Radeon HD 8770 vs Radeon HD 7850

Radeon HD 8770
Radeon HD 7850
896 Shaders
2GB GDDR5
1000MHz
1024 Shaders
2GB GDDR5
860MHz
FP32
1.79 TFLOPS
FP32
1.76 TFLOPS
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-
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Form Factor
PCIe Card
2.0-Slots
Form Factor
PCIe Card
2.0-Slots
TDP
85W
TDP
130W
Power Connectors
1x 6-Pin
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-
-
Power Connectors
1x 6-Pin
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-
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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 2
Architecture
GCN 1
Family
Radeon HD 8000
Family
Radeon HD 7000
Codename
Bonaire
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Variant
Bonaire XT
Codename
Pitcairn
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Variant
Pitcairn Pro
Market Segment
Desktop
Market Segment
Desktop
Release Date
9/2/2013
Release Date
3/5/2012
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
160 mm²
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Die Size
212 mm²
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Transistor Count
2.1 Billion
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Transistor Count
2.8 Billion
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Transistor Density
13.00M/mm²
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Transistor Density
13.21M/mm²
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Form
PCIe Card
Form
PCIe Card
Shading Units
896 Shaders
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Shading Units
1024 Shaders
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Texture Mapping Units
56 TMUs
Texture Mapping Units
64 TMUs
Render Output Units
16 ROPs
Render Output Units
32 ROPs
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Compute Units
14 CUs
Compute Units
16 CUs
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1000MHz
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860MHz
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FP32
1.79 TFLOPS
FP32
1.76 TFLOPS
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FP64
0.11 TFLOPS
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FP64
0.11 TFLOPS
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Pixel Fillrate
16 GPixel/s
Pixel Fillrate
27.52 GPixel/s
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Texture Fillrate
56 GTexel/s
Texture Fillrate
55.04 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
256KB Shared
L2
512KB Shared
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2GB
GDDR5
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2GB
GDDR5
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Bus Width
128Bit
Bus Width
256Bit
Clock
1500MHz
Transfer Rate
6GT/s
Bandwidth
96GB/s
Clock
1200MHz
Transfer Rate
4.8GT/s
Bandwidth
153.6GB/s
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TDP
85W
TDP
130W
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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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2x mini-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
-
FreeSync
-
Variable Refresh Rate
-
-
-
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 2.0
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 4.2
Model
UVD 4.0
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
12_0
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
7
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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
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Power Connectors
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1x 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
2-way CrossFireX
Multi GPU Support
Supported
Type
2-way CrossFireX
Height
111 mm (4.37 in)
Width
183 mm (7.2 in)
Depth
37 mm (1.46 in)
Height
111 mm (4.37 in)
Width
210 mm (8.27 in)
Depth
37 mm (1.46 in)
Change Results