GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon HD 7990
143%
143%
AMD Radeon R9 280X
70%
70%
AMD Radeon HD 7990 is approximately 73% faster
Technical Specifications
| Specification | AMD Radeon HD 7990 | AMD Radeon R9 280X |
|---|---|---|
| Graphics ProcessorDifferent | Malta x2 | Tahiti |
| CoresDifferent | 2048 x2 | 2048 |
| TMUsDifferent | 128 x2 | 128 |
| ROPsDifferent | 32 x2 | 32 |
| Memory SizeDifferent | 3 GB x2 | 3 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 384 bit x2 | 384 bit |
Graphics Processor
| Feature | AMD Radeon HD 7990 | AMD Radeon R9 280X |
|---|---|---|
| GPU NameDifferent | Malta | Tahiti |
| GPU VariantDifferent | Malta XT(215-0849026) | Tahiti XTL(215-0821065) |
| Architecture | GCN 1.0 | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| Transistors | 4,313 million | 4,313 million |
| DensityDifferent | 11.8M / mm² | 12.3M / mm² |
| Die SizeDifferent | 365 mm² | 352 mm² |
Graphics Card
| Feature | AMD Radeon HD 7990 | AMD Radeon R9 280X |
|---|---|---|
| Release DateDifferent | Apr 24th, 2013 | Oct 8th, 2013 |
| GenerationDifferent | Southern Islands(HD 7900) | Volcanic Islands(R9 200) |
| PredecessorDifferent | Northern Islands | Sea Islands |
| SuccessorDifferent | Sea Islands | Pirate Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 999 USD | 299 USD |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 37 in our database | 105 in our database |
Clock Speeds
| Feature | AMD Radeon HD 7990 | AMD Radeon R9 280X |
|---|---|---|
| Base ClockDifferent | 950 MHz | 850 MHz |
| Boost Clock | 1000 MHz | 1000 MHz |
| Memory Clock | 1500 MHz6 Gbps effective | 1500 MHz6 Gbps effective |
Memory
| Feature | AMD Radeon HD 7990 | AMD Radeon R9 280X |
|---|---|---|
| Memory Size | 3 GB | 3 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 384 bit | 384 bit |
| Bandwidth | 288.0 GB/s | 288.0 GB/s |
Render Config
| Feature | AMD Radeon HD 7990 | AMD Radeon R9 280X |
|---|---|---|
| Shading Units | 2048 | 2048 |
| TMUs | 128 | 128 |
| ROPs | 32 | 32 |
| Compute Units | 32 | 32 |
| L1 Cache | 16 KB (per CU) | 16 KB (per CU) |
| L2 Cache | 768 KB | 768 KB |
Theoretical Performance
| Feature | AMD Radeon HD 7990 | AMD Radeon R9 280X |
|---|---|---|
| Pixel Rate | 32.00 GPixel/s | 32.00 GPixel/s |
| Texture Rate | 128.0 GTexel/s | 128.0 GTexel/s |
| FP32 (float) | 4.096 TFLOPS | 4.096 TFLOPS |
| FP64 (double) | 1,024.0 GFLOPS (1:4) | 1,024.0 GFLOPS (1:4) |
Board Design
| Feature | AMD Radeon HD 7990 | AMD Radeon R9 280X |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 304 mm12 inches | 275 mm10.8 inches |
| HeightDifferent | 106 mm4.2 inches | 109 mm4.3 inches |
| WidthDifferent | 38 mm1.5 inches | 36 mm1.4 inches |
| TDPDifferent | 375 W | 250 W |
| Suggested PSUDifferent | 750 W | 600 W |
| OutputsDifferent | 1x DVI4x mini-DisplayPort 1.2 | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 |
| Power ConnectorsDifferent | 2x 8-pin | 1x 6-pin + 1x 8-pin |
| Board NumberDifferent | 109-C47637-00A_02 | C386 |
Graphics Features
| Feature | AMD Radeon HD 7990 | AMD Radeon R9 280X |
|---|---|---|
| DirectX | 12 (11_1) | 12 (11_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 (1.2) | 2.1 (1.2) |
| VulkanDifferent | 1.2.175 | 1.2.170 |
| Shader Model | 6.5 (5.1) | 6.5 (5.1) |
Comparison Summary
7
Specifications Compared
8
Feature Categories
47
Detailed Features
More Comparisons with AMD Radeon HD 7990
Compare AMD Radeon HD 7990 with other GPUs of similar performance
AMD Radeon HD 7990 vs Radeon RX 590
Radeon RX 590 Performance115%
Radeon RX 590 is 15% faster than AMD Radeon HD 7990
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AMD Radeon HD 7990 vs Radeon R9 FURY
Radeon R9 FURY Performance112%
Radeon R9 FURY is 12% faster than AMD Radeon HD 7990
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AMD Radeon HD 7990 vs GeForce GTX 980
GeForce GTX 980 Performance111%
GeForce GTX 980 is 11% faster than AMD Radeon HD 7990
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AMD Radeon HD 7990 vs GeForce GTX 1650 SUPER
GeForce GTX 1650 SUPER Performance110%
GeForce GTX 1650 SUPER is 10% faster than AMD Radeon HD 7990
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AMD Radeon HD 7990 vs Radeon RX 6500 XT
Radeon RX 6500 XT Performance109%
Radeon RX 6500 XT is 9% faster than AMD Radeon HD 7990
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AMD Radeon HD 7990 vs Radeon RX 5500 XT
Radeon RX 5500 XT Performance108%
Radeon RX 5500 XT is 8% faster than AMD Radeon HD 7990
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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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