AMD Radeon RX 6900 XT vs AMD Radeon RX 6600 XT
The Radeon RX 6900 XT has 51% better performance than the Radeon RX 6600 XT for the 3DMark 11 Performance GPU benchmark.
The Radeon RX 6600 XT has 74% better value for the money than the Radeon RX 6900 XT for the 3DMark 11 Performance GPU benchmark.
Summary
About the AMD Radeon RX 6900 XT GPU
The Radeon RX 6900 XT is a desktop graphics card by AMD. It launched in Q4 2020 with a suggested retail price of $999. Its Navi 21 chip that powers the GPU uses the RDNA 2.0 architecture and is fabricated on the 7 nm process.
This GPU is paired with 16 GB of GDDR6 VRAM. Its 2,000 MHz memory clock and 256 bit interface gives it a bandwidth of 512 Gb/s. This impacts how much data it can store, and how fast it transfers the data to and from memory.
The RX 6900 XT is a large graphics card, taking up 3 PCIe slots. It supports HDMI 2.1, DisplayPort 1.4a, USB Type-C display ports. This desktop card has a TDP of 300 W. AMD recommends using a power supply of at least 700 W with this card. A power supply lower than this might result in system crashes and potentially damage your hardware.
The Radeon RX 6900 XT has the 18th highest 3DMark 11 Performance GPU score among the 540 benchmarked GPUs in our database. It achieves 56.34% of the performance of the best benchmarked GPU, the NVIDIA GeForce RTX 4090. Its 59,119 score and $999 launch price (MSRP) gives it a performance per dollar of 59.18. This is the 55th best in value for the 3DMark 11 Performance GPU benchmark.
About the AMD Radeon RX 6600 XT GPU
The Radeon RX 6600 XT is a desktop graphics card by AMD. It launched in Q3 2021 with a suggested retail price of $379. Its Navi 23 chip that powers the GPU uses the RDNA 2.0 architecture and is fabricated on the 7 nm process.
This GPU is paired with 8 GB of GDDR6 VRAM. Its 2,000 MHz memory clock and 128 bit interface gives it a bandwidth of 256 Gb/s. This impacts how much data it can store, and how fast it transfers the data to and from memory.
The RX 6600 XT is a dual slot graphics card, taking up 2 PCIe slots. It supports HDMI 2.1, DisplayPort 1.4a display ports. This desktop card has a TDP of 160 W. AMD recommends using a power supply of at least 450 W with this card. A power supply lower than this might result in system crashes and potentially damage your hardware.
The Radeon RX 6600 XT has the 41st highest 3DMark 11 Performance GPU score among the 540 benchmarked GPUs in our database. It achieves 37.21% of the performance of the best benchmarked GPU, the NVIDIA GeForce RTX 4090. Its 39,051 score and $379 launch price (MSRP) gives it a performance per dollar of 103.04. This is the 14th best in value for the 3DMark 11 Performance GPU benchmark.
General Info
General overview of the GPU, including details like its manufacturer, release date, launch price, and current production status.
| Info | Radeon RX 6900 XT | Radeon RX 6600 XT |
|---|---|---|
| Manufacturer | AMD | AMD |
| Architecture | RDNA 2.0 | RDNA 2.0 |
| Market Segment | Desktop | Desktop |
| Release Date | Q4 2020 | Q3 2021 |
| Launch Price (MSRP) | $999 | $379 |
| Production Status | Active | Active |
| Shop | Check Price | Check Price |
Gaming Performance
Select a game to compare FPS metrics
FPS Benchmarks
This table showcases the average frame rate (FPS) achieved both GPUs in at various resolutions. Frame rate is a crucial indicator of how smoothly the GPU can run the game. A higher FPS generally translates to a smoother gameplay experience.
