AMD Radeon HD 6970 vs ATI Radeon HD 5870
GPU Specs Compare
Graphics Card
Release Date
Dec 2010
Sep 2009
Generation
Northern Islands
Evergreen
Type
Desktop
Desktop
Bus Interface
PCIe 2.0 x16
PCIe 2.0 x16
Clock Speeds
Memory Clock
1375 MHz
1200 MHz
Memory
Memory Size
2GB
1024MB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
176.0GB/s
153.6GB/s
Render Config
Compute Units
24
20
Shading Units
1536
1600
TMUs
96
80
ROPs
32
32
L1 Cache
8 KB (per CU)
8 KB (per CU)
L2 Cache
512 KB
512 KB
Theoretical Performance
Pixel Rate
28.16 GPixel/s
27.20 GPixel/s
Texture Rate
84.48 GTexel/s
68.00 GTexel/s
FP32 (float)
2.703 TFLOPS
2.720 TFLOPS
FP64 (double)
675.8 GFLOPS
544.0 GFLOPS
Graphics Processor
GPU Name
Cayman
Cypress
GPU Variant
Cayman XT(215-0807007)
Cypress XT(215-0735033)
Architecture
TeraScale 3
TeraScale 2
Foundry
TSMC
TSMC
Process Size
40 nm
40 nm
Transistors
2.64 billion
2.154 billion
Die Size
389 mm²
334 mm²
Board Design
TDP
250W
188W
Suggested PSU
600 W
450 W
Outputs
2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
Power Connectors
1x 6-pin + 1x 8-pin
2x 6-pin
Graphics Features
DirectX
11.2 (11_0)
11.2 (11_0)
OpenGL
4.4
4.4
OpenCL
1.2
1.2
Vulkan
N/A
N/A
Shader Model
5.0
5.0