AMD Radeon RX 6500 XT vs ATI Radeon HD 3870 Mac Edition
We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 6500 XT 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
AMD Radeon RX 6500 XT 's Advantages
Released 13 years and 7 months late
Boost Clock2815MHz
More VRAM (4GB vs 512GB)
Larger VRAM bandwidth (143.9GB/s vs 72.06GB/s)
704 additional rendering cores
ATI Radeon HD 3870 Mac Edition 's Advantages
Lower TDP (106W vs 107W)
Score
Benchmark
FP32 (float)
Radeon RX 6500 XT
+1059%
5.765 TFLOPS
Radeon HD 3870 Mac Edition
0.497 TFLOPS
Graphics Card
Jan 2022
Release Date
Jun 2008
Navi II
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 4.0 x4
Bus Interface
PCIe 2.0 x16
Clock Speeds
2310 MHz
Base Clock
-
2815 MHz
Boost Clock
-
2248 MHz
Memory Clock
1126 MHz
Memory
4GB
Memory Size
512MB
GDDR6
Memory Type
GDDR4
64bit
Memory Bus
256bit
143.9GB/s
Bandwidth
72.06GB/s
Render Config
16
Compute Units
4
-
-
-
1024
Shading Units
320
64
TMUs
16
32
ROPs
16
-
-
-
16
RT Cores
-
128 KB per Array
L1 Cache
-
1024 KB
L2 Cache
256 KB
16 MB
L3 Cache
-
Theoretical Performance
90.08 GPixel/s
Pixel Rate
12.43 GPixel/s
180.2 GTexel/s
Texture Rate
12.43 GTexel/s
11.53 TFLOPS
FP16 (half)
-
5.765 TFLOPS
FP32 (float)
497.3 GFLOPS
360.3 GFLOPS
FP64 (double)
99.46 GFLOPS
Board Design
107W
TDP
106W
300 W
Suggested PSU
300 W
1x HDMI 2.1
1x DisplayPort 1.4a
Outputs
2x DVI
1x S-Video
1x 6-pin
Power Connectors
1x 6-pin
Graphics Processor
Navi 24
GPU Name
RV670
Navi 24 XT
(215-135000006)
GPU Variant
RV670 XT
(215-0708005)
RDNA 2.0
Architecture
TeraScale
TSMC
Foundry
TSMC
6 nm
Process Size
55 nm
5.4 billion
Transistors
0.666 billion
107 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)
2.2
OpenCL
N/A
1.3
Vulkan
N/A
-
-
-
6.6
Shader Model
4.1
