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AMD Radeon HD 6450

Graphics Processor
Caicos
Cores
160
TMUs
8
ROPs
4
Memory Size
512 MB
Memory Type
GDDR3
Bus Width
64 bit
GPU Chip
GPU
PCB Front
PCB Front
PCB Back
PCB Back
The Radeon HD 6450 was an entry-level graphics card by AMD, launched on April 7th, 2011. Built on the 40 nm process, and based on the Caicos graphics processor, in its Caicos PRO variant, the card supports DirectX 11.2. The Caicos graphics processor is a relatively small chip with a die area of only 67 mm² and 370 million transistors. It features 160 shading units, 8 texture mapping units, and 4 ROPs. AMD has paired 512 MB GDDR3 memory with the Radeon HD 6450, which are connected using a 64-bit memory interface. The GPU is operating at a frequency of 625 MHz, memory is running at 500 MHz.
Being a single-slot card, the AMD Radeon HD 6450 does not require any additional power connector, its power draw is rated at 18 W maximum. Display outputs include: 1x DVI, 1x HDMI 1.3a, 1x VGA. Radeon HD 6450 is connected to the rest of the system using a PCI-Express 2.0 x16 interface. The card measures 168 mm in length, and features a single-slot cooling solution. Its price at launch was 55 US Dollars.

Graphics Processor

GPU Name
Caicos
GPU Variant
Caicos PRO
Architecture
TeraScale 2
Foundry
TSMC
Process Size
40 nm
Transistors
370 million
Density
5.5M / mm²
Die Size
67 mm²
Chip Package
FCBGA-631

Graphics Card

Release Date
Apr 7th, 2011
Generation
Northern Islands
(HD 6400)
Predecessor
Evergreen
Successor
Southern Islands
Production
End-of-life
Launch Price
55 USD
Bus Interface
PCIe 2.0 x16
Reviews
14 in our database

