AMD Radeon RX 6600 XT vs AMD Radeon R9 390X
The Radeon RX 6600 XT has 118% better performance than the Radeon R9 390X for the 3DMark 11 Performance GPU benchmark.
The Radeon RX 6600 XT has 146% better value for the money than the Radeon R9 390X for the 3DMark 11 Performance GPU benchmark.
Summary
About the AMD Radeon RX 6600 XT GPU
The AMD Radeon RX 6600 XT is a desktop graphics card that launched in Q3 2021 with a MSRP of $379. It is built on the RDNA 2.0 GPU microarchitecture (codename Navi 23) and is manufactured on a 7 nm process.
Memory
The RX 6600 XT has 8 GB of GDDR6 memory, with a 2,000 MHz memory clock and a 128 bit interface. This gives it a memory bandwidth of 256 Gb/s, which affects how fast it can transfer data to and from memory. GPU memory stores temporary data that helps the GPU with complex math and graphics operations. More memory is generally better, as not having enough can cause performance bottlenecks.
Cores and Clock Speeds
The RX 6600 XT includes 2,048 stream processors (SPs), the processing units for handling parallel computing tasks. The GPU operates at a core clock speed of 1,968 MHz and can dynamically boost its clock speed up to 2,589 MHz. It usually operates at 2,359 MHz during typical gaming workloads. Complementing the processing units are 128 texture mapping units (TMUs) for efficient texture filtering and 64 render output units (ROPs) for pixel processing. Additionally, the GPU features 32 ray accelerators dedicated to real-time ray tracing calculations.
Compatibility & Power Consumption
The RX 6600 XT occupies 2 PCIe expansion slots. It supports HDMI 2.1, DisplayPort 1.4a display connections. AMD recommends a power supply of at least 450 W to handle the GPU's thermal design power (TDP) of 160 W.
Benchmark Performance & Value
The RX 6600 XT has the 41st best 3DMark 11 Performance GPU score among the 543 benchmarked GPUs in our database. It achieves 37.28% 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.
About the AMD Radeon R9 390X GPU
The AMD Radeon R9 390X is an end-of-life desktop graphics card that released in Q2 2015 with a MSRP of $429. It is built on the GCN 2.0 GPU microarchitecture (codename Grenada) and is manufactured on a 28 nm process.
Memory
The R9 390X has 8 GB of GDDR5 memory, with a 1,500 MHz memory clock and a 512 bit interface. This gives it a memory bandwidth of 384 Gb/s, which affects how fast it can transfer data to and from memory. GPU memory stores temporary data that helps the GPU with complex math and graphics operations. More memory is generally better, as not having enough can cause performance bottlenecks.
Cores and Clock Speeds
The R9 390X includes 2,816 stream processors (SPs), the processing units for handling parallel computing tasks. The GPU operates at a core clock speed of 1,050 MHz. Complementing the processing units are 176 texture mapping units (TMUs) for efficient texture filtering and 64 render output units (ROPs) for pixel processing.
Compatibility & Power Consumption
The R9 390X occupies 2 PCIe expansion slots. It supports DVI, HDMI 1.4a, DisplayPort 1.2 display connections. AMD recommends a power supply of at least 600 W to handle the GPU's thermal design power (TDP) of 275 W.
Benchmark Performance & Value
The R9 390X has the 123rd best 3DMark 11 Performance GPU score among the 543 benchmarked GPUs in our database. It achieves 17.13% of the performance of the best benchmarked GPU, the NVIDIA GeForce RTX 4090. Its 17,944 score and $429 launch price (MSRP) gives it a performance per dollar of 41.83. This is the 70th 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 6600 XT | Radeon R9 390X |
|---|---|---|
| Manufacturer | AMD | AMD |
| Architecture | RDNA 2.0 | GCN 2.0 |
| Market Segment | Desktop | Desktop |
| Release Date | Q3 2021 | Q2 2015 |
| Launch Price (MSRP) | $379 | $429 |
| Production Status | Active | End-of-life |
| 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 6600 XT | Radeon R9 390X |
|---|---|---|
| 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 6600 XT has 118% better performance than the Radeon R9 390X for the 3DMark 11 Performance GPU benchmark.
The Radeon RX 6600 XT is ranked 41st with a score of 39,051, and the Radeon R9 390X is ranked 123rd with a score of 17,944.
The Radeon RX 6600 XT has 146% better value for the money than the Radeon R9 390X for the 3DMark 11 Performance GPU benchmark.
The Radeon RX 6600 XT is ranked 14th with a performance per dollar of 103.04, and the Radeon R9 390X is ranked 70th with a performance per dollar of 41.83.
