTX 2080 SUPER
+1288%
11150
GeForce GT 640 Rev. 2
803
Graphics Card
Jul 2019
Release Date
May 2013
GeForce 20
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x8
Clock Speeds
1650 MHz
Base Clock
-
1815 MHz
Boost Clock
-
1937 MHz
Memory Clock
1252 MHz
Memory
8GB
Memory Size
1024MB
GDDR6
Memory Type
GDDR5
256bit
Memory Bus
64bit
495.9GB/s
Bandwidth
40.06GB/s
Render Config
48
SM Count
-
3072
Shading Units
384
192
TMUs
32
64
ROPs
8
384
Tensor Cores
-
48
RT Cores
-
64 KB (per SM)
L1 Cache
16 KB (per SMX)
4 MB
L2 Cache
512 KB
Theoretical Performance
116.2 GPixel/s
Pixel Rate
8.368 GPixel/s
348.5 GTexel/s
Texture Rate
33.47 GTexel/s
22.30 TFLOPS
FP16 (half)
-
11.15 TFLOPS
FP32 (float)
803.3 GFLOPS
348.5 GFLOPS
FP64 (double)
33.47 GFLOPS
Board Design
250W
TDP
49W
600 W
Suggested PSU
200 W
1x HDMI 2.0
3x DisplayPort 1.4a
1x USB Type-C
Outputs
1x DVI
1x HDMI 1.4a
1x VGA
1x 6-pin + 1x 8-pin
Power Connectors
None
Graphics Processor
TU104
GPU Name
GK208
TU104-450-A1
GPU Variant
GK208-400-A1
Turing
Architecture
Kepler 2.0
TSMC
Foundry
TSMC
12 nm
Process Size
28 nm
13.6 billion
Transistors
1.02 billion
545 mm²
Die Size
87 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
3.5
6.6
Shader Model
5.1
