RTX A1000 vs GeForce GT 640
We compared two Desktop platform GPUs: 8GB VRAM RTX A1000 and 2GB VRAM GeForce GT 640 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
RTX A1000 's Advantages
Released 11 years and 10 months late
Boost Clock1462MHz
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (192.0GB/s vs 28.51GB/s)
1920 additional rendering cores
Lower TDP (50W vs 65W)
Score
Benchmark
FP32 (float)
RTX A1000
+872%
6737
GeForce GT 640
693
Graphics Card
Apr 2024
Release Date
Jun 2012
Quadro Ampere
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 4.0 x8
Bus Interface
PCIe 3.0 x16
Clock Speeds
727 MHz
Base Clock
-
1462 MHz
Boost Clock
-
1500 MHz
Memory Clock
891 MHz
Memory
8GB
Memory Size
2GB
GDDR6
Memory Type
DDR3
128bit
Memory Bus
128bit
192.0GB/s
Bandwidth
28.51GB/s
Render Config
18
SM Count
-
2304
Shading Units
384
72
TMUs
32
32
ROPs
16
72
Tensor Cores
-
18
RT Cores
-
128 KB (per SM)
L1 Cache
16 KB (per SMX)
2 MB
L2 Cache
256 KB
Theoretical Performance
46.78 GPixel/s
Pixel Rate
7.216 GPixel/s
105.3 GTexel/s
Texture Rate
28.86 GTexel/s
6.737 TFLOPS
FP16 (half)
-
6.737 TFLOPS
FP32 (float)
692.7 GFLOPS
105.3 GFLOPS
FP64 (double)
28.86 GFLOPS
Board Design
50W
TDP
65W
250 W
Suggested PSU
250 W
4x mini-DisplayPort 1.4a
Outputs
1x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
None
Power Connectors
None
Graphics Processor
GA107
GPU Name
GK107
-
GPU Variant
GK107-300-A2
Ampere
Architecture
Kepler
Samsung
Foundry
TSMC
8 nm
Process Size
28 nm
8.7 billion
Transistors
1.27 billion
200 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
8.6
CUDA
3.0
6.7
Shader Model
5.1
