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AMD Radeon HD 8950 OEM

Graphics Processor
Tahiti
Cores
1792
TMUs
112
ROPs
32
Memory Size
3 GB
Memory Type
GDDR5
Bus Width
384 bit
The Radeon HD 8950 OEM was a graphics card by AMD, launched in January 2013. Built on the 28 nm process, and based on the Tahiti graphics processor, in its Tahiti PRO variant, the card supports DirectX 12.0. The Tahiti graphics processor is a large chip with a die area of 352 mm² and 4,313 million transistors. Unlike the fully unlocked Radeon HD 7970, which uses the same GPU but has all 2048 shaders enabled, AMD has disabled some shading units on the Radeon HD 8950 OEM to reach the product's target shader count. It features 1792 shading units, 112 texture mapping units and 32 ROPs. AMD has placed 3,072 MB GDDR5 memory on the card, which are connected using a 384-bit memory interface. The GPU is operating at a frequency of 850 MHz, which can be boosted up to 925 MHz, memory is running at 1250 MHz.
Being a dual-slot card, the AMD Radeon HD 8950 OEM draws power from 2x 6-pin power connectors, with power draw rated at 200 W maximum. Display outputs include: 1x DVI, 1x HDMI, 2x mini-DisplayPort. Radeon HD 8950 OEM is connected to the rest of the system using a PCI-Express 3.0 x16 interface. The card measures 267 mm in length, and features a dual-slot cooling solution.

Graphics Processor

GPU Name
Tahiti
GPU Variant
Tahiti PRO
(215-0821056)
Architecture
GCN 1.0
Foundry
TSMC
Process Size
28 nm
Transistors
4,313 million
Die Size
352 mm²

Graphics Card

Release Date
Jan 8th, 2013
Generation
Sea Islands
(HD 8900)
Production
End-of-life
Bus Interface
PCIe 3.0 x16

