Radeon HD 7970 vs Radeon R9 270X

Radeon HD 7970
Radeon R9 270X
2048 Shaders
3GB GDDR5
925MHz
1280 Shaders
2GB GDDR5
1050MHz
FP32
3.79 TFLOPS
FP32
2.69 TFLOPS
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Form Factor
PCIe Card
2.0-Slots
Form Factor
PCIe Card
2.0-Slots
TDP
250W
TDP
180W
Power Connectors
1x 6-Pin
1x 8-Pin
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Power Connectors
2x 6-Pin
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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 7000
Family
Radeon R 200
Codename
Tahiti
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Variant
Tahiti XT
Codename
Pitcairn
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Variant
Curacao XT
Market Segment
Desktop
Market Segment
Desktop
Release Date
12/22/2011
Release Date
8/8/2013
Foundry
TSMC
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Foundry
TSMC
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Fabrication Node
28nm
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Fabrication Node
28nm
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Die Size
352 mm²
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Die Size
212 mm²
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Transistor Count
4.3 Billion
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Transistor Count
2.8 Billion
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Transistor Density
12.25M/mm²
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Transistor Density
13.21M/mm²
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Form
PCIe Card
Form
PCIe Card
Shading Units
2048 Shaders
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Shading Units
1280 Shaders
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Texture Mapping Units
128 TMUs
Texture Mapping Units
80 TMUs
Render Output Units
32 ROPs
Render Output Units
32 ROPs
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Compute Units
32 CUs
Compute Units
20 CUs
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925MHz
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1000MHz Base
1050MHz
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FP32
3.79 TFLOPS
FP32
2.69 TFLOPS
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FP64
0.95 TFLOPS
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FP64
0.17 TFLOPS
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Pixel Fillrate
29.6 GPixel/s
Pixel Fillrate
33.6 GPixel/s
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Texture Fillrate
118.4 GTexel/s
Texture Fillrate
84 GTexel/s
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L1
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16KB/CU
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L1
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16KB/CU
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L2
768KB Shared
L2
512KB Shared
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3GB
GDDR5
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2GB
GDDR5
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Bus Width
384Bit
Bus Width
256Bit
Clock
1375MHz
Transfer Rate
5.5GT/s
Bandwidth
264GB/s
Clock
1400MHz
Transfer Rate
5.6GT/s
Bandwidth
179.2GB/s
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TDP
250W
TDP
180W
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1x DVI-I Dual-Link
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2x mini-DisplayPort 1.2
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1x HDMI 1.4
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1x DVI-I Dual-Link
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1x DVI-D Dual-Link
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1x DisplayPort 1.2
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1x HDMI 1.4
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Max Resolution
4096x2160
Max Resolution
4096x2160
Max Resolution Refresh Rate
60Hz
Max Resolution Refresh Rate
60Hz
Variable Refresh Rate
-
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Variable Refresh Rate
-
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Display Stream Compression (DSC)
Not Supported
Display Stream Compression (DSC)
Not Supported
Multi Monitor Support
3
Multi Monitor Support
3
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Model
VCE 1.0
Model
VCE 1.0
Codec
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AVC (H.264)
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Codec
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AVC (H.264)
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Model
UVD 3.2
Model
UVD 3.2
Codec
MPEG-1
MPEG-2
MPEG-4
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VC-1
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AVC (H.264)
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Codec
MPEG-1
MPEG-2
MPEG-4
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VC-1
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AVC (H.264)
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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
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GFX
6
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Shader Model
6.5
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GFX
6
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1x Fan
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1x Fan
Power Connectors
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1x 6-Pin
1x 8-Pin
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Power Connectors
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2x 6-Pin
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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
2-way CrossFireX
Height
111 mm (4.37 in)
Width
275 mm (10.83 in)
Depth
38 mm (1.5 in)
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Change Results