AMD Radeon RX 6600 XT
AMD graphics card specifications and benchmark scores
Ray TracingAt a Glance
AMDAMD Radeon RX 6600 XT Specifications
Radeon RX 6600 XT GPU Core
Shader units and compute resources
The AMD Radeon RX 6600 XT GPU core specifications define its raw processing power for graphics and compute workloads. Shading units (also called CUDA cores, stream processors, or execution units depending on manufacturer) handle the parallel calculations required for rendering. TMUs (Texture Mapping Units) process texture data, while ROPs (Render Output Units) handle final pixel output. Higher shader counts generally translate to better GPU benchmark performance, especially in demanding games and 3D applications.
RX 6600 XT Clock Speeds
GPU and memory frequencies
Clock speeds directly impact the Radeon RX 6600 XT's performance in GPU benchmarks and real-world gaming. The base clock represents the minimum guaranteed frequency, while the boost clock indicates peak performance under optimal thermal conditions. Memory clock speed affects texture loading and frame buffer operations. The Radeon RX 6600 XT by AMD dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.
AMD's Radeon RX 6600 XT Memory
VRAM capacity and bandwidth
VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The Radeon RX 6600 XT's memory capacity determines how well it handles high-resolution textures and multiple displays. Memory bandwidth, measured in GB/s, affects how quickly data moves between the GPU and VRAM. Higher bandwidth improves performance in memory-intensive scenarios like 4K gaming. The memory bus width and type (GDDR6, GDDR6X, HBM) significantly influence overall GPU benchmark scores.
Radeon RX 6600 XT by AMD Cache
On-chip cache hierarchy
On-chip cache provides ultra-fast data access for the RX 6600 XT, reducing the need to fetch data from slower VRAM. L1 and L2 caches store frequently accessed data close to the compute units. AMD's Infinity Cache (L3) dramatically increases effective bandwidth, improving GPU benchmark performance without requiring wider memory buses. Larger cache sizes help maintain high frame rates in memory-bound scenarios and reduce power consumption by minimizing VRAM accesses.
RX 6600 XT Theoretical Performance
Compute and fill rates
Theoretical performance metrics provide a baseline for comparing the AMD Radeon RX 6600 XT against other graphics cards. FP32 (single-precision) performance, measured in TFLOPS, indicates compute capability for gaming and general GPU workloads. FP64 (double-precision) matters for scientific computing. Pixel and texture fill rates determine how quickly the GPU can render complex scenes. While real-world GPU benchmark results depend on many factors, these specifications help predict relative performance levels.
Radeon RX 6600 XT Ray Tracing & AI
Hardware acceleration features
The AMD Radeon RX 6600 XT includes dedicated hardware for ray tracing and AI acceleration. RT cores handle real-time ray tracing calculations for realistic lighting, reflections, and shadows in supported games. Tensor cores (NVIDIA) or XMX cores (Intel) accelerate AI workloads including DLSS, FSR, and XeSS upscaling technologies. These features enable higher visual quality without proportional performance costs, making the RX 6600 XT capable of delivering both stunning graphics and smooth frame rates in modern titles.
RDNA 2.0 Architecture & Process
Manufacturing and design details
The AMD Radeon RX 6600 XT is built on AMD's RDNA 2.0 architecture, which defines how the GPU processes graphics and compute workloads. The manufacturing process node affects power efficiency, thermal characteristics, and maximum clock speeds. Smaller process nodes pack more transistors into the same die area, enabling higher performance per watt. Understanding the architecture helps predict how the RX 6600 XT will perform in GPU benchmarks compared to previous generations.
AMD's Radeon RX 6600 XT Power & Thermal
TDP and power requirements
Power specifications for the AMD Radeon RX 6600 XT determine PSU requirements and thermal management needs. TDP (Thermal Design Power) indicates the heat output under typical loads, guiding cooler selection. Power connector requirements ensure adequate power delivery for stable operation during demanding GPU benchmarks. The suggested PSU wattage accounts for the entire system, not just the graphics card. Efficient power delivery enables the Radeon RX 6600 XT to maintain boost clocks without throttling.
