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AMD Radeon HD 6870 1600SP Edition

Cypress
Graphics Processor
1600
Cores
80
TMUs
32
ROPs
1024 MB
Memory Size
GDDR5
Memory Type
256 bit
Bus Width
AMD Radeon HD 6870 1600SP Edition Photo AMD Cypress Photo
The Radeon HD 6870 1600SP Edition was a graphics card by AMD, launched in January 2013. Built on the 40 nm process, and based on the Cypress graphics processor, in its Cypress XT variant, the card supports DirectX 11.2. The Cypress graphics processor is a large chip with a die area of 334 mm² and 2,154 million transistors. It features 1600 shading units, 80 texture mapping units and 32 ROPs. AMD has placed 1,024 MB GDDR5 memory on the card, which are connected using a 256-bit memory interface. The GPU is operating at a frequency of 850 MHz, memory is running at 1050 MHz.
Being a dual-slot card, the AMD Radeon HD 6870 1600SP Edition draws power from 2x 6-pin power connectors, with power draw rated at 175 W maximum. Display outputs include: 2x DVI, 1x HDMI, 2x mini-DisplayPort. Radeon HD 6870 1600SP Edition is connected to the rest of the system using a PCI-Express 2.0 x16 interface. The card measures 282 mm in length, and features a dual-slot cooling solution.

Graphics Processor

GPU Name
Cypress
GPU Variant
Cypress XT
(215-0735033)
Architecture
TeraScale 2
Foundry
TSMC
Process Size
40 nm
Transistors
2,154 million
Die Size
334 mm²

Graphics Card

Release Date
Jan 14th, 2013
Generation
Northern Islands
(HD 6800)
Production
End-of-life
Bus Interface
PCIe 2.0 x16

Relative Performance

6%
7%
9%
12%
14%
15%
18%
24%
24%
26%
27%
28%
32%
34%
36%
38%
39%
40%
43%
46%
47%
48%
50%
57%
57%
58%
59%
59%
60%
60%
64%
67%
68%
71%
71%
72%
72%
73%
73%
74%
78%
79%
85%
87%
87%
90%
90%
94%
100%
100%
Radeon HD 6870 1600SP Edition
103%
104%
106%
106%
110%
111%
112%
114%
119%
121%
123%
124%
124%
124%
134%
135%
139%
140%
141%
142%
142%
145%
145%
149%
161%
165%
169%
170%
172%
174%
178%
182%
186%
191%
194%
194%
215%
236%
239%
255%
257%
260%
264%
266%
267%
271%
272%
274%
276%
291%
297%
301%
301%
331%
336%
342%
368%
404%
418%
450%
450%
475%
530%
556%
570%
621%
707%
Based on TPU review data: "Performance Summary" at 1920x1080
Performance estimated based on architecture, shader count and clocks.

Clock Speeds

GPU Clock
850 MHz
Memory Clock
1050 MHz
4200 MHz effective

Memory

Memory Size
1024 MB
Memory Type
GDDR5
Memory Bus
256 bit
Bandwidth
134.4 GB/s

Render Config

Shading Units
1600
TMUs
80
ROPs
32
Compute Units
20

Theoretical Performance

Pixel Rate
27.20 GPixel/s
Texture Rate
68.00 GTexel/s
FP32 (float) performance
2,720 GFLOPS
FP64 (double) performance
544.0 GFLOPS (1:5)

Board Design

Slot Width
Dual-slot
Length
11.1 inches
282 mm
TDP
175 W
Outputs
2x DVI
1x HDMI
2x mini-DisplayPort
Power Connectors
2x 6-pin
Board Number
C008,
E140

Graphics Features

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

Card Notes

Rebranded HD 5870

Cypress GPU Notes

Graphics/Compute: GFX4
Display Core Engine: 4.0
Unified Video Decoder: 2.3

Retail boards based on this design (2)

Name GPU Clock Memory Clock Other Changes
Sapphire HD 6870 1600SP Edition 850 MHz 1050 MHz 1x DVI 1x HDMI 1x DisplayPort
Sapphire HD 6870 1600SP Edition OC 900 MHz 1050 MHz 1x DVI 1x HDMI 1x DisplayPort