AMD Radeon HD 8870 OEM vs AMD Radeon RX 6650M XT
GPU Specs Compare
Graphics Card
Release Date
Jan 2013
Jan 2022
Generation
Sea Islands
Mobility Radeon
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x8
Clock Speeds
Memory Clock
1200 MHz
2000 MHz
Base Clock
-
2068 MHz
Boost Clock
-
2416 MHz
Memory
Memory Size
2GB
8GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
128bit
Bandwidth
153.6GB/s
256.0GB/s
Render Config
Compute Units
20
32
Shading Units
1280
2048
TMUs
80
128
ROPs
32
64
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
512 KB
2 MB
RT Cores
-
32
L3 Cache
-
32 MB
Theoretical Performance
Pixel Rate
32.00 GPixel/s
154.6 GPixel/s
Texture Rate
80.00 GTexel/s
309.2 GTexel/s
FP32 (float)
2.560 TFLOPS
9.896 TFLOPS
FP64 (double)
160.0 GFLOPS
618.5 GFLOPS
FP16 (half)
-
19.79 TFLOPS
Graphics Processor
GPU Name
Pitcairn
Navi 23
GPU Variant
Pitcairn XT(215-0828047)
-
Architecture
GCN 1.0
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
7 nm
Transistors
2.8 billion
11.06 billion
Die Size
212 mm²
237 mm²
Board Design
TDP
175W
120W
Suggested PSU
450 W
-
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
No outputs
Power Connectors
2x 6-pin
None
Graphics Features
DirectX
12 (11_1)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
1.2
2.1
Vulkan
1.2
1.3
Shader Model
5.1
6.5