GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon R9 270X
51%
51%
AMD Radeon HD 7990
196%
196%
AMD Radeon HD 7990 is approximately 145% faster
Technical Specifications
| Specification | AMD Radeon R9 270X | AMD Radeon HD 7990 |
|---|---|---|
| Graphics ProcessorDifferent | Curacao | Malta x2 |
| CoresDifferent | 1280 | 2048 x2 |
| TMUsDifferent | 80 | 128 x2 |
| ROPsDifferent | 32 | 32 x2 |
| Memory SizeDifferent | 2 GB | 3 GB x2 |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 256 bit | 384 bit x2 |
Graphics Processor
| Feature | AMD Radeon R9 270X | AMD Radeon HD 7990 |
|---|---|---|
| GPU NameDifferent | Curacao | Malta |
| GPU VariantDifferent | Curacao XT(215-0848004) | Malta XT(215-0849026) |
| Architecture | GCN 1.0 | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| TransistorsDifferent | 2,800 million | 4,313 million |
| DensityDifferent | 13.2M / mm² | 11.8M / mm² |
| Die SizeDifferent | 212 mm² | 365 mm² |
| Chip PackageDifferent | FCBGA-1737 | N/A |
Graphics Card
| Feature | AMD Radeon R9 270X | AMD Radeon HD 7990 |
|---|---|---|
| Release DateDifferent | Oct 8th, 2013 | Apr 24th, 2013 |
| GenerationDifferent | Volcanic Islands(R9 200) | Southern Islands(HD 7900) |
| PredecessorDifferent | Sea Islands | Northern Islands |
| SuccessorDifferent | Pirate Islands | Sea Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 199 USD | 999 USD |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 90 in our database | 37 in our database |
Clock Speeds
| Feature | AMD Radeon R9 270X | AMD Radeon HD 7990 |
|---|---|---|
| Base ClockDifferent | 1000 MHz | 950 MHz |
| Boost ClockDifferent | 1050 MHz | 1000 MHz |
| Memory ClockDifferent | 1400 MHz5.6 Gbps effective | 1500 MHz6 Gbps effective |
Memory
| Feature | AMD Radeon R9 270X | AMD Radeon HD 7990 |
|---|---|---|
| Memory SizeDifferent | 2 GB | 3 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 256 bit | 384 bit |
| BandwidthDifferent | 179.2 GB/s | 288.0 GB/s |
Render Config
| Feature | AMD Radeon R9 270X | AMD Radeon HD 7990 |
|---|---|---|
| Shading UnitsDifferent | 1280 | 2048 |
| TMUsDifferent | 80 | 128 |
| ROPs | 32 | 32 |
| Compute UnitsDifferent | 20 | 32 |
| L1 Cache | 16 KB (per CU) | 16 KB (per CU) |
| L2 CacheDifferent | 512 KB | 768 KB |
Theoretical Performance
| Feature | AMD Radeon R9 270X | AMD Radeon HD 7990 |
|---|---|---|
| Pixel RateDifferent | 33.60 GPixel/s | 32.00 GPixel/s |
| Texture RateDifferent | 84.00 GTexel/s | 128.0 GTexel/s |
| FP32 (float)Different | 2.688 TFLOPS | 4.096 TFLOPS |
| FP64 (double)Different | 168.0 GFLOPS (1:16) | 1,024.0 GFLOPS (1:4) |
Board Design
| Feature | AMD Radeon R9 270X | AMD Radeon HD 7990 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 241 mm9.5 inches | 304 mm12 inches |
| HeightDifferent | 109 mm4.3 inches | 106 mm4.2 inches |
| WidthDifferent | 36 mm1.4 inches | 38 mm1.5 inches |
| TDPDifferent | 180 W | 375 W |
| Suggested PSUDifferent | 450 W | 750 W |
| OutputsDifferent | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 | 1x DVI4x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | 2x 6-pin | 2x 8-pin |
| Board NumberDifferent | C631, 109-C63257-00A_02, 109-C63257-12_02 | 109-C47637-00A_02 |
Graphics Features
| Feature | AMD Radeon R9 270X | AMD Radeon HD 7990 |
|---|---|---|
| DirectX | 12 (11_1) | 12 (11_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 (1.2) | 2.1 (1.2) |
| VulkanDifferent | 1.2.170 | 1.2.175 |
| 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 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
Compare Detailed Specs
AMD Radeon R9 270X vs GeForce GTX 670
GeForce GTX 670 Performance116%
GeForce GTX 670 is 16% faster than AMD Radeon R9 270X
Compare Detailed Specs
AMD Radeon R9 270X vs Radeon HD 5970
Radeon HD 5970 Performance105%
Radeon HD 5970 is 5% faster than AMD Radeon R9 270X
Compare Detailed Specs
AMD Radeon R9 270X vs GeForce GTX 1630
GeForce GTX 1630 Performance105%
GeForce GTX 1630 is 5% faster than AMD Radeon R9 270X
Compare Detailed Specs
AMD Radeon R9 270X vs GeForce GTX 1050
GeForce GTX 1050 Performance103%
GeForce GTX 1050 is 3% faster than AMD Radeon R9 270X
Compare Detailed Specs
AMD Radeon R9 270X vs GeForce GTX 760
GeForce GTX 760 Performance102%
GeForce GTX 760 is 2% faster than AMD Radeon R9 270X
Compare Detailed Specs
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
Compare Detailed Specs
AMD Radeon HD 7990 vs Radeon R9 FURY
Radeon R9 FURY Performance112%
Radeon R9 FURY is 12% faster than AMD Radeon HD 7990
Compare Detailed Specs
AMD Radeon HD 7990 vs GeForce GTX 980
GeForce GTX 980 Performance111%
GeForce GTX 980 is 11% faster than AMD Radeon HD 7990
Compare Detailed Specs
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
Compare Detailed Specs
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
Compare Detailed Specs
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
Compare Detailed Specs