Relative Performance

4%
GeForce 210
5%
GeForce 9400 GT
6%
Radeon HD 4550
7%
Radeon HD 5450
8%
Radeon HD 6450
9%
GeForce GT 520
11%
GeForce GT 220
14%
GeForce GT 430
14%
Radeon HD 5570
16%
Radeon HD 4670
17%
GeForce GT 440
17%
GeForce GT 240
19%
GeForce 9600 GT
21%
Radeon HD 5670
22%
GeForce GT 640
23%
GeForce 9800 GT
24%
Radeon HD 6670
25%
Radeon HD 4830
26%
Radeon HD 4770
28%
Radeon HD 4850
28%
GeForce GTS 250
29%
GeForce GTS 450
30%
Radeon HD 5750
34%
Radeon HD 7750
35%
Radeon HD 5770
35%
GeForce GTX 260
36%
Radeon HD 4870
36%
Radeon Vega 8
36%
GeForce GTX 550 Ti
37%
GeForce GTX 650
39%
Radeon HD 5830
41%
Radeon HD 6790
41%
Radeon HD 4890
43%
GeForce GTX 460
43%
Radeon RX Vega 11
44%
GeForce GT 1030
44%
GeForce GTX 275
44%
Radeon HD 7770 GHz Edition
44%
GeForce GTX 280
45%
GeForce GTX 465
47%
Radeon HD 6850
48%
GeForce GTX 285
52%
Radeon HD 5850
53%
Radeon HD 7790
53%
GeForce GTX 650 Ti
55%
Radeon RX 550
55%
GeForce GTX 470
57%
Radeon HD 6870
61%
Radeon HD 5870
63%
GeForce GTX 560 Ti
63%
Radeon HD 4870 X2
64%
GeForce GTX 750 Ti
64%
Radeon HD 6950
67%
GeForce GTX 295
67%
GeForce GTX 650 Ti Boost
68%
Radeon HD 7850
69%
GeForce GTX 480
72%
Radeon HD 6970
74%
Radeon R7 265
75%
Radeon RX 460
75%
Radeon R7 370
75%
GeForce GTX 660
75%
GeForce GTX 570
77%
Radeon RX 560
81%
GeForce GTX 950
82%
Radeon HD 7870 GHz Edition
84%
Radeon R9 270X
85%
GeForce GTX 660 Ti
86%
GeForce GTX 580
86%
GeForce GTX 1050
86%
Radeon HD 7950
88%
Radeon HD 5970
91%
GeForce GTX 760
98%
GeForce GTX 670
100%
Radeon HD 8950 OEM
100%
GeForce GTX 960
103%
Radeon R9 380
103%
Radeon R9 285
104%
Radeon HD 7970
105%
GeForce GTX 680
108%
GeForce GTX 1050 Ti
111%
GeForce GTX 770
113%
Radeon HD 6990
116%
Radeon R9 280X
118%
GeForce GTX 590
118%
Radeon HD 7970 GHz Edition
130%
GeForce GTX 780
135%
GeForce GTX 1650
143%
Radeon RX 470
145%
Radeon R9 290
155%
Radeon R9 390
156%
Radeon R9 290X
158%
GeForce GTX 970
160%
GeForce GTX TITAN
162%
Radeon RX 570
162%
GeForce GTX 780 Ti
165%
Radeon R9 390X
165%
Radeon HD 7990
166%
Radeon RX 480
168%
GeForce GTX 690
177%
Radeon RX 580
180%
GeForce GTX 980
183%
GeForce GTX 1060 6 GB
183%
Radeon R9 FURY
183%
Radeon RX 590
201%
Radeon R9 295X2
204%
Radeon R9 FURY X
208%
GeForce GTX 980 Ti
223%
GeForce GTX TITAN X
234%
GeForce GTX 1660 Ti
235%
GeForce GTX 1070
246%
Radeon RX Vega 56
267%
GeForce GTX 1070 Ti
273%
Radeon RX Vega 64
273%
GeForce RTX 2060
280%
GeForce GTX 1080
322%
Radeon VII
322%
GeForce RTX 2070
338%
TITAN X Pascal
346%
GeForce GTX 1080 Ti
374%
GeForce RTX 2080
433%
GeForce RTX 2080 Ti
Based on TPU review data: "Performance Summary" at 1920x1080
Performance estimated based on architecture, shader count and clocks.

Clock Speeds

GPU Clock
850 MHz
Boost Clock
925 MHz
Memory Clock
1250 MHz
5000 MHz effective

Memory

Memory Size
3 GB
Memory Type
GDDR5
Memory Bus
384 bit
Bandwidth
240.0 GB/s

Render Config

Shading Units
1792
TMUs
112
ROPs
32
Compute Units
28
L1 Cache
16 KB (per CU)
L2 Cache
768 KB

Theoretical Performance

Pixel Rate
29.60 GPixel/s
Texture Rate
103.6 GTexel/s
FP32 (float) performance
3.315 TFLOPS
FP64 (double) performance
828.8 GFLOPS (1:4)

Board Design

Slot Width
Dual-slot
Length
10.5 inches
267 mm
TDP
200 W
Outputs
1x DVI
1x HDMI
2x mini-DisplayPort
Power Connectors
2x 6-pin
Board Number
C386-42

Graphics Features

DirectX
12.0 (11_1)
OpenGL
4.6
OpenCL
1.2
Vulkan
1.1.101
Shader Model
5.1

Tahiti GPU Notes

Architecture Codename: Southern Islands
CLRX Version: GCN 1.0
Graphics/Compute: GFX6 (gfx600)
Display Core Engine: 6.0
Unified Video Decoder: 3.2
Video Compression Engine: 1.0

Exact Transistor Count: 4,312,711,873

Retail boards based on this design (1)

Name GPU Clock Boost Clock Memory Clock Other Changes
Dell HD 8950 850 MHz 925 MHz 1250 MHz