ATI Radeon HD 5870 vs AMD Radeon HD 6950

What is the difference between ATI Radeon HD 5870 and AMD Radeon HD 6950. Find out which graphics card has better performance.

Radeon HD 5870

Radeon HD 6950

Graphics Processor (GPU)

Cypress	GPU Name	Cayman
Cypress XT (215-0735033)	Model number	Cayman PRO (215-0807019)
TeraScale 2	Architecture	TeraScale 3
TSMC	Foundry	TSMC
40 nm	Process Size	40 nm
2,154 million	Transistors	2,640 million
334 mm²	Die Size	389 mm²

Graphics Card

Sep 23rd, 2009	Release Date	Dec 14th, 2010
Evergreen (HD 5800)	Family	Northern Islands (HD 6900)
End-of-life	Production	End-of-life
399 USD	Launch Price	299 USD
Radeon R700	Predecessor	Evergreen
PCIe 2.0 x16	Bus Interface	PCIe 2.0 x16

Memory

1024 MB	Memory Size	2 GB
GDDR5	Memory Type	GDDR5
256 bit	Memory Bus	256 bit
153.6 GB/s	Bandwidth	160.0 GB/s

Performance

27.20 GPixel/s	Pixel fillrate	25.60 GPixel/s
68.00 GTexel/s	Texture fillrate	70.40 GTexel/s
2.720 TFLOPS	FP32 (float) performance	2.253 TFLOPS
544.0 GFLOPS (1:5)	FP64 (double) performance	563.2 GFLOPS (1:4)

Clock Speeds

1200 MHz 4.8 Gbps effective	Memory Clock	1250 MHz 5 Gbps effective
850 MHz	GPU Clock	800 MHz

Render Config

1600	Shading Units	1408
80	TMUs	88
32	ROPs	32
20	Compute Units	22
8 KB (per CU)	L1 Cache	8 KB (per CU)
512 KB	L2 Cache	512 KB

Board Design

Dual-slot	Slot Width	Dual-slot
280 mm 11 inches	Length	286 mm 11.3 inches
111 mm 4.4 inches	Width	126 mm 5 inches
37 mm 1.5 inches	Height	42 mm 1.7 inches
188 W	Thermal design power (TDP)	200 W
450 W	Suggested PSU	550 W
2x DVI 1x HDMI 1x DisplayPort	Display Connectors	2x DVI 1x HDMI 2x mini-DisplayPort
2x 6-pin	Power Connectors	2x 6-pin
C001-37	Board Number	C216-47

API support

11.2 (11_0)	DirectX	11.2 (11_0)
4.4	OpenGL	4.4
1.2	OpenCL	1.2
N/A	Vulkan	N/A
5.0	Shader Model	5.0