GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon R9 280X
102%
102%
AMD Radeon HD 6990
98%
98%
AMD Radeon R9 280X is approximately 4% faster
Technical Specifications
| Specification | AMD Radeon R9 280X | AMD Radeon HD 6990 |
|---|---|---|
| Graphics ProcessorDifferent | Tahiti | Antilles x2 |
| CoresDifferent | 2048 | 1536 x2 |
| TMUsDifferent | 128 | 96 x2 |
| ROPsDifferent | 32 | 32 x2 |
| Memory SizeDifferent | 3 GB | 2 GB x2 |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 384 bit | 256 bit x2 |
Graphics Processor
| Feature | AMD Radeon R9 280X | AMD Radeon HD 6990 |
|---|---|---|
| GPU NameDifferent | Tahiti | Antilles |
| GPU VariantDifferent | Tahiti XTL(215-0821065) | Antilles XT(215-0807027) |
| ArchitectureDifferent | GCN 1.0 | TeraScale 3 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 28 nm | 40 nm |
| TransistorsDifferent | 4,313 million | 2,640 million |
| DensityDifferent | 12.3M / mm² | 6.8M / mm² |
| Die SizeDifferent | 352 mm² | 389 mm² |
Graphics Card
| Feature | AMD Radeon R9 280X | AMD Radeon HD 6990 |
|---|---|---|
| Release DateDifferent | Oct 8th, 2013 | Mar 8th, 2011 |
| GenerationDifferent | Volcanic Islands(R9 200) | Northern Islands(HD 6900) |
| PredecessorDifferent | Sea Islands | Evergreen |
| SuccessorDifferent | Pirate Islands | Southern Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 299 USD | 699 USD |
| Bus InterfaceDifferent | PCIe 3.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 105 in our database | 47 in our database |
Clock Speeds
| Feature | AMD Radeon R9 280X | AMD Radeon HD 6990 |
|---|---|---|
| Base ClockDifferent | 850 MHz | N/A |
| Boost ClockDifferent | 1000 MHz | N/A |
| Memory ClockDifferent | 1500 MHz6 Gbps effective | 1250 MHz5 Gbps effective |
| GPU ClockDifferent | N/A | 830 MHz |
Memory
| Feature | AMD Radeon R9 280X | AMD Radeon HD 6990 |
|---|---|---|
| Memory SizeDifferent | 3 GB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 384 bit | 256 bit |
| BandwidthDifferent | 288.0 GB/s | 160.0 GB/s |
Render Config
| Feature | AMD Radeon R9 280X | AMD Radeon HD 6990 |
|---|---|---|
| Shading UnitsDifferent | 2048 | 1536 |
| TMUsDifferent | 128 | 96 |
| ROPs | 32 | 32 |
| Compute UnitsDifferent | 32 | 24 |
| L1 CacheDifferent | 16 KB (per CU) | 8 KB (per CU) |
| L2 CacheDifferent | 768 KB | 512 KB |
Theoretical Performance
| Feature | AMD Radeon R9 280X | AMD Radeon HD 6990 |
|---|---|---|
| Pixel RateDifferent | 32.00 GPixel/s | 26.56 GPixel/s |
| Texture RateDifferent | 128.0 GTexel/s | 79.68 GTexel/s |
| FP32 (float)Different | 4.096 TFLOPS | 2.550 TFLOPS |
| FP64 (double)Different | 1,024.0 GFLOPS (1:4) | 637.4 GFLOPS (1:4) |
Board Design
| Feature | AMD Radeon R9 280X | AMD Radeon HD 6990 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 275 mm10.8 inches | 310 mm12.2 inches |
| HeightDifferent | 109 mm4.3 inches | 115 mm4.5 inches |
| WidthDifferent | 36 mm1.4 inches | 40 mm1.6 inches |
| TDPDifferent | 250 W | 375 W |
| Suggested PSUDifferent | 600 W | 750 W |
| OutputsDifferent | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 | 1x DVI4x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | 1x 6-pin + 1x 8-pin | 2x 8-pin |
| Board NumberDifferent | C386 | 109-C20647-00 |
Graphics Features
| Feature | AMD Radeon R9 280X | AMD Radeon HD 6990 |
|---|---|---|
| DirectXDifferent | 12 (11_1) | 11.2 (11_0) |
| OpenGLDifferent | 4.6 | 4.4 |
| OpenCLDifferent | 2.1 (1.2) | 1.2 |
| VulkanDifferent | 1.2.170 | N/A |
| Shader ModelDifferent | 6.5 (5.1) | 5.0 |
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 HD 6990
Compare AMD Radeon HD 6990 with other GPUs of similar performance
AMD Radeon HD 6990 vs GeForce GTX 1650
GeForce GTX 1650 Performance119%
GeForce GTX 1650 is 19% faster than AMD Radeon HD 6990
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AMD Radeon HD 6990 vs Radeon RX 6400
Radeon RX 6400 Performance117%
Radeon RX 6400 is 17% faster than AMD Radeon HD 6990
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AMD Radeon HD 6990 vs Arc A380
Arc A380 Performance115%
Arc A380 is 15% faster than AMD Radeon HD 6990
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AMD Radeon HD 6990 vs GeForce GTX 780
GeForce GTX 780 Performance115%
GeForce GTX 780 is 15% faster than AMD Radeon HD 6990
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AMD Radeon HD 6990 vs Radeon HD 7970 GHz Edition
Radeon HD 7970 GHz Edition Performance104%
Radeon HD 7970 GHz Edition is 4% faster than AMD Radeon HD 6990
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AMD Radeon HD 6990 vs GeForce GTX 590
GeForce GTX 590 Performance104%
GeForce GTX 590 is 4% faster than AMD Radeon HD 6990
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