GeForce RTX 4090 vs Arc A780
We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 4090 and 16GB VRAM Arc A780 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce RTX 4090 's Advantages
Boost Clock has increased by 15% (2520MHz vs 2200MHz)
More VRAM (24GB vs 16GB)
Larger VRAM bandwidth (1.01TB/s vs 559.6GB/s)
12288 additional rendering cores
Arc A780 's Advantages
Lower TDP (200W vs 450W)
Score
Benchmark
FP32 (float)
GeForce RTX 4090
+358%
82580
Arc A780
18020
Graphics Card
Sep 2022
Release Date
Unknown
GeForce 40
Generation
Alchemist(Arc 7)
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 4.0 x16
Clock Speeds
2235 MHz
Base Clock
2200 MHz
2520 MHz
Boost Clock
2200 MHz
1313 MHz
Memory Clock
1093 MHz
Memory
24GB
Memory Size
16GB
GDDR6X
Memory Type
GDDR6X
384bit
Memory Bus
256bit
1.01TB/s
Bandwidth
559.6GB/s
Render Config
128
SM Count
-
16384
Shading Units
4096
512
TMUs
256
176
ROPs
128
512
Tensor Cores
512
128
RT Cores
32
128 KB (per SM)
L1 Cache
-
72 MB
L2 Cache
16 MB
Theoretical Performance
443.5 GPixel/s
Pixel Rate
281.6 GPixel/s
1290 GTexel/s
Texture Rate
563.2 GTexel/s
82.58 TFLOPS
FP16 (half)
36.04 TFLOPS
82.58 TFLOPS
FP32 (float)
18.02 TFLOPS
1290 GFLOPS
FP64 (double)
2.253 TFLOPS
Board Design
450W
TDP
200W
850 W
Suggested PSU
550 W
1x HDMI 2.1
3x DisplayPort 1.4a
Outputs
1x HDMI 2.13x DisplayPort 2.0
1x 16-pin
Power Connectors
2x 8-pin
Graphics Processor
AD102
GPU Name
DG2-512
AD102-300-A1
GPU Variant
ACM-G10
Ada Lovelace
Architecture
Generation 12.7
TSMC
Foundry
TSMC
5 nm
Process Size
6 nm
76.3 billion
Transistors
21.7 billion
609 mm²
Die Size
406 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.3
8.9
CUDA
-
6.8
Shader Model
6.6