Radeon RX 6600 XT by AMD Physical & Connectivity
Dimensions and outputs
Physical dimensions of the AMD Radeon RX 6600 XT are critical for case compatibility. Card length, height, and slot width determine whether it fits in your chassis. The PCIe interface version affects bandwidth for communication with the CPU. Display outputs define monitor connectivity options, with modern cards supporting multiple high-resolution displays simultaneously. Verify these specifications against your case and motherboard before purchasing to ensure a proper fit.
AMD API Support
Graphics and compute APIs
API support determines which games and applications can fully utilize the AMD Radeon RX 6600 XT. DirectX 12 Ultimate enables advanced features like ray tracing and variable rate shading. Vulkan provides cross-platform graphics capabilities with low-level hardware access. OpenGL remains important for professional applications and older games. CUDA (NVIDIA) and OpenCL enable GPU compute for video editing, 3D rendering, and scientific applications. Higher API versions unlock newer graphical features in GPU benchmarks and games.
Radeon RX 6600 XT Product Information
Release and pricing details
The AMD Radeon RX 6600 XT is manufactured by AMD as part of their graphics card lineup. Release date and launch pricing provide context for comparing GPU benchmark results with competing products from the same era. Understanding the product lifecycle helps evaluate whether the Radeon RX 6600 XT by AMD represents good value at current market prices. Predecessor and successor information aids in tracking generational improvements and planning future upgrades.
Radeon RX 6600 XT Benchmark Scores
3dmark_3dmark_steel_nomad_dx12Source
3DMark Steel Nomad is the latest GPU benchmark running at native 4K with DirectX 12. It's roughly 3x more demanding than Time Spy, testing AMD Radeon RX 6600 XT with cutting-edge rendering techniques. The benchmark uses state-of-the-art graphics technologies to stress modern hardware.
Top 5 Performers
Top 5 PerformersNearby Performers
Nearby Performersgeekbench_metalSource
Geekbench Metal tests GPU compute using Apple's Metal API. This shows how AMD Radeon RX 6600 XT performs in macOS and iOS applications that leverage GPU acceleration. Metal provides low-overhead access to Apple silicon GPUs. Creative applications on Mac heavily utilize Metal for rendering and video processing.
Top 5 Performers
Nearby Performers
geekbench_openclSource
Geekbench OpenCL tests GPU compute performance using the cross-platform OpenCL API. This shows how AMD Radeon RX 6600 XT handles parallel computing tasks like video encoding and scientific simulations. OpenCL is widely supported across different GPU vendors and platforms.
Top 5 Performers
Nearby Performers
geekbench_vulkanSource
Geekbench Vulkan tests GPU compute using the modern low-overhead Vulkan API. This shows how AMD Radeon RX 6600 XT performs with next-generation graphics and compute workloads. Vulkan offers better CPU efficiency than older APIs like OpenGL. Modern games and applications increasingly use Vulkan for cross-platform GPU acceleration.
Top 5 Performers
Nearby Performers
passmark_directx_10Source
DirectX 10 tests AMD Radeon RX 6600 XT with the graphics API introduced with Windows Vista. This shows performance in games from the 2007-2009 era that targeted this feature level.
Top 5 Performers
Nearby Performers
passmark_directx_11Source
DirectX 11 tests AMD Radeon RX 6600 XT with the widely-used graphics API powering most current games. This shows mainstream gaming performance across the majority of today's titles. DX11 remains the most common rendering path even in newer games.
Top 5 Performers
Nearby Performers
passmark_directx_12Source
DirectX 12 tests AMD Radeon RX 6600 XT with the modern low-overhead graphics API. This shows performance in next-gen games that leverage DX12 features like ray tracing and mesh shaders. DX12 offers better CPU efficiency through reduced driver overhead. AAA games increasingly require DX12 for advanced graphical features and optimal performance.