Relative Performance

GeForce 210
42%
GeForce 9400 GT
54%
Radeon HD 4550
66%
Radeon HD 5450
85%
Radeon HD 6450
100%
GeForce GT 520
106%
GeForce GT 220
131%
GeForce GT 430
171%
Radeon HD 5570
173%
Radeon HD 4670
188%
GeForce GT 440
198%
GeForce GT 240
202%
GeForce 9600 GT
232%
Radeon HD 5670
247%
GeForce GT 640
265%
GeForce 9800 GT
274%
Radeon HD 6670
285%
Radeon HD 4830
294%
Radeon HD 4770
314%
Radeon HD 4850
331%
GeForce GTS 250
338%
GeForce GTS 450
348%
Radeon HD 5750
360%
Radeon HD 7750
412%
Radeon HD 5770
415%
GeForce GTX 260
422%
Radeon HD 4870
427%
Radeon Vega 8
428%
GeForce GTX 550 Ti
433%
GeForce GTX 650
436%
Radeon HD 5830
462%
Radeon HD 6790
486%
Radeon HD 4890
494%
GeForce GTX 460
512%
Radeon RX Vega 11
516%
GeForce GT 1030
521%
GeForce GTX 275
526%
Radeon HD 7770 GHz Edition
527%
GeForce GTX 280
529%
GeForce GTX 465
539%
Radeon HD 6850
565%
GeForce GTX 285
576%
Radeon HD 5850
617%
GeForce GTX 650 Ti
629%
Radeon HD 7790
629%
Radeon RX 550
655%
GeForce GTX 470
657%
Radeon HD 6870
681%
Radeon HD 5870
726%
GeForce GTX 560 Ti
749%
Radeon HD 4870 X2
753%
GeForce GTX 750 Ti
767%
Radeon HD 6950
770%
GeForce GTX 295
798%
GeForce GTX 650 Ti Boost
807%
Radeon HD 7850
813%
GeForce GTX 480
827%
Radeon HD 6970
866%
Radeon R7 265
882%
Radeon R7 370
897%
Radeon RX 460
897%
GeForce GTX 660
900%
GeForce GTX 570
902%
Radeon RX 560
917%
GeForce GTX 950
974%
Radeon HD 7870 GHz Edition
983%
Radeon R9 270X
1007%
GeForce GTX 660 Ti
1019%
GeForce GTX 580
1024%
GeForce GTX 1050
1032%
Radeon HD 7950
1034%
GeForce GTX 1630
1054%
Radeon HD 5970
1054%
GeForce GTX 760
1084%
GeForce GTX 670
1167%
GeForce GTX 960
1197%
Radeon R9 380
1228%
Radeon R9 285
1235%
Radeon HD 7970
1248%
GeForce GTX 680
1261%
GeForce GTX 1050 Ti
1290%
GeForce GTX 770
1324%
Radeon HD 6990
1354%
Radeon R9 280X
1387%
GeForce GTX 590
1406%
Radeon HD 7970 GHz Edition
1407%
GeForce GTX 780
1559%
Arc A380
1561%
Radeon RX 6400
1583%
GeForce GTX 1650
1615%
Radeon RX 470
1716%
Radeon R9 290
1739%
Radeon RX 570
1833%
Radeon R9 390
1855%
Radeon R9 290X
1866%
GeForce GTX 970
1891%
GeForce GTX TITAN
1916%
GeForce GTX 780 Ti
1941%
Radeon R9 390X
1969%
Radeon HD 7990
1978%
Radeon RX 480
1987%
GeForce GTX 690
2004%
GeForce GTX 1060 6 GB
2058%
Radeon RX 5500 OEM
2086%
Radeon RX 580
2112%
Radeon RX 5500 XT
2128%
Radeon RX 6500 XT
2146%
GeForce GTX 980
2155%
GeForce GTX 1650 SUPER
2174%
Radeon R9 FURY
2183%
Radeon RX 590
2280%
Radeon R9 295X2
2401%
GeForce GTX 1660
2415%
Radeon R9 FURY X
2443%
GeForce RTX 3050 8 GB
2471%
GeForce GTX 980 Ti
2484%
GeForce GTX TITAN X
2549%
GeForce GTX 1660 SUPER
2625%
GeForce GTX 1070
2772%
GeForce GTX 1660 Ti
2772%
Radeon RX Vega 56
2951%
GeForce GTX 1070 Ti
3130%
Arc A580
3146%
Radeon RX 5600 XT
3177%
Radeon RX Vega 64
3219%
GeForce GTX 1080
3264%
GeForce RTX 2060
3264%
Radeon RX 5700
3398%
Arc A750
3481%
Radeon RX 5700 XT
3544%
Radeon RX 6600
3547%
Radeon RX 6600 XT
3645%
GeForce RTX 2060 SUPER
3666%
GeForce RTX 3060 12 GB
3704%
GeForce RTX 2070
3714%
Arc A770
3854%
Radeon RX 7600
3891%
Radeon VII
3935%
TITAN X Pascal
4037%
GeForce GTX 1080 Ti
4158%
GeForce RTX 2070 SUPER
4203%
GeForce RTX 4060
4323%
Radeon RX 7600 XT
4409%
GeForce RTX 5060
4416%
Radeon RX 6650 XT
4421%
Arc B580
4451%
GeForce RTX 2080
4521%
GeForce RTX 4060 Ti 8 GB
4582%
GeForce RTX 3060 Ti
4669%
GeForce RTX 2080 SUPER
4740%
GeForce RTX 5060 Ti 8 GB
4928%
Radeon RX 6700 XT
5026%
Radeon RX 6750 XT
5335%
GeForce RTX 3070
5408%
GeForce RTX 2080 Ti
5433%
GeForce RTX 3070 Ti
5667%
Radeon RX 9060 XT 16 GB
5679%
Radeon RX 7700 XT
5879%
GeForce RTX 5060 Ti 16 GB
6093%
Radeon RX 6800
6129%
Radeon RX 6800 XT
6911%
GeForce RTX 4070
6945%
Radeon RX 7800 XT
7325%
Radeon RX 6900 XT
7393%
GeForce RTX 3080
7496%
Radeon RX 6950 XT
7802%
Radeon RX 7900 GRE
7932%
GeForce RTX 4070 SUPER
8056%
GeForce RTX 3080 Ti
8322%
GeForce RTX 3090
8434%
GeForce RTX 5070
8559%
GeForce RTX 4070 Ti
8646%
Radeon RX 9070
9436%
GeForce RTX 4070 Ti SUPER
9446%
GeForce RTX 3090 Ti
9455%
Radeon RX 7900 XT
9631%
Radeon RX 9070 XT
10533%
GeForce RTX 5070 Ti
11024%
Radeon RX 7900 XTX
11184%
GeForce RTX 4080
11191%
GeForce RTX 4080 SUPER
11287%
GeForce RTX 5080
12641%
GeForce RTX 4090
14632%
GeForce RTX 5090
19183%
Based on TPU review data: "Performance Summary" at 1920x1080, 4K for 2080 Ti and faster.