- Frames Per Second
The Finals | Radeon RX 6900 XT | Radeon RX 6600 XT |
|---|---|---|
| Low - 1080p | -- | -- |
| Medium - 1080p | -- | -- |
| High - 1080p | -- | -- |
| Ultra - 1080p | -- | 113 FPS |
| QHD - 1440p | -- | 69 FPS |
| 4K UHD - 2160p | -- | 31 FPS |
Compare Frames Per Second (FPS)
The average frame rate (FPS) in can be compared to similar GPUs to assess relative performance. Generally, higher FPS results in a smoother gameplay experience.
| GPU | Frames Per Second | |
|---|---|---|
| GeForce RTX 3060 Ti | 46.3 | +48% |
| Arc A770 | 40.5 | +29% |
| GeForce RTX 2070 SUPER | 35.1 | +12% |
| Arc A750 | 35.1 | +12% |
| Radeon RX 6600 XT | 31.3 | |
| Radeon RX 5700 XT | 30.1 | -4% |
| GeForce RTX 2060 SUPER | 30.1 | -4% |
| Radeon RX 5700 | 26.1 | -17% |
| Radeon RX 5600 XT | 25.3 | -19% |
Compare Cost Per Frame
The average cost per frame in can be compared to similar GPUs to assess relative value. Generally, a lower cost per frame implies better value for your money.
| GPU | Cost Per Frame | |
|---|---|---|
| GeForce RTX 3070 | 9.26 | -24% |
| GeForce RTX 3070 Ti | 10.36 | -14% |
| Radeon RX 5600 XT | 11.03 | -9% |
| GeForce RTX 3080 (12 GB) | 11.08 | -8% |
| Radeon RX 6800 | 11.65 | -4% |
| Radeon RX 6600 XT | 12.11 | |
| Radeon RX 6600 | 13.21 | +9% |
| Radeon RX 5700 XT | 13.26 | +9% |
| GeForce RTX 2060 SUPER | 13.26 | +9% |
| Radeon RX 5700 | 13.37 | +10% |
Benchmark Performance
The Radeon RX 6900 XT has 51% better performance than the Radeon RX 6600 XT for the 3DMark 11 Performance GPU benchmark.
The Radeon RX 6900 XT is ranked 18th with a score of 59,119, and the Radeon RX 6600 XT is ranked 41st with a score of 39,051.
The Radeon RX 6600 XT has 74% better value for the money than the Radeon RX 6900 XT for the 3DMark 11 Performance GPU benchmark.
The Radeon RX 6900 XT is ranked 55th with a performance per dollar of 59.18, and the Radeon RX 6600 XT is ranked 14th with a performance per dollar of 103.04.
Relative Performance
The average score in the benchmark test can be compared to similar GPUs to assess relative performance. Generally, powerful GPUs tend to have higher scores.
| GPU | Benchmark Performance | |
|---|---|---|
| GeForce RTX 3080 Ti | 60,980 | +3% |
| GeForce RTX 4070 | 59,969 | +1% |
| Radeon RX 6900 XT | 59,119 | |
| Radeon RX 7700 XT | 57,340 | -3% |
| GeForce RTX 3080 (12 GB) | 56,634 | -4% |
| GeForce RTX 2080 SUPER | 40,963 | -31% |
| GeForce RTX 2080 | 40,278 | -32% |
| Radeon RX 6600 XT | 39,051 | -34% |
| GeForce RTX 4060 | 38,191 | -35% |
| Radeon VII | 37,881 | -36% |
Relative Value For Money
The average performance per dollar in the benchmark test can be compared to similar GPUs to assess relative value. A higher score implies a better value for your money.
| GPU | Performance Per Dollar | |
|---|---|---|
| GeForce RTX 4060 Ti (8 GB) | 119.81 | +102% |
| Radeon RX 5600 XT | 112.22 | +90% |
| Radeon RX 6600 XT | 103.04 | +74% |
| GeForce RTX 4070 | 100.12 | +69% |
| Radeon RX 6600 | 96.58 | +63% |
| Radeon RX 6950 XT | 65.72 | +11% |
| GeForce RTX 4090 | 65.63 | +11% |
| Radeon RX 6900 XT | 59.18 | |
| GeForce RTX 2080 SUPER | 58.6 | -1% |
| GeForce RTX 2080 | 57.62 | -3% |
Benchmark Scores
This table showcases the average performance scores achieved by both GPUs across industry-standard benchmark tests. These scores provide a valuable insight into overall performance. Powerful GPUs tend to have higher scores.
