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AMD Radeon RX 550 640SP

Graphics Processor
Baffin
Cores
640
TMUs
40
ROPs
16
Memory Size
2 GB
Memory Type
GDDR5
Bus Width
128 bit
The Radeon RX 550 640SP is a graphics card by AMD, launched in October 2017. Built on the 14 nm process, and based on the Baffin graphics processor, in its Baffin LE variant, the card supports DirectX 12.0. The Baffin graphics processor is an average sized chip with a die area of 123 mm² and 3,000 million transistors. Unlike the fully unlocked Radeon RX 460 1024SP, which uses the same GPU but has all 1024 shaders enabled, AMD has disabled some shading units on the Radeon RX 550 640SP to reach the product's target shader count. It features 640 shading units, 40 texture mapping units and 16 ROPs. AMD has placed 2,048 MB GDDR5 memory on the card, which are connected using a 128-bit memory interface. The GPU is operating at a frequency of 1019 MHz, which can be boosted up to 1071 MHz, memory is running at 1500 MHz.
Being a dual-slot card, the AMD Radeon RX 550 640SP does not require any additional power connector, its power draw is rated at 60 W maximum. Display outputs include: 1x DVI, 1x HDMI, 1x DisplayPort. Radeon RX 550 640SP is connected to the rest of the system using a PCI-Express 3.0 x8 interface. The card measures 145 mm in length, and features a dual-slot cooling solution.

Graphics Processor

GPU Name
Baffin
GPU Variant
Baffin LE
Architecture
GCN 4.0
Foundry
TSMC
Process Size
14 nm
Transistors
3,000 million
Die Size
123 mm²

Graphics Card

Release Date
Oct 13th, 2017
Generation
Polaris
(RX 500)
Production
Active
Bus Interface
PCIe 3.0 x8

Relative Performance

6%
GeForce 210
7%
GeForce 9400 GT
9%
Radeon HD 4550
11%
Radeon HD 5450
13%
Radeon HD 6450
14%
GeForce GT 520
18%
GeForce GT 220
23%
GeForce GT 430
23%
Radeon HD 5570
25%
Radeon HD 4670
27%
GeForce GT 440
27%
GeForce GT 240
31%
GeForce 9600 GT
33%
Radeon HD 5670
36%
GeForce GT 640
37%
GeForce 9800 GT
38%
Radeon HD 6670
40%
Radeon HD 4830
42%
Radeon HD 4770
45%
Radeon HD 4850
46%
GeForce GTS 250
47%
GeForce GTS 450
49%
Radeon HD 5750
55%
Radeon HD 7750
56%
Radeon HD 5770
57%
GeForce GTX 260
58%
Radeon HD 4870
58%
Radeon Vega 8
58%
GeForce GTX 550 Ti
59%
GeForce GTX 650
62%
Radeon HD 5830
65%
Radeon HD 6790
67%
Radeon HD 4890
69%
GeForce GTX 460
70%
Radeon RX Vega 11
70%
GeForce GT 1030
71%
GeForce GTX 275
71%
Radeon HD 7770 GHz Edition
71%
GeForce GTX 280
73%
GeForce GTX 465
76%
Radeon HD 6850
78%
GeForce GTX 285
83%
Radeon HD 5850
85%
GeForce GTX 650 Ti
85%
Radeon HD 7790
88%
Radeon RX 550
89%
GeForce GTX 470
92%
Radeon HD 6870
98%
Radeon HD 5870
100%
Radeon RX 550 640SP
101%
GeForce GTX 560 Ti
102%
Radeon HD 4870 X2
103%
GeForce GTX 750 Ti
104%
Radeon HD 6950
108%
GeForce GTX 295
109%
GeForce GTX 650 Ti Boost
110%
Radeon HD 7850
111%
GeForce GTX 480
117%
Radeon HD 6970
119%
Radeon R7 265
121%
Radeon R7 370
121%
Radeon RX 560
121%
GeForce GTX 660
122%
GeForce GTX 570
131%
GeForce GTX 950
133%
Radeon HD 7870 GHz Edition
136%
Radeon R9 270X
137%
GeForce GTX 660 Ti
138%
GeForce GTX 580
139%
GeForce GTX 1050
139%
Radeon HD 7950
142%
Radeon RX 460
142%
Radeon HD 5970
146%
GeForce GTX 760
157%
GeForce GTX 670
161%
GeForce GTX 960
166%
Radeon R9 380
167%
Radeon R9 285
168%
Radeon HD 7970
170%
GeForce GTX 680
174%
GeForce GTX 1050 Ti
178%
GeForce GTX 770
183%
Radeon HD 6990
187%
Radeon R9 280X
190%
GeForce GTX 590
190%
Radeon HD 7970 GHz Edition
210%
GeForce GTX 780
231%
Radeon RX 470
234%
Radeon R9 290
250%
Radeon R9 390
251%
Radeon R9 290X
255%
GeForce GTX 970
258%
GeForce GTX TITAN
260%
Radeon RX 570
262%
GeForce GTX 780 Ti
265%
Radeon R9 390X
267%
Radeon HD 7990
268%
Radeon RX 480
270%
GeForce GTX 690
285%
Radeon RX 580
291%
GeForce GTX 980
294%
GeForce GTX 1060 6 GB
294%
Radeon R9 FURY
296%
Radeon RX 590
324%
Radeon R9 295X2
329%
Radeon R9 FURY X
335%
GeForce GTX 980 Ti
360%
GeForce GTX TITAN X
378%
GeForce GTX 1660 Ti
380%
GeForce GTX 1070
396%
Radeon RX Vega 56
430%
GeForce GTX 1070 Ti
441%
Radeon RX Vega 64
441%
GeForce RTX 2060
452%
GeForce GTX 1080
519%
Radeon VII
519%
GeForce RTX 2070
544%
TITAN X Pascal
558%
GeForce GTX 1080 Ti
603%
GeForce RTX 2080
698%
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
1019 MHz
Boost Clock
1071 MHz
Memory Clock
1500 MHz
6000 MHz effective

