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ASRock Radeon RX 6600 Challenger D 8GB

ASRockGraphics card

Radeon RX 6600 Challenger D 8GB

Released October 2021.2Press releaseasrock.com/news/index.aspRead 23 October 2026Press release dated 2021-10-13: ASRock launched its Challenger series cards based on the Radeon RX 6600, including the RX 6600 Challenger D 8GB, on the day AMD introduced the GPU. Read in Chrome. Last checked 23 October 2026.

GPU
AMD Radeon RX 6600
VRAM
8GB
Length
269mm
Board power
132W

66 of 100 fields known.

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At a glance

Ports

  • HDMI 2.1
  • 3 DisplayPort 1.4

All specs

SourceCalculated

General

Series
Challenger2Press releaseasrock.com/news/index.aspRead 23 October 2026The card is in ASRock's Challenger series.
Model numbers
RX6600 CLD 8G, 90-GA2RZZ-00UANF1Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Model name RX6600 CLD 8G under the product title.7Reviewocinside.de/review/asrock_rx_6600_challenger_d_8g/2Read 23 October 2026Technical data: model number RX 6600 CLD 8G - 90-GA2RZZ-00UANF. The review says CLD is only the short model number of the Challenger D.8Retailer pageamazon.com/dp/B09J8VCFWNRead 23 October 2026Model Number and Mfr Part Number 90-GA2RZZ-00UANF.9Retailer pagemarket.managerit.fi/asrock-radeon-rx6600-challenger-d/cat-p/c36132/p1002352731Read 23 October 2026Tuotekoodi RX6600 CLD 8G. The page copies the ASRock specification tab.
GTIN / EAN
47104839357499Retailer pagemarket.managerit.fi/asrock-radeon-rx6600-challenger-d/cat-p/c36132/p1002352731Read 23 October 2026EAN 4710483935749 with product code RX6600 CLD 8G.
Announced
Not available
Status
Available1Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Footnote on the Specification tab: this product is still in production. ASRock also says the model may not be sold worldwide.8Retailer pageamazon.com/dp/B09J8VCFWNRead 23 October 2026Amazon US page on 2026-10-23: 1,032 ratings at 4.7 stars, in stock, sold by Ometra LLC and shipped by Amazon.
Predecessor
Not available
Successor
Not available
Launch price (US)
Not available
Launch price (EU)
Not available
Markets
Not available
Colours
Not available
GPU
AMD Radeon RX 66001Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Graphics Engine AMD Radeon RX 6600.
GPU brand
AMD3Maker product pageamd.com/en/products/graphics/desktops/radeon/6000-series/amd-radeon-rx-6600.htmlRead 23 October 2026AMD Radeon RX 6600 product page.
Reference launch price (US)
$3294Press releaseamd.com/en/newsroom/press-releases/2021-10-13-amd-radeon-rx-6600-graphics-card-delivers-incredib.htmlRead 23 October 2026Dated 2021-10-13: AMD board partners including ASRock sell the RX 6600 from today at an SEP of $329 USD. The price excludes tax.6Reviewtomshardware.com/reviews/amd-radeon-rx-6600-review-xfxRead 23 October 2026Specifications table: launch price $329, launch date Oct-21.

