AMD Radeon 840M vs AMD Radeon R9 280X
The Radeon R9 280X has 28% better performance than the Radeon 840M for the 3DMark 11 Performance GPU benchmark.
The Radeon R9 280X has 22% 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 280X GPU
The AMD Radeon R9 280X is an end-of-life desktop graphics card that released in Q4 2013 with a MSRP of $299. It is built on the GCN 1.0 GPU microarchitecture (codename Tahiti) and is manufactured on a 28 nm process.
Memory
The R9 280X has 3 GB of GDDR5 memory, with a 1,500 MHz memory clock and a 384 bit interface. This gives it a memory bandwidth of 288 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 280X includes 2,048 stream processors (SPs), the processing units for handling parallel computing tasks. The GPU operates at a core clock speed of 850 MHz and can dynamically boost its clock speed up to 1,000 MHz. Complementing the processing units are 128 texture mapping units (TMUs) for efficient texture filtering and 32 render output units (ROPs) for pixel processing.
Compatibility & Power Consumption
The R9 280X 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 250 W.
Benchmark Performance & Value
The R9 280X has the 193rd best 3DMark 11 Performance GPU score among the 567 benchmarked GPUs in our database. It achieves 8.32% of the performance of the best benchmarked GPU, the NVIDIA GeForce RTX 5090. Its 10,792 score and $299 launch price (MSRP) gives it a performance per dollar of 36.09. This is the 84th 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 280X |
|---|---|---|
| Manufacturer | AMD | AMD |
| Architecture | RDNA 3+ | GCN 1.0 |
| Market Segment | Mobile | Desktop |
| Release Date | -- | Q4 2013 |
| Launch Price (MSRP) | -- | $299 |
| 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 280X |
|---|---|---|
| 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 280X has 28% 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 280X is ranked 193rd with a score of 10,792.
The Radeon R9 280X has 56% of the performance per dollar compared to the leader for the 3DMark 11 Performance GPU benchmark: NVIDIA GeForce RTX 5090.
Radeon R9 280X's 36.09 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 | |
|---|---|---|
| GeForce GTX 1650 | 13,759 | +63% |
| Radeon R9 380 | 12,191 | +44% |
| Radeon R9 280X | 10,792 | +28% |
| GeForce GTX 960 | 10,767.5 | +27% |
| GeForce GTX 680 | 10,216.5 | +21% |
| 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 960 | 54.11 | +50% |
| GeForce GTX 950 | 52.52 | +46% |
| GeForce GTX 970 | 48.73 | +35% |
| Radeon R9 390X | 41.83 | +16% |
| GeForce GTX 750 Ti | 36.09 | +0% |
| Radeon R9 280X | 36.09 | |
| GeForce GTX 980 | 32.07 | -11% |
| GeForce GTX 760 | 31.98 | -11% |
| Radeon R9 FURY | 31.95 | -11% |
| Radeon R9 290X | 29.45 | -18% |
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 280X |
|---|---|---|
| 3DMark Time Spy Graphics | 1,705 | 2,210 (+29.62%) |
| 3DMark Time Spy Score | 1,928 | 2,393 (+24.12%) |
| 3DMark Cloud Gate Graphics | 37,360 | 52,117 (+39.5%) |
| 3DMark Fire Strike Standard Graphics | 5,606 | 8,343 (+48.82%) |
| 3DMark 11 Performance Score | 8,814 | 10,241 (+16.19%) |
| Cinebench R15 OpenGL 64 Bit | 181.3 | -- |
| PassMark G3D Mark | 3,925 | 6,111 (+55.69%) |
| PassMark G2D Mark | 905 (+33.48%) | 678 |
| Unigine Heaven 3.0 DirectX 11 | -- | 95.2 |
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 280X |
|---|---|---|
| Codename | -- | Tahiti |
| Architecture | RDNA 3+ | GCN 1.0 |
| Process Size | 4 nm | 28 nm |
| Transistors | -- | 4,313 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 280X |
|---|---|---|
| Memory Size | -- | 3 GB |
| Memory Type | -- | GDDR5 |
| Memory Bandwidth | -- | 288 Gb/s |
| Memory Clock | 7,500 MHz | 1,500 MHz |
| Memory Interface | -- | 384 bit |
| L1 Cache | -- | 16 KB |
| L2 Cache | -- | 768 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 280X |
|---|---|---|
| Slots | -- | 2 slots |
| Bus Interface | -- | PCIe 3.0 x16 |
| Thermal Design Power (TDP) | -- | 250 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 280X |
|---|---|---|
| Stream Processors (SP) | 256 | 2,048 |
| Compute Units (CU) | -- | 32 |
| Texture Mapping Units (TMU) | -- | 128 |
| Render Output Units (ROP) | -- | 32 |
| Ray Accelerators | 4 | -- |
| Core Clock Speed | -- | 850 MHz |
| Core Clock Speed (Boost) | 2,900 MHz | 1,000 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 280X |
|---|---|---|
| Pixel Fill Rate | -- | 32 GPixel/s |
| Texture Fill Rate | -- | 128 GTexel/s |
| FP32 Performance | -- | 4.1 TFLOPS |
| FP64 Performance | -- | 1,024 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 280X |
|---|---|---|
| DirectX | -- | 12 (11_1) |
| OpenCL | -- | 2.1 (1.2) |
| OpenGL | -- | 4.6 |
| Shader Model | -- | 6.5 (5.1) |
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* Performance rating, performance per dollar, and rankings are based on the 3DMark 11 Performance GPU benchmark and MSRP.