AMD Radeon HD 7870 GHz Edition vs AMD Radeon RX 6600S
GPU Specs Compare
Graphics Card
Release Date
Mar 2012
Jan 2022
Generation
Southern Islands
Mobility Radeon
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x8
Clock Speeds
Memory Clock
1200 MHz
1750 MHz
Base Clock
-
1700 MHz
Boost Clock
-
2000 MHz
Memory
Memory Size
2GB
4GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
128bit
Bandwidth
153.6GB/s
224.0GB/s
Render Config
Compute Units
20
28
Shading Units
1280
1792
TMUs
80
112
ROPs
32
64
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
512 KB
2 MB
RT Cores
-
28
L3 Cache
-
32 MB
Theoretical Performance
Pixel Rate
32.00 GPixel/s
128.0 GPixel/s
Texture Rate
80.00 GTexel/s
224.0 GTexel/s
FP32 (float)
2.560 TFLOPS
7.168 TFLOPS
FP64 (double)
160.0 GFLOPS
448.0 GFLOPS
FP16 (half)
-
14.34 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
80W
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
📊 Benchmark
3DMark Time Spy
-
7,700
3DMark Time Spy Extreme
-
3,389