GPU

GPU architecture
RDNA 21Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Key Specification: AMD RDNA 2 Architecture.
GPU die
Navi 236Reviewtomshardware.com/reviews/amd-radeon-rx-6600-review-xfxRead 23 October 2026Specifications table, RX 6600 column: architecture Navi 23.7Reviewocinside.de/review/asrock_rx_6600_challenger_d_8g/2Read 23 October 2026Technical data: Navi 23 XT, RDNA 2.
Process
TSMC N76Reviewtomshardware.com/reviews/amd-radeon-rx-6600-review-xfxRead 23 October 2026Specifications table: Process Technology TSMC N7. AMD names only 7nm.
Transistors
11.1billion3Maker product pageamd.com/en/products/graphics/desktops/radeon/6000-series/amd-radeon-rx-6600.htmlRead 23 October 2026Transistor Count 11.1 B.6Reviewtomshardware.com/reviews/amd-radeon-rx-6600-review-xfxRead 23 October 2026Specifications table: 11.1 billion.
Die size
237mm²6Reviewtomshardware.com/reviews/amd-radeon-rx-6600-review-xfxRead 23 October 2026Specifications table: die size 237 mm2.
Compute units
283Maker product pageamd.com/en/products/graphics/desktops/radeon/6000-series/amd-radeon-rx-6600.htmlRead 23 October 2026Compute Units 28.6Reviewtomshardware.com/reviews/amd-radeon-rx-6600-review-xfxRead 23 October 2026Specifications table: 28 CUs.
Shader cores
1,7921Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Stream Processors 1792.3Maker product pageamd.com/en/products/graphics/desktops/radeon/6000-series/amd-radeon-rx-6600.htmlRead 23 October 2026Stream Processors 1792.6Reviewtomshardware.com/reviews/amd-radeon-rx-6600-review-xfxRead 23 October 2026Specifications table: GPU cores 1792.
Ray tracing cores
283Maker product pageamd.com/en/products/graphics/desktops/radeon/6000-series/amd-radeon-rx-6600.htmlRead 23 October 2026Ray Accelerators 28.6Reviewtomshardware.com/reviews/amd-radeon-rx-6600-review-xfxRead 23 October 2026Specifications table: 28 Ray Accelerators.
AI cores
Not available
ROPs
643Maker product pageamd.com/en/products/graphics/desktops/radeon/6000-series/amd-radeon-rx-6600.htmlRead 23 October 2026ROPs 64.6Reviewtomshardware.com/reviews/amd-radeon-rx-6600-review-xfxRead 23 October 2026Specifications table: 64 ROPs.
L2 cache
Not available
Infinity Cache (L3)
32MB3Maker product pageamd.com/en/products/graphics/desktops/radeon/6000-series/amd-radeon-rx-6600.htmlRead 23 October 2026AMD Infinity Cache Technology 32 MB.6Reviewtomshardware.com/reviews/amd-radeon-rx-6600-review-xfxRead 23 October 2026Specifications table: Infinity Cache 32 MB.
FP32 compute (claimed)
8.93TFLOPS3Maker product pageamd.com/en/products/graphics/desktops/radeon/6000-series/amd-radeon-rx-6600.htmlRead 23 October 2026Peak Single Precision (FP32 Vector) Performance 8.93 TFLOPs.
AI performance (claimed)
Not available

Clocks

Base clock
1,626MHz1Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Engine Clock: Base Clock 1626 MHz.
Game clock
2,044MHz1Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Engine Clock: Game Clock up to 2044 MHz.
Boost clock
2,491MHz1Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Engine Clock: Boost Clock up to 2491 MHz. The card runs at AMD's reference clocks. ASRock lists no second OC mode. The page footnote calls the boost clock the maximum frequency on a bursty workload.7Reviewocinside.de/review/asrock_rx_6600_challenger_d_8g/2Read 23 October 2026Technical data: boost 2044-2491 MHz. Default mode clocks at about 2596 MHz in the review's benchmarks, which is a measured value and is not stored.
Boost clock in OC mode
Not available
Reference boost clock
2,491MHz3Maker product pageamd.com/en/products/graphics/desktops/radeon/6000-series/amd-radeon-rx-6600.htmlRead 23 October 2026Boost Frequency up to 2491 MHz, the maximum burst clock. Game Frequency 2044 MHz.

Memory

VRAM
8GB1Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Memory 8GB GDDR6.3Maker product pageamd.com/en/products/graphics/desktops/radeon/6000-series/amd-radeon-rx-6600.htmlRead 23 October 2026Max Memory Size 8 GB.
VRAM type
GDDR61Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Memory 8GB GDDR6.3Maker product pageamd.com/en/products/graphics/desktops/radeon/6000-series/amd-radeon-rx-6600.htmlRead 23 October 2026Memory Type GDDR6.
Memory bus width
128bits1Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Memory Interface 128-bit.3Maker product pageamd.com/en/products/graphics/desktops/radeon/6000-series/amd-radeon-rx-6600.htmlRead 23 October 2026Memory Interface 128-bit.
Memory speed
14Gbps1Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Memory Speed 14 Gbps.3Maker product pageamd.com/en/products/graphics/desktops/radeon/6000-series/amd-radeon-rx-6600.htmlRead 23 October 2026Memory Speed up to 14 Gbps.
Memory bandwidth
224GB/s3Maker product pageamd.com/en/products/graphics/desktops/radeon/6000-series/amd-radeon-rx-6600.htmlRead 23 October 2026Memory Bandwidth up to 224 GB/s.6Reviewtomshardware.com/reviews/amd-radeon-rx-6600-review-xfxRead 23 October 2026Specifications table: 224 GB/s.

