Report an Error

AMD Radeon HD 6950

Graphics Processor
Cayman
Cores
1408
TMUs
88
ROPs
32
Memory Size
2 GB
Memory Type
GDDR5
Bus Width
256 bit
GPU Chip
GPU
PCB Front
PCB Front
PCB Back
PCB Back
The Radeon HD 6950 was a performance graphics card by AMD, launched in December 2010. Built on the 40 nm process, and based on the Cayman graphics processor, in its Cayman PRO variant, the card supports DirectX 11.2. The Cayman graphics processor is a large chip with a die area of 389 mm² and 2,640 million transistors. Unlike the fully unlocked Radeon HD 6970, which uses the same GPU but has all 1536 shaders enabled, AMD has disabled some shading units on the Radeon HD 6950 to reach the product's target shader count. It features 1408 shading units, 88 texture mapping units and 32 ROPs. AMD has placed 2,048 MB GDDR5 memory on the card, which are connected using a 256-bit memory interface. The GPU is operating at a frequency of 800 MHz, memory is running at 1250 MHz.
Being a dual-slot card, the AMD Radeon HD 6950 draws power from 2x 6-pin power connectors, with power draw rated at 200 W maximum. Display outputs include: 2x DVI, 1x HDMI, 2x mini-DisplayPort. Radeon HD 6950 is connected to the rest of the system using a PCI-Express 2.0 x16 interface. The card measures 267 mm in length, and features a dual-slot cooling solution. Its price at launch was 299 US Dollars.

Graphics Processor

GPU Name
Cayman
GPU Variant
Cayman PRO
(215-0807019)
Architecture
TeraScale 3
Foundry
TSMC
Process Size
40 nm
Transistors
2,640 million
Die Size
389 mm²

Graphics Card

Release Date
Dec 14th, 2010
Generation
Northern Islands
(HD 6900)
Production
End-of-life
Launch Price
299 USD
Bus Interface
PCIe 2.0 x16
Reviews
111 in our database

Relative Performance

5%
GeForce 210
7%
GeForce 9400 GT
9%
Radeon HD 4550
11%
Radeon HD 5450
13%
Radeon HD 6450
14%
GeForce GT 520
17%
GeForce GT 220
22%
GeForce GT 430
22%
Radeon HD 5570
24%
Radeon HD 4670
26%
GeForce GT 440
26%
GeForce GT 240
30%
GeForce 9600 GT
32%
Radeon HD 5670
34%
GeForce GT 640
36%
GeForce 9800 GT
37%
Radeon HD 6670
38%
Radeon HD 4830
41%
Radeon HD 4770
43%
Radeon HD 4850
44%
GeForce GTS 250
45%
GeForce GTS 450
47%
Radeon HD 5750
53%
Radeon HD 7750
54%
Radeon HD 5770
55%
GeForce GTX 260
55%
Radeon HD 4870
56%
Radeon Vega 8
56%
GeForce GTX 550 Ti
57%
GeForce GTX 650
60%
Radeon HD 5830
63%
Radeon HD 6790
64%
Radeon HD 4890
66%
GeForce GTX 460
67%
Radeon RX Vega 11
68%
GeForce GT 1030
68%
GeForce GTX 275
68%
Radeon HD 7770 GHz Edition
69%
GeForce GTX 280
70%
GeForce GTX 465
73%
Radeon HD 6850
75%
GeForce GTX 285
80%
Radeon HD 5850
82%
GeForce GTX 650 Ti
82%
Radeon HD 7790
85%
Radeon RX 550
85%
GeForce GTX 470
88%
Radeon HD 6870
94%
Radeon HD 5870
97%
GeForce GTX 560 Ti
98%
Radeon HD 4870 X2
100%
GeForce GTX 750 Ti
100%
Radeon HD 6950
103%
GeForce GTX 295
105%
GeForce GTX 650 Ti Boost
105%
Radeon HD 7850
107%
GeForce GTX 480
112%
Radeon HD 6970
114%
Radeon R7 265
116%
Radeon RX 460
116%
Radeon R7 370
117%
GeForce GTX 660
117%
GeForce GTX 570
119%
Radeon RX 560
126%
GeForce GTX 950
128%
Radeon HD 7870 GHz Edition
131%
Radeon R9 270X
132%
GeForce GTX 660 Ti
133%
GeForce GTX 580
134%
GeForce GTX 1050
134%
Radeon HD 7950
137%
Radeon HD 5970
141%
GeForce GTX 760
151%
GeForce GTX 670
155%
GeForce GTX 960
159%
Radeon R9 380
160%
Radeon R9 285
162%
Radeon HD 7970
164%
GeForce GTX 680
167%
GeForce GTX 1050 Ti
172%
GeForce GTX 770
176%
Radeon HD 6990
180%
Radeon R9 280X
182%
GeForce GTX 590
183%
Radeon HD 7970 GHz Edition
202%
GeForce GTX 780
210%
GeForce GTX 1650
223%
Radeon RX 470
226%
Radeon R9 290
238%
Radeon RX 570
241%
Radeon R9 390
242%
Radeon R9 290X
245%
GeForce GTX 970
249%
GeForce GTX TITAN
252%
GeForce GTX 780 Ti
255%
Radeon R9 390X
257%
Radeon HD 7990
258%
Radeon RX 480
260%
GeForce GTX 690
274%
Radeon RX 580
280%
GeForce GTX 980
283%
Radeon R9 FURY
283%
GeForce GTX 1060 6 GB
296%
Radeon RX 590
312%
Radeon R9 295X2
313%
GeForce GTX 1660
317%
Radeon R9 FURY X
322%
GeForce GTX 980 Ti
331%
GeForce GTX TITAN X
360%
GeForce GTX 1660 Ti
360%
GeForce GTX 1070
383%
Radeon RX Vega 56
406%
GeForce GTX 1070 Ti
418%
Radeon RX Vega 64
424%
GeForce GTX 1080
424%
GeForce RTX 2060
441%
Radeon RX 5700
476%
GeForce RTX 2060 SUPER
493%
GeForce RTX 2070
505%
Radeon RX 5700 XT
511%
Radeon VII
524%
TITAN X Pascal
540%
GeForce GTX 1080 Ti
545%
GeForce RTX 2070 SUPER
580%
GeForce RTX 2080
615%
GeForce RTX 2080 SUPER
679%
GeForce RTX 2080 Ti
Based on TPU review data: "Performance Summary" at 1920x1080