- Popular
| Benchmark | Radeon RX 6900 XT | Radeon RX 6600 XT |
|---|---|---|
| 3DMark Time Spy Graphics | 18,210 (+90.38%) | 9,565 |
| 3DMark Time Spy Score | 17,549 (+76%) | 9,971 |
| 3DMark Cloud Gate Graphics | -- | 156,297 |
| 3DMark Fire Strike Standard Graphics | 50,587 (+78.49%) | 28,342 |
| 3DMark Night Raid Graphics | 160,895 | -- |
| 3DMark 11 Performance Score | 42,418 (+35.5%) | 31,304 |
| Cinebench R15 OpenGL 64 Bit | -- | 308 |
| PassMark G3D Mark | 26,836 (+62.76%) | 16,488 |
| PassMark G2D Mark | 1,037 (+12.11%) | 925 |
Technical Specs
Graphics Processor
General information about the graphics processing unit like their architecture, manufacturing process size, and transistor count. Newer GPU architectures generally bring efficiency improvements and may introduce technologies that enhance graphical capabilities.
| Spec | Radeon RX 6900 XT | Radeon RX 6600 XT |
|---|---|---|
| Codename | Navi 21 | Navi 23 |
| Architecture | RDNA 2.0 | RDNA 2.0 |
| Process Size | 7 nm | 7 nm |
| Transistors | 26,800 million | 11,060 million |
Memory Details
Memory specifications like their capacity, bandwidth, and clock speeds. GPU memory stores graphics data like frames, textures, and shadows which helps display rendered images. These specs are crucial for graphics-intense applications like gaming and 3D modeling.
| Spec | Radeon RX 6900 XT | Radeon RX 6600 XT |
|---|---|---|
| Memory Size | 16 GB | 8 GB |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bandwidth | 512 Gb/s | 256 Gb/s |
| Memory Clock | 2,000 MHz | 2,000 MHz |
| Memory Interface | 256 bit | 128 bit |
| L1 Cache | 128 KB | 128 KB |
| L2 Cache | 4 MB | 2 MB |
Board Compatibility
Compatibility information like their slot size, bus interface, power consumption, and display support. These specs are useful for verifying compatibility with your motherboard, power supply, and monitor.
| Spec | Radeon RX 6900 XT | Radeon RX 6600 XT |
|---|---|---|
| Slots | 3 slots | 2 slots |
| Bus Interface | PCIe 4.0 x16 | PCIe 4.0 x8 |
| Thermal Design Power (TDP) | 300 W | 160 W |
| Suggested PSU | 700 W | 450 W |
| Power Connectors | 2x 8-pin | 1x 8-pin |
| Outputs | HDMI 2.1, DisplayPort 1.4a, USB Type-C | HDMI 2.1, DisplayPort 1.4a |
Cores & Clock Speeds
Processing power information like its cores and clock speed. These specs impact how fast they can process graphics. Each type of core or component serves a specific computational purpose.
| Spec | Radeon RX 6900 XT | Radeon RX 6600 XT |
|---|---|---|
| Stream Processors (SP) | 5,120 | 2,048 |
| Compute Units (CU) | 80 | 32 |
| Texture Mapping Units (TMU) | 320 | 128 |
| Render Output Units (ROP) | 128 | 64 |
| Ray Tracing Cores | 80 | 32 |
| Core Clock Speed | 1,825 MHz | 1,968 MHz |
| Core Clock Speed (Boost) | 2,250 MHz | 2,589 MHz |
Theoretical Performance
Theoretical performance numbers derived from the raw specifications of the different components like core count and clock speeds. While these provide a glimpse into peak processing power, they do not represent real-world performance.
| Spec | Radeon RX 6900 XT | Radeon RX 6600 XT |
|---|---|---|
| Pixel Fill Rate | 288 GPixel/s | 165.7 GPixel/s |
| Texture Fill Rate | 720 GTexel/s | 331.4 GTexel/s |
| FP32 Performance | 23.04 TFLOPS | 10.6 TFLOPS |
| FP64 Performance | 1,440 GFLOPS | 662.8 GFLOPS |
API Support
Graphics API versions supported by these graphics cards. APIs evolve over time, introducing new features and functionalities. Older GPUs may not support recent versions.
| Spec | Radeon RX 6900 XT | Radeon RX 6600 XT |
|---|---|---|
| DirectX | 12 Ultimate (12_2) | 12 Ultimate (12_2) |
| OpenCL | 2.1 | 2.1 |
| OpenGL | 4.6 | 4.6 |
| Shader Model | 6.7 | 6.7 |
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* Performance rating, performance per dollar, and rankings are based on the 3DMark 11 Performance GPU benchmark and MSRP.