Report an Error

AMD Radeon HD 6450

Caicos
Graphics Processor
160
Cores
8
TMUs
4
ROPs
512 MB
Memory Size
GDDR5
Memory Type
64 bit
Bus Width
AMD Radeon HD 6450 Photo AMD Caicos Photo
The Radeon HD 6450 was an entry-level graphics card by AMD, launched in April 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 placed 512 MB GDDR5 memory on the card, which are connected using a 64-bit memory interface. The GPU is operating at a frequency of 625 MHz, memory is running at 800 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, 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
Process Size
40 nm
Transistors
370 million
Die Size
67 mm²

Graphics Card

Release Date
Apr 7th, 2011
Generation
Northern Islands
(HD 6400)
Production
End-of-life
Launch Price
55 USD
Bus Interface
PCIe 2.0 x16

Relative Performance

42%
54%
66%
85%
100%
Radeon HD 6450
106%
131%
170%
173%
188%
198%
202%
232%
247%
264%
273%
284%
293%
313%
330%
338%
348%
360%
411%
414%
422%
427%
428%
432%
436%
461%
485%
493%
511%
515%
520%
525%
527%
528%
538%
564%
575%
617%
628%
628%
655%
656%
680%
725%
748%
752%
766%
770%
796%
806%
812%
826%
864%
881%
895%
896%
898%
901%
973%
982%
1005%
1018%
1022%
1030%
1033%
1051%
1053%
1083%
1165%
1196%
1226%
1233%
1246%
1259%
1288%
1322%
1352%
1385%
1404%
1405%
1557%
1713%
1737%
1853%
1863%
1888%
1913%
1929%
1938%
1966%
1975%
1984%
2001%
2108%
2152%
2180%
2180%
2398%
2439%
2480%
2666%
2928%
3032%
3266%
3266%
3445%
4031%
4134%
4506%
5126%
Based on TPU review data: "Performance Summary" at 1920x1080

Clock Speeds

GPU Clock
625 MHz
Memory Clock
800 MHz
3200 MHz effective

Memory

Memory Size
512 MB
Memory Type
GDDR5
Memory Bus
64 bit
Bandwidth
25.60 GB/s

Render Config

Shading Units
160
TMUs
8
ROPs
4
Compute Units
2

Theoretical Performance

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

Board Design

Slot Width
Single-slot
Length
6.6 inches
168 mm
TDP
18 W
Outputs
1x DVI
1x HDMI
1x VGA
Power Connectors
None
Board Number
C264

Graphics Features

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

Caicos GPU Notes

Graphics/Compute: GFX4
Display Core Engine: 5.0
Unified Video Decoder: 3.1

Retail boards based on this design (17)

Name GPU Clock Memory Clock Other Changes
AMD Radeon HD 6450 750 MHz 900 MHz
AMD Radeon HD 6450 2 GB 650 MHz 580 MHz 2048 MB, DDR3
AREZ HD 6450 Silent Low Profile 1 GB 625 MHz 600 MHz 1024 MB, DDR3
ASUS HD 6450 Silent Low Profile 1 GB 625 MHz 600 MHz 1024 MB, GDDR3
ASUS HD 6450 Silent Low Profile 2 GB 650 MHz 600 MHz 2048 MB, GDDR3
GIGABYTE HD 6450 1 GB 625 MHz 550 MHz 1024 MB, DDR3, 7.204 inches/183 mm
GIGABYTE HD 6450 1 GB Rev. 2.0 625 MHz 500 MHz 1024 MB, DDR3, 6.61 inches/168 mm
PCYES HD 6450 Low Profile 2 GB 625 MHz 667 MHz 2048 MB, DDR3
Sapphire HD 6450 625 MHz 800 MHz 6.61 inches/168 mm, 1x DVI 1x DisplayPort 1x VGA
Sapphire HD 6450 1 GB 625 MHz 800 MHz 1024 MB, DDR3, 7.086 inches/180 mm, Dual-slot, 2x DVI 1x HDMI
Sapphire HD 6450 FleX 1 GB 625 MHz 800 MHz 1024 MB, DDR3, 7.086 inches/180 mm, Dual-slot, 2x DVI 1x HDMI
Sapphire HD 6450 Gold Edition 1 GB 625 MHz 667 MHz 1024 MB, DDR3
Sapphire HD 6450 Gold Edition 2 GB 625 MHz 667 MHz 2048 MB, DDR3
Sapphire HD 6450 HyperMemory 625 MHz 667 MHz 5.75 inches/146 mm, 1x DVI 1x VGA 1x S-Video
Sapphire HD 6450 OC 750 MHz 800 MHz 6.61 inches/168 mm, 1x DVI 1x DisplayPort 1x VGA
Sapphire HD 6450 Platinum Edition 625 MHz 800 MHz
XFX TSK HD 6450 X64 625 MHz 533 MHz 1024 MB, DDR3, 1x DVI