AMD Radeon 840M vs AMD Radeon R9 390X
The Radeon R9 390X has 112% better performance than the Radeon 840M for the 3DMark 11 Performance GPU benchmark.
The Radeon R9 390X has 25% of the performance per dollar compared to the leader for the 3DMark 11 Performance GPU benchmark: AMD Radeon RX 9070 XT.
Summary
About the AMD Radeon 840M GPU
The Radeon 840M is a graphics card by AMD. It is built on the RDNA 3+ GPU microarchitecture and is manufactured on a 4 nm process.
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 840M includes 256 stream processors (SPs), the processing units for handling parallel computing tasks. Additionally, the GPU features 4 ray accelerators dedicated to real-time ray tracing calculations.
Benchmark Performance
The 840M has the 219th best 3DMark 11 Performance GPU score among the 567 benchmarked GPUs in our database. It achieves 6.51% of the performance of the best benchmarked GPU, the NVIDIA GeForce RTX 5090.
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 140th best 3DMark 11 Performance GPU score among the 567 benchmarked GPUs in our database. It achieves 13.83% of the performance of the best benchmarked GPU, the NVIDIA GeForce RTX 5090. Its 17,944 score and $429 launch price (MSRP) gives it a performance per dollar of 41.83. This is the 81st 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 840M | Radeon R9 390X |
|---|---|---|
| Manufacturer | AMD | AMD |
| Architecture | RDNA 3+ | GCN 2.0 |
| Market Segment | Mobile | Desktop |
| Release Date | -- | Q2 2015 |
| Launch Price (MSRP) | -- | $429 |
| Production Status | -- | 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
Space Marine 2 | Radeon 840M | Radeon R9 390X |
|---|---|---|
| Low - 1080p | 16 FPS | -- |
| Medium - 1080p | 14 FPS | -- |
| High - 1080p | 12 FPS | -- |
| Ultra - 1080p | -- | -- |
| QHD - 1440p | -- | -- |
| 4K UHD - 2160p | -- | -- |
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 4070 Mobile | 71 | +482% |
| GeForce RTX 5060 Mobile | 65.7 | +439% |
| Radeon RX 7600M XT | 65.6 | +438% |
| GeForce RTX 5070 Mobile | 61.6 | +405% |
| GeForce RTX 4080 Mobile | 55.5 | +355% |
| Radeon 840M | 12.2 | |
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 | |
|---|---|---|
| Our database does not have enough data to compare the FPS per dollar with other GPUs. | ||
Benchmark Performance
The Radeon R9 390X has 112% better performance than the Radeon 840M for the 3DMark 11 Performance GPU benchmark.
The Radeon 840M is ranked 219th with a score of 8,453, and the Radeon R9 390X is ranked 140th with a score of 17,944.
The Radeon R9 390X has 64% of the performance per dollar compared to the leader for the 3DMark 11 Performance GPU benchmark: NVIDIA GeForce RTX 5090.
Radeon R9 390X's 41.83 performance per dollar ranks it 0th among the other benchmarked GPUs in our database.
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 | |
|---|---|---|
| Radeon RX 570 | 18,967 | +124% |
| GeForce GTX 1650 SUPER | 18,224.5 | +116% |
| Radeon R9 390X | 17,944 | +112% |
| Radeon RX 480 | 17,919 | +112% |
| Radeon RX 470 | 17,624.5 | +108% |
| Radeon R9 M395 (Mac Edition) | 8,656 | +2% |
| GeForce GTX 880M | 8,578 | +1% |
| Radeon 840M | 8,453 | |
| Radeon RX 560 Mobile | 8,329 | -1% |
| Quadro M3000M | 8,288.5 | -2% |
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 GTX 1060 (6 GB) | 58.2 | +39% |
| Radeon VII | 54.19 | +30% |
| GeForce GTX 960 | 54.11 | +29% |
| GeForce GTX 1080 | 48.85 | +17% |
| GeForce GTX 970 | 48.73 | +17% |
| Radeon R9 390X | 41.83 | |
| Radeon R9 280X | 36.09 | -14% |
| GeForce GTX 980 Ti | 35.53 | -15% |
| GeForce GTX 980 | 32.07 | -23% |
| Radeon R9 FURY | 31.95 | -24% |
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 840M | Radeon R9 390X |
|---|---|---|
| 3DMark Time Spy Graphics | 1,705 | -- |
| 3DMark Time Spy Score | 1,928 | -- |
| 3DMark Cloud Gate Graphics | 37,360 | 74,351 (+99.01%) |
| 3DMark Fire Strike Standard Graphics | 5,606 | 12,389 (+121%) |
| 3DMark 11 Performance Score | 8,814 | 14,327 (+62.55%) |
| Cinebench R15 OpenGL 64 Bit | 181.3 (+38.5%) | 130.9 |
| PassMark G3D Mark | 3,925 | 9,338 (+137.91%) |
| PassMark G2D Mark | 905 (+11.73%) | 810 |
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 840M | Radeon R9 390X |
|---|---|---|
| Codename | -- | Grenada |
| Architecture | RDNA 3+ | GCN 2.0 |
| Process Size | 4 nm | 28 nm |
| Transistors | -- | 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 840M | Radeon R9 390X |
|---|---|---|
| Memory Size | -- | 8 GB |
| Memory Type | -- | GDDR5 |
| Memory Bandwidth | -- | 384 Gb/s |
| Memory Clock | 7,500 MHz | 1,500 MHz |
| Memory Interface | -- | 512 bit |
| L1 Cache | -- | 16 KB |
| L2 Cache | -- | 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 840M | Radeon R9 390X |
|---|---|---|
| Slots | -- | 2 slots |
| Bus Interface | -- | PCIe 3.0 x16 |
| Thermal Design Power (TDP) | -- | 275 W |
| Suggested PSU | -- | 600 W |
| Power Connectors | -- | 1x 6-pin + 1x 8-pin |
| Outputs | -- | 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 840M | Radeon R9 390X |
|---|---|---|
| Stream Processors (SP) | 256 | 2,816 |
| Compute Units (CU) | -- | 44 |
| Texture Mapping Units (TMU) | -- | 176 |
| Render Output Units (ROP) | -- | 64 |
| Ray Accelerators | 4 | -- |
| Core Clock Speed | -- | 1,050 MHz |
| Core Clock Speed (Boost) | 2,900 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 840M | Radeon R9 390X |
|---|---|---|
| Pixel Fill Rate | -- | 67.2 GPixel/s |
| Texture Fill Rate | -- | 184.8 GTexel/s |
| FP32 Performance | -- | 5.91 TFLOPS |
| FP64 Performance | -- | 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 840M | Radeon R9 390X |
|---|---|---|
| DirectX | -- | 12 (12_0) |
| OpenCL | -- | 2.1 |
| OpenGL | -- | 4.6 |
| Shader Model | -- | 6.5 |
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* Performance rating, performance per dollar, and rankings are based on the 3DMark 11 Performance GPU benchmark and MSRP.