Connectivity

PCIe generation
41Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Bus Standard PCI Express 4.0 x8.
PCIe lanes
81Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Bus Standard PCI Express 4.0 x8.6Reviewtomshardware.com/reviews/amd-radeon-rx-6600-review-xfxRead 23 October 2026Specifications table: PCIe slot interface x8 Gen4.10Press articleguru3d.com/story/asrock-amd-radeon-rx-6600-challenger-d-8gb-with-dual-fan-coolerRead 23 October 2026Bus interface PCI-Express 4.0 (x8/x16): the card has an x16 connector and uses 8 lanes.
Display outputs
TypeVersionCountMax bandwidth (Gbps)
HDMI2.11Not available
DisplayPort1.4332.4
Source1Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Interface: 1 x HDMI 2.1 VRR and 3 x DisplayPort 1.4 with DSC. ASRock writes the DisplayPort version as 1.4, while AMD writes 1.4a. The card maker's version is stored. The 32.4 Gbps is the HBR3 link rate of DisplayPort 1.4. No HDMI bandwidth is stated.
Display outputs in total
4
HDMI ports
1
DisplayPort ports
3
Highest HDMI version
2.1
Highest DisplayPort version
1.4
Fastest DisplayPort link
32.4Gbps
Max displays
41Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Multi-view 4.
Max output resolution
7680 × 4320px1Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Resolution: Digital Max Resolution 7680 x 4320. ASRock and AMD give no refresh rate, so only the resolution is stored.
HDCP version
2.37Reviewocinside.de/review/asrock_rx_6600_challenger_d_8g/2Read 23 October 2026Technical data: HDCP Support 2.3.

Video engine

Video encoders
15Maker product pageamd.com/en/products/graphics/radeon-for-creators/video-editing.htmlRead 23 October 2026Supported video formats table, RX 6600 row: 1 VCN. A VCN is one video engine that encodes and decodes, so the count is stored in both fields as for Intel cards. The field help says AMD publishes no counts, but this AMD page gives one.
Video decoders
15Maker product pageamd.com/en/products/graphics/radeon-for-creators/video-editing.htmlRead 23 October 2026Same row: 1 VCN.
Hardware video encode
H.264, H.265 (HEVC)3Maker product pageamd.com/en/products/graphics/desktops/radeon/6000-series/amd-radeon-rx-6600.htmlRead 23 October 20264K H264 Encode: Yes. H265/HEVC Encode: Yes. AV1 encode is not listed.5Maker product pageamd.com/en/products/graphics/radeon-for-creators/video-editing.htmlRead 23 October 2026RX 6600 row: H.264 and HEVC E/D, which means encode and decode. VP9 and AV1 are decode only.
Hardware video decode
H.264, H.265 (HEVC), VP9, AV13Maker product pageamd.com/en/products/graphics/desktops/radeon/6000-series/amd-radeon-rx-6600.htmlRead 23 October 20264K H264 Decode, H265/HEVC Decode and AV1 Decode: Yes. VP9 decode comes from AMD's video editing page.5Maker product pageamd.com/en/products/graphics/radeon-for-creators/video-editing.htmlRead 23 October 2026RX 6600 row: H.264 E/D, HEVC E/D, VP9 D at 4:2:0 10 bit and AV1 D at 4:2:0 8 and 10 bit.

Graphics features

DirectX
12 Ultimate1Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026DirectX 12 Ultimate.
Vulkan
1.413Certification listkhronos.org/conformance/adopters/conformant-products/vulkanRead 23 October 2026AMD submission 895, dated 2025-01-30, lists the Radeon RX 6600 among its Vulkan 1.4 conformant products.
OpenGL
4.61Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026OpenGL 4.6.
Upscaling technologies
FSR3Maker product pageamd.com/en/products/graphics/desktops/radeon/6000-series/amd-radeon-rx-6600.htmlRead 23 October 2026Supported Technologies list AMD FSR without a version, so the name is stored without one. AMD's FSR page says FSR upscaling with ML technologies is available on RX 6000 cards.
Frame generation
FSR Frame Generation, AMD Fluid Motion Frames 211Maker product pageamd.com/en/products/software/adrenalin/afmf.htmlRead 23 October 2026AFMF supports Radeon RX 6000 and 7000 Series desktop cards, and AFMF 2.1 can be enabled on RX 6000 series and newer. Written as Fluid Motion Frames 2 like the other AMD cards.12Maker product pageamd.com/en/products/graphics/technologies/fidelityfx/super-resolution.htmlRead 23 October 2026Hardware compatibility: AMD FSR 3 frame generation runs on Radeon RX 5000 Series graphics and above.

Power

Board power
Not available
Reference board power
132W3Maker product pageamd.com/en/products/graphics/desktops/radeon/6000-series/amd-radeon-rx-6600.htmlRead 23 October 2026Typical Board Power (Desktop) 132 W. Minimum PSU recommendation 450 W.6Reviewtomshardware.com/reviews/amd-radeon-rx-6600-review-xfxRead 23 October 2026Specifications table: TBP 132 W.
PSU wattage (card maker)
500W1Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Recommended PSU 500W. AMD's minimum PSU recommendation for the GPU is 450 W.
Power connector
1 x 8-pin PCIe1Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Power Connector 1 x 8-pin.3Maker product pageamd.com/en/products/graphics/desktops/radeon/6000-series/amd-radeon-rx-6600.htmlRead 23 October 2026Additional Power Connector 1x8-Pin.

