Radeon HD 7870 XT and Radeon HD 7790 - video card comparison
Passmark - benchmark score Radeon HD 7870 XT vs Radeon HD 7790
Radeon HD 7870 XT
4603
Radeon HD 7790
3183
Radeon HD 7870 XT
Radeon HD 7790
Architecture
GCN 1.0 (2012−2020)
GCN 2.0 (2013−2017)
GPU code name
Tahiti
Bonaire
Market segment
Desktop
Desktop
Release date
November 2012
March 2013
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
2x 6-pin
1x 6-pin
Boost clock speed
975 MHz
-
Core clock speed
925 MHz
1000 MHz
Floating-point performance
2,995 gflops
1,792 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
4,313 million
2,080 million
Pipelines / CUDA cores
1536
896
Power consumption (TDP)
185 Watt
85 Watt
Texture fill rate
93.60
56.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
1 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
6000 MHz
6000 MHz
Memory bandwidth
192.0 GB/s
96 GB/s
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
1x DVI, 1x HDMI, 2x mini-DisplayPort
HDMI
+
+
DirectX
12 (11_1)
12 (12_0)
OpenCL
1.2
2.0
OpenGL
4.6
4.6
Shader Model
5.1
6.3
Vulkan
1.2.131
1.2.131