GPUs

AMD Radeon HD 6770 vs AMD Radeon HD 6790 Full Specs

800 Shaders
850MHz
800 Shaders
840MHz
1GB GDDR576.8GB/s
1GB GDDR5134.4GB/s
··
1.36 TFLOPS
··
1.34 TFLOPS
Form Factor
PCIe Card
Form Factor
PCIe Card
TDP
108W
TDP
150W
Power Connectors
1x 6-Pin
Power Connectors
1x 6-Pin

Radeon HD 6770Radeon HD 67701.36 TFLOPSFP32
x1.01
Radeon HD 6790Radeon HD 67901.34 TFLOPSFP32
x1

Clock Speed
··
Clock Speed
··
Peak OPS
1.36 TFLOPSFP32
Peak OPS
1.34 TFLOPSFP32
FP32
1.36 TFLOPS
FP32
1.34 TFLOPS
Pixel Rate
13.6 GPixel/s
Pixel Rate
13.4 GPixel/s
Texture Rate
34 GTexel/s
Texture Rate
33.6 GTexel/s

Shaders
800 Shaders
Shaders
800 Shaders
TMUs
40 TMUs
TMUs
40 TMUs
ROPs
16 ROPs
ROPs
16 ROPs
CUs
10 CUs
CUs
10 CUs

Boost Clock
850MHz
Boost Clock
840MHz

L2 Cache
256KB shared
L2 Cache
512KB shared

1GB GDDR5
1GB GDDR5
Memory Bus
128-bit
Memory Bus
256-bit
Memory Speed
4.8GT/s
Memory Speed
4.2GT/s
Memory Bandwidth
76.8GB/s
Memory Bandwidth
134.4GB/s

TDP
108W
TDP
150W

Multi-Monitor
2
Multi-Monitor
2

1x DisplayPort 1.1
1x DisplayPort 1.1
1x HDMI 1.3
1x HDMI 1.3
2x DVI-I Dual-Link
2x DVI-I Dual-Link

Decoder Model
UVD 2.2
Decoder Model
UVD 3.0

Form Factor
PCIe Card
Form Factor
PCIe Card
PCIe
2-Slots
PCIe
2-Slots
Height
111 mm (4.37")
Width
198 mm (7.79")
Depth
36 mm (1.42")
Height
111 mm (4.37")
Width
198 mm (7.79")
Depth
36 mm (1.42")
Cooling
Blower
1x Fan
Cooling
Blower
1x Fan
Power Connectors
1x 6-Pin
Power Connectors
1x 6-Pin

Manufacturer
Manufacturer
Chip Designer
Chip Designer
Architecture
Architecture
Family
Family
Branding
Radeon 2011 branding
Branding
Radeon 2011 branding
Codename
Juniper
Codename
Barts
Chip Variant
Juniper Pro
Chip Variant
Barts LE
Market Segment
Desktop
Market Segment
Desktop
Release Date
Apr 19, 2011
Release Date
Apr 4, 2011

Foundry
TSMC
Foundry
TSMC
Fabrication Node
40nm
Fabrication Node
40nm
Die Size
170mm²
Die Size
255mm²
Transistor Count
1 Billion
Transistor Count
1.7 Billion
Transistor Density
6.12 MTr/mm²
Transistor Density
6.67 MTr/mm²

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