AMD Radeon HD 8770 OEM vs AMD Radeon HD 6970
GPU · Specs Compare
Graphics Card
Release Date
Sep 2013
Dec 2010
Generation
Sea Islands
Northern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 2.0 x16
Clock Speeds
Memory Clock
1500 MHz
1375 MHz
Memory
Memory Size
1024MB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
128bit
256bit
Bandwidth
96.00GB/s
176.0GB/s
Render Config
Compute Units
14
24
Shading Units
896
1536
TMUs
56
96
ROPs
16
32
L1 Cache
16 KB (per CU)
8 KB (per CU)
L2 Cache
256 KB
512 KB
Theoretical Performance
Pixel Rate
16.80 GPixel/s
28.16 GPixel/s
Texture Rate
58.80 GTexel/s
84.48 GTexel/s
FP32 (float)
1.882 TFLOPS
2.703 TFLOPS
FP64 (double)
117.6 GFLOPS
675.8 GFLOPS
Graphics Processor
GPU Name
Bonaire
Cayman
GPU Variant
Bonaire XT(215-0839039)
Cayman XT(215-0807007)
Architecture
GCN 2.0
TeraScale 3
Foundry
TSMC
TSMC
Process Size
28 nm
40 nm
Transistors
2.08 billion
2.64 billion
Die Size
160 mm²
389 mm²
Board Design
TDP
85W
250W
Suggested PSU
250 W
600 W
Outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
Power Connectors
1x 6-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 (12_0)
11.2 (11_0)
OpenGL
4.6
4.4
OpenCL
2.0
1.2
Vulkan
1.2
N/A
Shader Model
6.3
5.0
▲ Specs Compare
Data sourced from official specifications and benchmark tests.