GeForce RTX 4080 vs Radeon HD 3870 AGP
We compared two Desktop platform GPUs: 16GB VRAM GeForce RTX 4080 and 512MB VRAM Radeon HD 3870 AGP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce RTX 4080 's Advantages
Boost Clock2505MHz
More VRAM (16GB vs 512GB)
Larger VRAM bandwidth (716.8GB/s vs 72.06GB/s)
9408 additional rendering cores
Radeon HD 3870 AGP 's Advantages
Lower TDP (106W vs 320W)
Score
Benchmark
FP32 (float)
GeForce RTX 4080
+9706%
48740
Radeon HD 3870 AGP
497
Graphics Card
Sep 2022
Release Date
Unknown
GeForce 40
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
AGP 8x
Clock Speeds
2205 MHz
Base Clock
-
2505 MHz
Boost Clock
-
1400 MHz
Memory Clock
1126 MHz
Memory
16GB
Memory Size
512MB
GDDR6X
Memory Type
GDDR4
256bit
Memory Bus
256bit
716.8GB/s
Bandwidth
72.06GB/s
Render Config
-
Compute Units
4
76
SM Count
-
9728
Shading Units
320
304
TMUs
16
112
ROPs
16
304
Tensor Cores
-
76
RT Cores
-
128 KB (per SM)
L1 Cache
-
64 MB
L2 Cache
256 KB
Theoretical Performance
280.6 GPixel/s
Pixel Rate
12.43 GPixel/s
761.5 GTexel/s
Texture Rate
12.43 GTexel/s
48.74 TFLOPS
FP16 (half)
-
48.74 TFLOPS
FP32 (float)
497.3 GFLOPS
761.5 GFLOPS
FP64 (double)
99.46 GFLOPS
Board Design
320W
TDP
106W
700 W
Suggested PSU
300 W
1x HDMI 2.1
3x DisplayPort 1.4a
Outputs
2x DVI
1x S-Video
1x 16-pin
Power Connectors
1x 8-pin
Graphics Processor
AD103
GPU Name
RV670
AD103-300-A1
GPU Variant
RV670 XT
(215-0708005)
Ada Lovelace
Architecture
TeraScale
TSMC
Foundry
TSMC
5 nm
Process Size
55 nm
45.9 billion
Transistors
0.666 billion
379 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
8.9
CUDA
-
6.7
Shader Model
4.1