GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon HD 7990
196%
196%
AMD Radeon R9 270X
51%
51%
AMD Radeon HD 7990 is approximately 145% faster
Technical Specifications
| Specification | AMD Radeon HD 7990 | AMD Radeon R9 270X |
|---|---|---|
| Graphics ProcessorDifferent | Malta x2 | Curacao |
| CoresDifferent | 2048 x2 | 1280 |
| TMUsDifferent | 128 x2 | 80 |
| ROPsDifferent | 32 x2 | 32 |
| Memory SizeDifferent | 3 GB x2 | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 384 bit x2 | 256 bit |
Graphics Processor
| Feature | AMD Radeon HD 7990 | AMD Radeon R9 270X |
|---|---|---|
| GPU NameDifferent | Malta | Curacao |
| GPU VariantDifferent | Malta XT(215-0849026) | Curacao XT(215-0848004) |
| Architecture | GCN 1.0 | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| TransistorsDifferent | 4,313 million | 2,800 million |
| DensityDifferent | 11.8M / mm² | 13.2M / mm² |
| Die SizeDifferent | 365 mm² | 212 mm² |
| Chip PackageDifferent | N/A | FCBGA-1737 |
Graphics Card
| Feature | AMD Radeon HD 7990 | AMD Radeon R9 270X |
|---|---|---|
| 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 | 199 USD |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 37 in our database | 90 in our database |
Clock Speeds
| Feature | AMD Radeon HD 7990 | AMD Radeon R9 270X |
|---|---|---|
| Base ClockDifferent | 950 MHz | 1000 MHz |
| Boost ClockDifferent | 1000 MHz | 1050 MHz |
| Memory ClockDifferent | 1500 MHz6 Gbps effective | 1400 MHz5.6 Gbps effective |
Memory
| Feature | AMD Radeon HD 7990 | AMD Radeon R9 270X |
|---|---|---|
| Memory SizeDifferent | 3 GB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 384 bit | 256 bit |
| BandwidthDifferent | 288.0 GB/s | 179.2 GB/s |
Render Config
| Feature | AMD Radeon HD 7990 | AMD Radeon R9 270X |
|---|---|---|
| Shading UnitsDifferent | 2048 | 1280 |
| TMUsDifferent | 128 | 80 |
| ROPs | 32 | 32 |
| Compute UnitsDifferent | 32 | 20 |
| L1 Cache | 16 KB (per CU) | 16 KB (per CU) |
| L2 CacheDifferent | 768 KB | 512 KB |
Theoretical Performance
| Feature | AMD Radeon HD 7990 | AMD Radeon R9 270X |
|---|---|---|
| Pixel RateDifferent | 32.00 GPixel/s | 33.60 GPixel/s |
| Texture RateDifferent | 128.0 GTexel/s | 84.00 GTexel/s |
| FP32 (float)Different | 4.096 TFLOPS | 2.688 TFLOPS |
| FP64 (double)Different | 1,024.0 GFLOPS (1:4) | 168.0 GFLOPS (1:16) |
Board Design
| Feature | AMD Radeon HD 7990 | AMD Radeon R9 270X |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 304 mm12 inches | 241 mm9.5 inches |
| HeightDifferent | 106 mm4.2 inches | 109 mm4.3 inches |
| WidthDifferent | 38 mm1.5 inches | 36 mm1.4 inches |
| TDPDifferent | 375 W | 180 W |
| Suggested PSUDifferent | 750 W | 450 W |
| OutputsDifferent | 1x DVI4x mini-DisplayPort 1.2 | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 |
| Power ConnectorsDifferent | 2x 8-pin | 2x 6-pin |
| Board NumberDifferent | 109-C47637-00A_02 | C631, 109-C63257-00A_02, 109-C63257-12_02 |
Graphics Features
| Feature | AMD Radeon HD 7990 | AMD Radeon R9 270X |
|---|---|---|
| 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
48
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 270X
Compare AMD Radeon R9 270X with other GPUs of similar performance
AMD Radeon R9 270X vs GeForce GTX 960
GeForce GTX 960 Performance119%
GeForce GTX 960 is 19% faster than AMD Radeon R9 270X
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AMD Radeon R9 270X vs GeForce GTX 670
GeForce GTX 670 Performance116%
GeForce GTX 670 is 16% faster than AMD Radeon R9 270X
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AMD Radeon R9 270X vs Radeon HD 5970
Radeon HD 5970 Performance105%
Radeon HD 5970 is 5% faster than AMD Radeon R9 270X
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AMD Radeon R9 270X vs GeForce GTX 1630
GeForce GTX 1630 Performance105%
GeForce GTX 1630 is 5% faster than AMD Radeon R9 270X
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AMD Radeon R9 270X vs GeForce GTX 1050
GeForce GTX 1050 Performance103%
GeForce GTX 1050 is 3% faster than AMD Radeon R9 270X
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AMD Radeon R9 270X vs GeForce GTX 760
GeForce GTX 760 Performance102%
GeForce GTX 760 is 2% faster than AMD Radeon R9 270X
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