Clock Speeds

GPU Clock
625 MHz
Memory Clock
500 MHz
1000 Mbps effective

Memory

Memory Size
512 MB
Memory Type
GDDR3
Memory Bus
64 bit
Bandwidth
8.000 GB/s

Render Config

Shading Units
160
TMUs
8
ROPs
4
Compute Units
2
L1 Cache
8 KB (per CU)
L2 Cache
128 KB

Theoretical Performance

Pixel Rate
2.500 GPixel/s
Texture Rate
5.000 GTexel/s
FP32 (float)
200.0 GFLOPS

Board Design

Slot Width
Single-slot
Length
168 mm
6.6 inches
TDP
18 W
Suggested PSU
200 W
Outputs
1x DVI
1x HDMI 1.3a
1x VGA
Power Connectors
None
Board Number
109-C26037-00A

Graphics Features

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

Caicos GPU Notes

Generation: Northern Islands
Mobile Variant: Seymour
Graphics/Compute: GFX4
Display Core Engine: 5.0
Unified Video Decoder: 3.1

Latest Drivers:
Windows XP / 8:
Catalyst Software Suite 14.4

Windows Vista :
Catalyst Software Suite 13.12

Windows 7 / 8.1 / 10:
Catalyst Software Suite 15.7.1 / 16.2.1 Beta

Retail boards based on this design (24)

Name GPU Clock Memory Clock Other Changes
750 MHz 900 MHz GDDR5
650 MHz 533 MHz 2 GB, DDR3
625 MHz 600 MHz 1024 MB, DDR3
625 MHz 600 MHz 1024 MB
650 MHz 600 MHz 2 GB
625 MHz 550 MHz 1024 MB, DDR3, 183 mm/7.2 inches
625 MHz 500 MHz 1024 MB, DDR3
625 MHz 500 MHz DDR3, 180 mm/7.1 inches
625 MHz 500 MHz 1024 MB, DDR3, 180 mm/7.1 inches
625 MHz 500 MHz 1024 MB, DDR3, 180 mm/7.1 inches
625 MHz 500 MHz 2 GB, DDR3, 180 mm/7.1 inches
625 MHz 500 MHz 2 GB, DDR3, 180 mm/7.1 inches
625 MHz 500 MHz 1024 MB, DDR3, 180 mm/7.1 inches
625 MHz 500 MHz 2 GB, DDR3, 180 mm/7.1 inches
625 MHz 667 MHz 2 GB, DDR3
625 MHz 800 MHz 1024 MB, DDR3, 180 mm/7.1 inches, Dual-slot, 2x DVI 1x HDMI
625 MHz 800 MHz 1024 MB, DDR3, 180 mm/7.1 inches, Dual-slot, 2x DVI 1x HDMI
625 MHz 800 MHz GDDR5, 1x DVI 1x DisplayPort 1x VGA
625 MHz 667 MHz 1024 MB, DDR3
625 MHz 667 MHz 2 GB, DDR3
625 MHz 667 MHz 146 mm/5.7 inches, 1x DVI 1x VGA 1x S-Video
750 MHz 800 MHz GDDR5, 1x DVI 1x DisplayPort 1x VGA
625 MHz 800 MHz GDDR5
625 MHz 533 MHz 1024 MB, DDR3, 1x DVI
Jun 30th, 2025 18:43 CDT change timezone

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