Radeon HD 8970 vs Radeon HD 7970

Radeon HD 8970
Radeon HD 7970
2048 Shaders
3GB GDDR5
1050MHz
2048 Shaders
3GB GDDR5
925MHz
FP32
4.3 TFLOPS
FP32
3.79 TFLOPS
-
-
-
-
Form Factor
PCIe Card
2.0-Slots
Form Factor
PCIe Card
2.0-Slots
TDP
250W
TDP
250W
Power Connectors
1x 6-Pin
1x 8-Pin
-
-
Power Connectors
1x 6-Pin
1x 8-Pin
-
-
GB5 OpenCL - N/A
0%
GB5 OpenCL - N/A
0%
GB5 CUDA - N/A
0%
GB5 CUDA - N/A
0%
GB5 Metal - N/A
0%
GB5 Metal - N/A
0%
GB5 Vulkan - N/A
0%
GB5 Vulkan - N/A
0%
OCT 2020.1 - N/A
0%
OCT 2020.1 - N/A
0%
OCT Metal - N/A
0%
OCT Metal - N/A
0%
Manufacturer
AMD
Manufacturer
AMD
Chip Designer
AMD
Chip Designer
AMD
Architecture
GCN 1
Architecture
GCN 1
Family
Radeon HD 8000
Family
Radeon HD 7000
Codename
Tahiti
-
Variant
Tahiti XT2
Codename
Tahiti
-
Variant
Tahiti XT
Market Segment
Desktop
Market Segment
Desktop
Release Date
1/8/2013
Release Date
12/22/2011
Foundry
TSMC
-
Foundry
TSMC
-
Fabrication Node
28nm
-
Fabrication Node
28nm
-
Die Size
352 mm²
-
Die Size
352 mm²
-
Transistor Count
4.3 Billion
-
Transistor Count
4.3 Billion
-
Transistor Density
12.25M/mm²
-
Transistor Density
12.25M/mm²
-
Form
PCIe Card
Form
PCIe Card
Shading Units
2048 Shaders
-
Shading Units
2048 Shaders
-
Texture Mapping Units
128 TMUs
Texture Mapping Units
128 TMUs
Render Output Units
32 ROPs
Render Output Units
32 ROPs
-
-
-
-
-
-
-
-
-
-
-
-
Compute Units
32 CUs
Compute Units
32 CUs
-
-
-
-
-
-
-
-
-
-
1000MHz Base
1050MHz
-
-
-
925MHz
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
FP32
4.3 TFLOPS
FP32
3.79 TFLOPS
-
-
-
-
FP64
1.08 TFLOPS
-
FP64
0.95 TFLOPS
-
-
-
-
-
-
-
-
-
-
-
Pixel Fillrate
33.6 GPixel/s
Pixel Fillrate
29.6 GPixel/s
-
-
-
-
Texture Fillrate
134.4 GTexel/s
Texture Fillrate
118.4 GTexel/s
-
-
-
-
L1
-
-
16KB/CU
-
L1
-
-
16KB/CU
-
L2
768KB Shared
L2
768KB Shared
-
-
-
-
-
-
3GB
GDDR5
-
3GB
GDDR5
-
Bus Width
384Bit
Bus Width
384Bit
Clock
1500MHz
Transfer Rate
6GT/s
Bandwidth
288GB/s
Clock
1375MHz
Transfer Rate
5.5GT/s
Bandwidth
264GB/s
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
TDP
250W
TDP
250W
-
-
-
-
-
-
-
-
-
-
-
-
1x DVI-I Dual-Link
-
-
-
-
-
-
2x mini-DisplayPort 1.2
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1x HDMI 1.4
-
-
-
-
-
-
-
-
-
-
-
-
1x DVI-I Dual-Link
-
-
-
-
-
-
2x mini-DisplayPort 1.2
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1x HDMI 1.4
-
-
-
-
Max Resolution
4096x2160
Max Resolution
4096x2160
Max Resolution Refresh Rate
60Hz
Max Resolution Refresh Rate
60Hz
Variable Refresh Rate
-
-
-
Variable Refresh Rate
-
-
-
Display Stream Compression (DSC)
Not Supported
Display Stream Compression (DSC)
Not Supported
Multi Monitor Support
3
Multi Monitor Support
3
-
-
-
-
Model
VCE 1.0
Model
VCE 1.0
Codec
-
-
-
-
-
-
-
-
AVC (H.264)
-
-
-
-
-
Codec
-
-
-
-
-
-
-
-
AVC (H.264)
-
-
-
-
-
Model
UVD 3.2
Model
UVD 3.2
Codec
MPEG-1
MPEG-2
MPEG-4
-
VC-1
-
-
-
AVC (H.264)
-
-
-
-
-
Codec
MPEG-1
MPEG-2
MPEG-4
-
VC-1
-
-
-
AVC (H.264)
-
-
-
-
-
Direct X
12
Direct 3D
11_1
Direct X
12
Direct 3D
11_1
OpenGL
4.6
OpenCL
2.1
Vulkan
1.2
OpenGL
4.6
OpenCL
2.1
Vulkan
1.2
Shader Model
6.5
-
-
GFX
6
-
-
-
-
Shader Model
6.5
-
-
GFX
6
-
-
-
-
-
-
-
2x Fans
-
-
-
1x Fan
Power Connectors
-
-
1x 6-Pin
1x 8-Pin
-
-
-
Power Connectors
-
-
1x 6-Pin
1x 8-Pin
-
-
-
Slots Required
2.0
PCIe Version
3.0
PCIe Lanes
16
Slots Required
2.0
PCIe Version
3.0
PCIe Lanes
16
Multi GPU Support
Supported
Type
4-way CrossFireX
Multi GPU Support
Supported
Type
4-way CrossFireX
Height
111 mm (4.37 in)
Width
275 mm (10.83 in)
Depth
38 mm (1.5 in)
Height
111 mm (4.37 in)
Width
275 mm (10.83 in)
Depth
38 mm (1.5 in)
Change Results