GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon R9 280X
75%
75%
AMD Radeon R9 390
146%
146%
AMD Radeon R9 390 is approximately 71% faster
Technical Specifications
| Specification | AMD Radeon R9 280X | AMD Radeon R9 390 |
|---|---|---|
| Graphics ProcessorDifferent | Tahiti | Grenada |
| CoresDifferent | 2048 | 2560 |
| TMUsDifferent | 128 | 160 |
| ROPsDifferent | 32 | 64 |
| Memory SizeDifferent | 3 GB | 8 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 384 bit | 512 bit |
Graphics Processor
| Feature | AMD Radeon R9 280X | AMD Radeon R9 390 |
|---|---|---|
| GPU NameDifferent | Tahiti | Grenada |
| GPU VariantDifferent | Tahiti XTL(215-0821065) | Grenada PRO(215-0880030) |
| ArchitectureDifferent | GCN 1.0 | GCN 2.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| TransistorsDifferent | 4,313 million | 6,200 million |
| DensityDifferent | 12.3M / mm² | 14.2M / mm² |
| Die SizeDifferent | 352 mm² | 438 mm² |
Graphics Card
| Feature | AMD Radeon R9 280X | AMD Radeon R9 390 |
|---|---|---|
| Release DateDifferent | Oct 8th, 2013 | Jun 18th, 2015 |
| GenerationDifferent | Volcanic Islands(R9 200) | Pirate Islands(R9 300) |
| PredecessorDifferent | Sea Islands | Volcanic Islands |
| SuccessorDifferent | Pirate Islands | Arctic Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 299 USD | 329 USD |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 105 in our database | 35 in our database |
Clock Speeds
| Feature | AMD Radeon R9 280X | AMD Radeon R9 390 |
|---|---|---|
| Base ClockDifferent | 850 MHz | N/A |
| Boost ClockDifferent | 1000 MHz | N/A |
| Memory Clock | 1500 MHz6 Gbps effective | 1500 MHz6 Gbps effective |
| GPU ClockDifferent | N/A | 1000 MHz |
Memory
| Feature | AMD Radeon R9 280X | AMD Radeon R9 390 |
|---|---|---|
| Memory SizeDifferent | 3 GB | 8 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 384 bit | 512 bit |
| BandwidthDifferent | 288.0 GB/s | 384.0 GB/s |
Render Config
| Feature | AMD Radeon R9 280X | AMD Radeon R9 390 |
|---|---|---|
| Shading UnitsDifferent | 2048 | 2560 |
| TMUsDifferent | 128 | 160 |
| ROPsDifferent | 32 | 64 |
| Compute UnitsDifferent | 32 | 40 |
| L1 Cache | 16 KB (per CU) | 16 KB (per CU) |
| L2 CacheDifferent | 768 KB | 1024 KB |
Theoretical Performance
| Feature | AMD Radeon R9 280X | AMD Radeon R9 390 |
|---|---|---|
| Pixel RateDifferent | 32.00 GPixel/s | 64.00 GPixel/s |
| Texture RateDifferent | 128.0 GTexel/s | 160.0 GTexel/s |
| FP32 (float)Different | 4.096 TFLOPS | 5.120 TFLOPS |
| FP64 (double)Different | 1,024.0 GFLOPS (1:4) | 640.0 GFLOPS (1:8) |
Board Design
| Feature | AMD Radeon R9 280X | AMD Radeon R9 390 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| Length | 275 mm10.8 inches | 275 mm10.8 inches |
| Height | 109 mm4.3 inches | 109 mm4.3 inches |
| Width | 36 mm1.4 inches | 36 mm1.4 inches |
| TDPDifferent | 250 W | 275 W |
| Suggested PSU | 600 W | 600 W |
| Outputs | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 |
| Power Connectors | 1x 6-pin + 1x 8-pin | 1x 6-pin + 1x 8-pin |
| Board NumberDifferent | C386 | 109-C67157-00_02, C679 |
Graphics Features
| Feature | AMD Radeon R9 280X | AMD Radeon R9 390 |
|---|---|---|
| DirectXDifferent | 12 (11_1) | 12 (12_0) |
| OpenGL | 4.6 | 4.6 |
| OpenCLDifferent | 2.1 (1.2) | 2.1 |
| Vulkan | 1.2.170 | 1.2.170 |
| Shader ModelDifferent | 6.5 (5.1) | 6.5 |
Comparison Summary
7
Specifications Compared
8
Feature Categories
48
Detailed Features
More Comparisons with AMD Radeon R9 280X
Compare AMD Radeon R9 280X with other GPUs of similar performance
AMD Radeon R9 280X vs GeForce GTX 1650
GeForce GTX 1650 Performance116%
GeForce GTX 1650 is 16% faster than AMD Radeon R9 280X
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AMD Radeon R9 280X vs Radeon RX 6400
Radeon RX 6400 Performance114%
Radeon RX 6400 is 14% faster than AMD Radeon R9 280X
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AMD Radeon R9 280X vs Arc A380
Arc A380 Performance113%
Arc A380 is 13% faster than AMD Radeon R9 280X
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AMD Radeon R9 280X vs GeForce GTX 780
GeForce GTX 780 Performance112%
GeForce GTX 780 is 12% faster than AMD Radeon R9 280X
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AMD Radeon R9 280X vs Radeon HD 7970 GHz Edition
Radeon HD 7970 GHz Edition Performance102%
Radeon HD 7970 GHz Edition is 2% faster than AMD Radeon R9 280X
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AMD Radeon R9 280X vs GeForce GTX 590
GeForce GTX 590 Performance101%
GeForce GTX 590 is 1% faster than AMD Radeon R9 280X
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More Comparisons with AMD Radeon R9 390
Compare AMD Radeon R9 390 with other GPUs of similar performance
AMD Radeon R9 390 vs Radeon R9 FURY
Radeon R9 FURY Performance120%
Radeon R9 FURY is 20% faster than AMD Radeon R9 390
Compare Detailed Specs
AMD Radeon R9 390 vs GeForce GTX 980
GeForce GTX 980 Performance118%
GeForce GTX 980 is 18% faster than AMD Radeon R9 390
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AMD Radeon R9 390 vs GeForce GTX 1650 SUPER
GeForce GTX 1650 SUPER Performance117%
GeForce GTX 1650 SUPER is 17% faster than AMD Radeon R9 390
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AMD Radeon R9 390 vs Radeon RX 6500 XT
Radeon RX 6500 XT Performance116%
Radeon RX 6500 XT is 16% faster than AMD Radeon R9 390
Compare Detailed Specs
AMD Radeon R9 390 vs Radeon RX 5500 XT
Radeon RX 5500 XT Performance115%
Radeon RX 5500 XT is 15% faster than AMD Radeon R9 390
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AMD Radeon R9 390 vs Radeon RX 580
Radeon RX 580 Performance114%
Radeon RX 580 is 14% faster than AMD Radeon R9 390
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