Top 5 Performers
Nearby Performers
passmark_directx_9Source
DirectX 9 tests AMD Radeon RX 6600 XT performance with the legacy graphics API still used by older games. This shows compatibility and performance with classic titles from the 2000s era. Many indie games and older titles still rely on DirectX 9. Emulators and legacy software also benefit from good DX9 performance.
Top 5 Performers
Nearby Performers
passmark_g2dSource
PassMark G2D tests 2D graphics performance for desktop rendering, UI elements, and productivity applications. This shows how AMD Radeon RX 6600 XT handles everyday visual tasks. Higher scores mean smoother desktop experience and faster UI rendering. Multi-monitor setups and high-DPI displays benefit from strong 2D performance.
Top 5 Performers
Nearby Performers
passmark_g3dSource
PassMark G3D measures overall 3D graphics performance of AMD Radeon RX 6600 XT across DirectX 9 through 12 tests. This provides a comprehensive gaming capability score.
Top 5 Performers
Nearby Performers
passmark_gpu_computeSource
GPU compute tests parallel processing capability of AMD Radeon RX 6600 XT using OpenCL. This shows performance in video encoding, scientific computing, and AI workloads. Non-gaming applications increasingly leverage GPU compute for acceleration. Video editing, 3D rendering, and machine learning all benefit from strong GPU compute scores.
Top 5 Performers
Nearby Performers
About AMD Radeon RX 6600 XT
AMD Radeon RX 6600 XT belongs to the Radeon RX 6000 series, manufactured by AMD, and uses the Navi 23 chip with RDNA 2.0 architecture on TSMC's 7 nm process. The die contains 11,060 million transistors across 237 mm², a transistor density of 46.7M / mm². Production status is end-of-life, with a release date of 2021-07-29 and a launch MSRP of 379 USD. The card is a dual-slot design measuring 190 mm by 110 mm by 40 mm, or 7.5 by 4.3 by 1.6 inches, with display outputs of 1x HDMI 2.1 and 3x DisplayPort 1.4a, and it connects to the host over PCIe 4.0 x8.
Benchmark Performance
The database average benchmark score for the RX 6600 XT is 27,985, placing it at the 71st percentile of all GPUs. Individual scores fluctuate across test suites: 3DMark Steel Nomad DX12 comes in at 1,804, while Geekbench Metal reaches 108,608, Geekbench OpenCL 82,736, and Geekbench Vulkan 89,263. Passmark results are G3D 16,461, GPU Compute 7,520, G2D 912, DirectX 9 194, DirectX 11 163, DirectX 10 109, and DirectX 12 61. Theoretical throughput is 10.60 TFLOPS FP32 and 21.21 TFLOPS FP16 with a 2:1 ratio, while the texture rate is 331.4 GTexel/s and the pixel rate is 165.7 GPixel/s.
The nearest-rival deltas are extremely tight. The RX 6600 XT sits 0.1% above the NVIDIA GeForce GTX 980 Ti, 0.4% above the AMD Radeon R9 M395X, 0.9% below the NVIDIA GeForce RTX 3070, and 1.5% below the AMD FirePro S7150. The widest gap in this entire cluster is only 1.5%, which means the aggregate benchmark picture is one of near-parity rather than dominance. A single test can move a card by more than that, so the specific workload matters more than the average when comparing these four cards. The Passmark DirectX 12 result of 61 is notably below the card’s other scores, but the 71st percentile and 27,985 average are the more stable placement markers.
Ray Tracing and Feature Set
The Navi 23 chip includes 32 RT cores, giving the RX 6600 XT hardware ray tracing capability. The spec list records no tensor cores for this card. The supported APIs are DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The DirectX 12 Ultimate 12_2 feature level is the relevant marker for modern ray-traced titles, and the 32 RT cores provide the dedicated traversal hardware. Vulkan 1.4 and OpenGL 4.6 expand the card’s usability to other graphics and compute paths. The FP16 throughput of 21.21 TFLOPS at a 2:1 ratio also gives compute workloads a higher-throughput path than the 10.60 TFLOPS FP32 figure.