Memory

Memory Size
2 GB
Memory Type
GDDR5
Memory Bus
128 bit
Bandwidth
96.00 GB/s

Render Config

Shading Units
640
TMUs
40
ROPs
16
Compute Units
10
L1 Cache
16 KB (per CU)
L2 Cache
1024 KB

Theoretical Performance

Pixel Rate
17.14 GPixel/s
Texture Rate
42.84 GTexel/s
FP16 (half) performance
1,371 GFLOPS (1:1)
FP32 (float) performance
1,371 GFLOPS
FP64 (double) performance
85.68 GFLOPS (1:16)

Board Design

Slot Width
Dual-slot
Length
5.7 inches
145 mm
TDP
60 W
Outputs
1x DVI
1x HDMI
1x DisplayPort
Power Connectors
None
Board Number
D090-21

Graphics Features

DirectX
12.0 (12_0)
OpenGL
4.6
OpenCL
2.0
Vulkan
1.1.101
Shader Model
6.0

Baffin GPU Notes

Architecture Codename: Arctic Islands
Codename: Polaris 11 (Kauai/Maui / RacerX)
CLRX Version: GCN 1.2
Graphics/Compute: GFX8 (gfx803)
Display Core Engine: 11.2
Unified Video Decoder: 6.3
Video Compression Engine: 3.4

Retail boards based on this design (6)

Name GPU Clock Boost Clock Memory Clock Other Changes
AREZ PHOENIX RX 550 1019 MHz 1071 MHz 1500 MHz 7.6 inches/193 mm
AREZ PHOENIX RX 550 M7 4 GB 1019 MHz 1071 MHz 1750 MHz 4 GB, 7.6 inches/193 mm
ASUS PHOENIX RX 550 4 GB 1019 MHz 1071 MHz 1500 MHz 4 GB, 7.6 inches/193 mm
ASUS PHOENIX RX 550 M7 4 GB 1019 MHz 1071 MHz 1750 MHz 4 GB, 7.6 inches/193 mm
Sapphire PULSE RX 550 1019 MHz 1071 MHz 1500 MHz 6.22 inches/158 mm, Single-slot
Sapphire PULSE RX 550 4 GB 1019 MHz 1071 MHz 1500 MHz 4 GB, 6.22 inches/158 mm, Single-slot