Intel Arc A780 vs ATI Radeon HD 3870 Mac Edition
We compared two Desktop platform GPUs: 16GB VRAM Arc A780 and 512MB VRAM Radeon HD 3870 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Intel Arc A780 's Advantages
Boost Clock2200MHz
More VRAM (16GB vs 512GB)
Larger VRAM bandwidth (559.6GB/s vs 72.06GB/s)
3776 additional rendering cores
ATI Radeon HD 3870 Mac Edition 's Advantages
Lower TDP (106W vs 200W)
Score
Benchmark
FP32 (float)
Arc A780
+3525%
18.02 TFLOPS
Radeon HD 3870 Mac Edition
0.497 TFLOPS
Graphics Card
Unknown
Release Date
Jun 2008
Alchemist(Arc 7)
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
2200 MHz
Base Clock
-
2200 MHz
Boost Clock
-
1093 MHz
Memory Clock
1126 MHz
Memory
16GB
Memory Size
512MB
GDDR6X
Memory Type
GDDR4
256bit
Memory Bus
256bit
559.6GB/s
Bandwidth
72.06GB/s
Render Config
-
Compute Units
4
-
-
-
4096
Shading Units
320
256
TMUs
16
128
ROPs
16
512
Tensor Cores
-
32
RT Cores
-
-
-
-
16 MB
L2 Cache
256 KB
-
-
-
Theoretical Performance
281.6 GPixel/s
Pixel Rate
12.43 GPixel/s
563.2 GTexel/s
Texture Rate
12.43 GTexel/s
36.04 TFLOPS
FP16 (half)
-
18.02 TFLOPS
FP32 (float)
497.3 GFLOPS
2.253 TFLOPS
FP64 (double)
99.46 GFLOPS
Board Design
200W
TDP
106W
550 W
Suggested PSU
300 W
1x HDMI 2.13x DisplayPort 2.0
Outputs
2x DVI
1x S-Video
2x 8-pin
Power Connectors
1x 6-pin
Graphics Processor
DG2-512
GPU Name
RV670
ACM-G10
GPU Variant
RV670 XT
(215-0708005)
Generation 12.7
Architecture
TeraScale
TSMC
Foundry
TSMC
6 nm
Process Size
55 nm
21.7 billion
Transistors
0.666 billion
406 mm²
Die Size
192 mm²
Graphics Features
12 Ultimate (12_2)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3 (full)
4.0 (partial)
3.0
OpenCL
N/A
1.3
Vulkan
N/A
-
-
-
6.6
Shader Model
4.1