Cooling

Cooler type
Open air1Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Key Features: Dual Fan Design, Striped Axial Fan, Ultra-fit Heatpipe, Stylish Metal Backplate. The fans blow onto a heatsink.
Fans
21Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Key Features: Dual Fan Design, Striped Axial Fan.7Reviewocinside.de/review/asrock_rx_6600_challenger_d_8g/2Read 23 October 2026Technical data: 2 x 100 mm fans.
Radiator size
Not available
Fan stop at low load
Yes1Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Key Features: 0dB Silent Cooling. No temperature threshold is stated.7Reviewocinside.de/review/asrock_rx_6600_challenger_d_8g/2Read 23 October 2026Page 3: in 2D mode the fans stand still without GPU load.
Dual BIOS
Not available

Dimensions and weight

Length
269mm1Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Dimensions 269 x 132 x 41 mm. ASRock names no axes and does not say whether the bracket is included. Length is the longest side and thickness the shortest.7Reviewocinside.de/review/asrock_rx_6600_challenger_d_8g/2Read 23 October 2026Technical data: 269 x 132 x 41 mm (L x W x H).
Height
132mm1Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Second value of 269 x 132 x 41 mm.
Thickness
41mm1Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Third value of 269 x 132 x 41 mm.
Slot width
2slots7Reviewocinside.de/review/asrock_rx_6600_challenger_d_8g/2Read 23 October 2026Technical data: 2-slot cooler with 2 x 100 mm fans and 0dB Silent Cooling. ASRock states no slot figure. Review of 2022-06.
Low profile
Not available
NVIDIA SFF-Ready
Not available
Weight
627g(1.4 lb)1Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Net Weight 627 g.10Press articleguru3d.com/story/asrock-amd-radeon-rx-6600-challenger-d-8gb-with-dual-fan-coolerRead 23 October 2026The article gives 627 g (it prints milligrams by mistake), as ASRock does.
Package weight
Not available

Lighting and software

RGB lighting
No7Reviewocinside.de/review/asrock_rx_6600_challenger_d_8g/2Read 23 October 2026Page 3: the review case has ARGB lighting, and it is hardly noticeable that the Challenger D has no RGB lighting.
Lighting sync
Not available
Software
ASRock Tweak7Reviewocinside.de/review/asrock_rx_6600_challenger_d_8g/2Read 23 October 2026Page 3: ASRock OC Tweaker, also called ASRock Tweak, version 2.0.51, with OC, Default, Silent and User modes.

Measured performance

We could not find any of these 6 fields. Show them
GPU clock while gaming (measured)
Not available
3DMark Time Spy graphics
Not available
3DMark Steel Nomad
Not available
3DMark Port Royal
Not available
3DMark Speed Way
Not available
Game frame rates
Not available

Measured noise and temperature

We could not find any of these 5 fields. Show them
Fan noise per load
Not available
Fan noise while gaming
Not available
GPU temperature while gaming
Not available
Hot spot temperature while gaming
Not available
Memory temperature while gaming
Not available

Measured power

We could not find any of these 2 fields. Show them
Card power at idle (measured)
Not available
GPU power while gaming (measured)
Not available

In the box

In the box
1 x Quick Installation Guide1Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026Accessories: 1 x Quick Installation Guide.8Retailer pageamazon.com/dp/B09J8VCFWNRead 23 October 2026What's in the box: 1 x Quick Installation Guide.
Power adapter cable included
No1Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026The accessories list has only the quick installation guide, and the card has an 8-pin input.
Support bracket included
No1Maker product pageasrock.com/Graphics-Card/AMD/Radeon%20RX%206600%20Challenger%20D%208GB/index.aspRead 23 October 2026The accessories list has only the quick installation guide.

Warranty

Manufacturer warranty (source market)
2years8Retailer pageamazon.com/dp/B09J8VCFWNRead 23 October 2026Warranty Description 2 Years Manufacturer Brand New, 90 Days Refurbished. The value is for the US, sold by a third-party seller. ASRock's Challenger RX 9070 cards also list 2 years on Amazon US. Item weight 499 g on the listing does not match ASRock's 627 g and is not stored.

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Sources

We read 13 sources for this graphics card. The numbers match the markers in the sheet.

  1. Read 23 October 2026Backs 32 fields
  2. Read 23 October 2026Backs 2 fields
  3. Read 23 October 2026Backs 19 fields
  4. Read 23 October 2026Backs 2 fields
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  6. Read 23 October 2026Backs 13 fields
  7. Read 23 October 2026Backs 10 fields
  8. Read 23 October 2026Backs 4 fields
  9. Read 23 October 2026Backs 2 fields
  10. Read 23 October 2026Backs 3 fields
  11. Read 23 October 2026Backs 1 field
  12. Read 23 October 2026Backs 1 field
  13. Read 23 October 2026Backs 1 field

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