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 2080 SUPER | 40,963 | +5% |
| GeForce RTX 2080 | 40,278 | +3% |
| Radeon RX 6600 XT | 39,051 | |
| GeForce RTX 4060 | 38,191 | -2% |
| GeForce RTX 3060 Ti | 37,941 | -3% |
| Radeon RX 570 | 18,967 | -51% |
| GeForce GTX 1650 SUPER | 18,218 | -53% |
| Radeon R9 390X | 17,944 | -54% |
| Radeon RX 480 | 17,919 | -54% |
| Radeon RX 470 | 17,624.5 | -55% |
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 | +16% |
| Radeon RX 5600 XT | 112.22 | +9% |
| Radeon RX 6600 XT | 103.04 | |
| GeForce RTX 4070 | 100.12 | -3% |
| Radeon RX 6600 | 96.58 | -6% |
| GeForce GTX 1080 | 48.85 | -53% |
| GeForce GTX 970 | 48.73 | -53% |
| Radeon R9 390X | 41.83 | -59% |
| Radeon R9 280X | 36.09 | -65% |
| GeForce GTX 980 Ti | 35.53 | -66% |
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 6600 XT | Radeon R9 390X |
|---|---|---|
| 3DMark Time Spy Graphics | 9,565 | -- |
| 3DMark Time Spy Score | 9,971 | -- |
| 3DMark Cloud Gate Graphics | 156,297 (+110.22%) | 74,351 |
| 3DMark Fire Strike Standard Graphics | 28,342 (+128.77%) | 12,389 |
| 3DMark 11 Performance Score | 31,304 (+118.5%) | 14,327 |
| Cinebench R15 OpenGL 64 Bit | 308 (+135.29%) | 130.9 |
| PassMark G3D Mark | 16,510 (+74.91%) | 9,439 |
| PassMark G2D Mark | 915 (+11.59%) | 820 |
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 6600 XT | Radeon R9 390X |
|---|---|---|
| Codename | Navi 23 | Grenada |
| Architecture | RDNA 2.0 | GCN 2.0 |
| Process Size | 7 nm | 28 nm |
| Transistors | 11,060 million | 6,200 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 6600 XT | Radeon R9 390X |
|---|---|---|
| Memory Size | 8 GB | 8 GB |
| Memory Type | GDDR6 | GDDR5 |
| Memory Bandwidth | 256 Gb/s | 384 Gb/s |
| Memory Clock | 2,000 MHz | 1,500 MHz |
| Memory Interface | 128 bit | 512 bit |
| L1 Cache | 128 KB | 16 KB |
| L2 Cache | 2 MB | 1,024 KB |
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 6600 XT | Radeon R9 390X |
|---|---|---|
| Slots | 2 slots | 2 slots |
| Bus Interface | PCIe 4.0 x8 | PCIe 3.0 x16 |
| Thermal Design Power (TDP) | 160 W | 275 W |
| Suggested PSU | 450 W | 600 W |
| Power Connectors | 1x 8-pin | 1x 6-pin + 1x 8-pin |
| Outputs | HDMI 2.1, DisplayPort 1.4a | DVI, HDMI 1.4a, DisplayPort 1.2 |
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 6600 XT | Radeon R9 390X |
|---|---|---|
| Stream Processors (SP) | 2,048 | 2,816 |
| Compute Units (CU) | 32 | 44 |
| Texture Mapping Units (TMU) | 128 | 176 |
| Render Output Units (ROP) | 64 | 64 |
| Ray Accelerators | 32 | -- |
| Core Clock Speed | 1,968 MHz | 1,050 MHz |
| Core Clock Speed (Boost) | 2,589 MHz | -- |
| Core Clock Speed (Game) | 2,359 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 6600 XT | Radeon R9 390X |
|---|---|---|
| Pixel Fill Rate | 165.7 GPixel/s | 67.2 GPixel/s |
| Texture Fill Rate | 331.4 GTexel/s | 184.8 GTexel/s |
| FP32 Performance | 10.6 TFLOPS | 5.91 TFLOPS |
| FP64 Performance | 662.8 GFLOPS | 739.2 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 6600 XT | Radeon R9 390X |
|---|---|---|
| DirectX | 12 Ultimate (12_2) | 12 (12_0) |
| OpenCL | 2.1 | 2.1 |
| OpenGL | 4.6 | 4.6 |
| Shader Model | 6.8 | 6.5 |
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* Performance rating, performance per dollar, and rankings are based on the 3DMark 11 Performance GPU benchmark and MSRP.