Radeon HD 7870 XT and Radeon RX 6600 - video card comparison
Passmark - benchmark score Radeon HD 7870 XT vs Radeon RX 6600
Radeon HD 7870 XT
4603
Radeon RX 6600
15586
Radeon HD 7870 XT
Radeon RX 6600
Architecture
GCN 1.0 (2012−2020)
Navi / RDNA2 (2020−2022)
GPU code name
Tahiti
Navi 23
Market segment
Desktop
Desktop
Release date
November 2012
October 2021
Interface
PCIe 3.0 x16
PCIe 4.0 x8
Supplementary power connectors
2x 6-pin
1x 8-pin
Boost clock speed
975 MHz
2491 MHz
Core clock speed
925 MHz
2044 MHz
Floating-point performance
2,995 gflops
-
Manufacturing process technology
28 nm
7 nm
Number of transistors
4,313 million
11,060 million
Pipelines / CUDA cores
1536
1792
Power consumption (TDP)
185 Watt
132 Watt
Texture fill rate
93.60
279.0
Memory type
GDDR5
GDDR6
Maximum RAM amount
2 GB
8 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
6000 MHz
14500 MHz
Memory bandwidth
192.0 GB/s
224.0 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
1x HDMI, 3x DisplayPort
HDMI
+
+
DirectX
12 (11_1)
12.0 Ultimate (12_2)
OpenCL
1.2
2.1
OpenGL
4.6
4.6
Shader Model
5.1
6.5
Vulkan
1.2.131
1.2