Clock Speeds

GPU Clock
800 MHz
Memory Clock
1250 MHz
5000 MHz effective

Memory

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

Render Config

Shading Units
1408
TMUs
88
ROPs
32
Compute Units
22
L1 Cache
16 KB (per CU)
L2 Cache
512 KB

Theoretical Performance

Pixel Rate
25.60 GPixel/s
Texture Rate
70.40 GTexel/s
FP32 (float) performance
2.253 TFLOPS
FP64 (double) performance
563.2 GFLOPS (1:4)

Board Design

Slot Width
Dual-slot
Length
10.5 inches
267 mm
TDP
200 W
Suggested PSU
350 W
Outputs
2x DVI
1x HDMI
2x mini-DisplayPort
Power Connectors
2x 6-pin
Board Number
C216-47

Graphics Features

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

Cayman GPU Notes

Architecture Codename: Northern Islands
Graphics/Compute: GFX5
Display Core Engine: 5.0
Unified Video Decoder: 3.1

Retail boards based on this design (21)

Name GPU Clock Memory Clock Other Changes
ASUS HD 6950 DirectCU II 810 MHz 1250 MHz 11.7 inches/297 mm, Triple-slot, 2x DVI 4x DisplayPort
Club 3D HD 6950 CoolStream Edition 900 MHz 1250 MHz 10.83 inches/275 mm
GIGABYTE HD 6950 WindForce 3X OC 1 GB 870 MHz 1250 MHz 1024 MB, 11.42 inches/290 mm, 2x DVI 1x HDMI 1x DisplayPort
HIS HD 6950 Fan Turbo 840 MHz 1280 MHz 10.827 inches/275 mm
HIS HD 6950 IceQ X Turbo 1 GB 840 MHz 1280 MHz 1024 MB, 10.236 inches/260 mm
HIS HD 6950 IceQ X Turbo 2 GB 840 MHz 1280 MHz 10.236 inches/260 mm
HIS HD 6950 IceQ X Turbo X 1 GB 880 MHz 1300 MHz 1024 MB, 10.236 inches/260 mm
HIS HD 6950 IceQ X Turbo X 2 GB 880 MHz 1300 MHz 10.236 inches/260 mm
MSI HD 6950 Twin Frozr II OC 810 MHz 1250 MHz 10.827 inches/275 mm
MSI HD 6950 Twin Frozr III OC 850 MHz 1300 MHz 1024 MB, 10.63 inches/270 mm
MSI HD 6950 Twin Frozr III PE OC 850 MHz 1300 MHz 10.63 inches/270 mm
PowerColor HD 6950 PCS++ 880 MHz 1250 MHz 10.83 inches/275 mm
Sapphire HD 6950 800 MHz 1250 MHz
Sapphire HD 6950 Dirt3 800 MHz 1250 MHz 10.236 inches/260 mm, 2x DVI 1x HDMI 1x DisplayPort
Sapphire HD 6950 FleX 800 MHz 1250 MHz 10.63 inches/270 mm
Sapphire HD 6950 Toxic 880 MHz 1300 MHz 10.63 inches/270 mm
XFX Double D HD 6950 XXX 1 GB 830 MHz 1300 MHz 1024 MB, 10.08 inches/256 mm
XFX Double D HD 6950 XXX 2 GB 830 MHz 1300 MHz 10.08 inches/256 mm
XFX HD 6950 XXX 1 GB 830 MHz 1300 MHz 1024 MB, 10.2 inches/259 mm
XFX HD 6950 XXX 2 GB 830 MHz 1300 MHz 10.2 inches/259 mm
Yeston HD 6950 Game Master 800 MHz 1250 MHz