NVIDIA GeForce GTX 490 vs NVIDIA A40 PCIe
We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 490 and 48GB VRAM A40 PCIe to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA A40 PCIe 's Advantages
Boost Clock1740MHz
More VRAM (48GB vs 1536GB)
Larger VRAM bandwidth (695.8GB/s vs 164.0GB/s)
10272 additional rendering cores
Lower TDP (300W vs 365W)
Score
Benchmark
FP32 (float)
GeForce GTX 490
1.166 TFLOPS
A40 PCIe
+3109%
37.42 TFLOPS
Graphics Card
Unknown
Release Date
Oct 2020
GeForce 400
Generation
Tesla
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 4.0 x16
Clock Speeds
-
Base Clock
1305 MHz
-
Boost Clock
1740 MHz
854 MHz
Memory Clock
1812 MHz
Memory
1536MB
Memory Size
48GB
GDDR5
Memory Type
GDDR6
384bit
Memory Bus
384bit
164.0GB/s
Bandwidth
695.8GB/s
Render Config
-
-
-
15
SM Count
84
480
Shading Units
10752
60
TMUs
336
48
ROPs
112
-
Tensor Cores
336
-
RT Cores
84
64 KB (per SM)
L1 Cache
128 KB (per SM)
768 KB
L2 Cache
6 MB
-
-
-
Theoretical Performance
18.24 GPixel/s
Pixel Rate
194.9 GPixel/s
36.48 GTexel/s
Texture Rate
584.6 GTexel/s
-
FP16 (half)
37.42 TFLOPS
1166 GFLOPS
FP32 (float)
37.42 TFLOPS
145.8 GFLOPS
FP64 (double)
584.6 GFLOPS
Board Design
365W
TDP
300W
750 W
Suggested PSU
700 W
3x DVI
1x mini-DisplayPort
Outputs
3x DisplayPort 1.4a
2x 8-pin
Power Connectors
8-pin EPS
Graphics Processor
GF100
GPU Name
GA102
GF100-375-A3
GPU Variant
-
Fermi
Architecture
Ampere
TSMC
Foundry
Samsung
40 nm
Process Size
8 nm
3.1 billion
Transistors
28.3 billion
529 mm²
Die Size
628 mm²
Graphics Features
12 (11_0)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
1.1
OpenCL
3.0
N/A
Vulkan
1.3
2.0
CUDA
8.6
5.1
Shader Model
6.6
