Radeon HD 7870 and Radeon RX 6900 XT - video card comparison
Passmark - benchmark score Radeon HD 7870 vs Radeon RX 6900 XT
Radeon HD 7870
4779
Radeon RX 6900 XT
27641
Radeon HD 7870
Radeon RX 6900 XT
Architecture
GCN (2011−2017)
Navi / RDNA2 (2020−2022)
GPU code name
Pitcairn XT
Navi 21
Market segment
Desktop
Desktop
Release date
March 2012
December 2020
Interface
PCIe 3.0 x16
PCIe 4.0 x16
Supplementary power connectors
2x 6-pin
2x 8-pin
Boost clock speed
-
2250 MHz
Core clock speed
1000 MHz
1825 MHz
Manufacturing process technology
28 nm
7 nm
Number of transistors
2800 Million
26,800 million
Pipelines / CUDA cores
1280
5120
Power consumption (TDP)
175 Watt
300 Watt
Texture fill rate
80.00
720.0
Memory type
GDDR5
GDDR6
Maximum RAM amount
2 GB
16 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
4800 MHz
16000 MHz
Memory bandwidth
153.6 GB/s
512.0 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
1x HDMI, 2x DisplayPort, 1x USB Type-C
Eyefinity
+
-
HDMI
+
+
DirectX
12 (11_1)
12 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