Power and Cooling
The RX 6600 XT carries a TDP of 160 W, with a suggested PSU of 450 W and a single 8-pin power connector. It is a dual-slot card, and its physical dimensions are 190 mm long, 110 mm high, and 40 mm wide. The power and cooling story is therefore simple: a 450 W power supply, one 8-pin connector, and dual-slot chassis clearance. The 160 W TDP is the thermal design point that cooling solutions need to handle, while the 1x 8-pin connector is the electrical input constraint. There is no requirement for a multiple-connector setup, and the 450 W suggestion is the figure users should treat as the minimum recommended power supply.
How It Compares
Against the NVIDIA GeForce GTX 980 Ti, the RX 6600 XT is ahead by 0.1% in average score, with 27,985 versus 27,956. This is effectively a tie; the delta is well within normal benchmark variance.
Against the AMD Radeon R9 M395X, the RX 6600 XT is ahead by 0.4%, scoring 27,985 versus 27,883. The ranking is clear but the separation is small.
Against the NVIDIA GeForce RTX 3070, the RX 6600 XT is behind by 0.9%, with 27,985 versus 28,238. The RTX 3070 is the highest-scoring consumer card in this rival group, but the margin is still under one percent.
Against the AMD FirePro S7150, the RX 6600 XT is behind by 1.5%, scoring 27,985 versus 28,409. That is the largest delta among the four nearest rivals, but it remains a narrow gap in aggregate terms.
Memory Subsystem
The RX 6600 XT uses 8 GB of GDDR6 memory on a 128-bit bus, with 256.0 GB/s of bandwidth. The memory clock is 2000 MHz, listed as 16 Gbps effective. For high-resolution workloads, these numbers define the card’s memory ceiling: 8 GB of capacity and 256.0 GB/s of bandwidth. A 128-bit bus with this bandwidth is enough to feed the 10.60 TFLOPS FP32 throughput only up to a point; beyond that, frame buffer capacity and transfer rate become the limiting factors. The high-resolution story is therefore not about the GPU cores alone but about whether the workload fits inside 8 GB and within 256.0 GB/s. The tight nearest-rival cluster reinforces this: the RX 6600 XT is not placed in a performance tier with a large memory advantage over its immediate competition.
Who Should Consider It
The 71st percentile standing means the RX 6600 XT is above most GPUs in the database, but the nearest-rival deltas show that the surrounding field is extremely dense. Users whose target performance is the 27,985 aggregate level should consider this card, especially if they want DirectX 12 Ultimate feature support and dedicated RT cores. The 8 GB GDDR6 memory and 256.0 GB/s bandwidth make it best matched to workloads that stay within that memory envelope. The 160 W TDP and 450 W suggested PSU mean it fits into systems without oversized power requirements. Because the production status is end-of-life, this card is no longer a new-production option; it has been superseded by the Navi III generation. The benchmark data positions it as a 71st-percentile card with near-parity to four named rivals, so performance expectations should be set around that narrow band.
FAQ
Q: What is the launch MSRP of the AMD Radeon RX 6600 XT?
A: The launch MSRP is 379 USD.
Q: Does the RX 6600 XT support hardware ray tracing?
A: Yes. It has 32 RT cores, and its API support includes DirectX 12 Ultimate (12_2).
Q: What memory configuration does the card use?
A: It uses 8 GB of GDDR6 on a 128-bit bus, with 256.0 GB/s bandwidth and a memory clock of 2000 MHz, listed as 16 Gbps effective.
Q: What power supply is suggested for this card?
A: The TDP is 160 W, the suggested PSU is 450 W, and the card requires one 8-pin power connector.
Q: Which APIs are supported?
A: The card supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.
Q: How does the RX 6600 XT compare to the NVIDIA GeForce RTX 3070 in this database?
A: The RTX 3070 has an average score of 28,238, making the RX 6600 XT 0.9% behind it.
The NVIDIA Equivalent of Radeon RX 6600 XT
Looking for a similar graphics card from NVIDIA? The NVIDIA GeForce RTX 3060 12 GB GA104 offers comparable performance and features in the NVIDIA lineup.
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