GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon R9 390X
103%
103%
AMD Radeon HD 7990
97%
97%
AMD Radeon R9 390X is approximately 6% faster
Technical Specifications
| Specification | AMD Radeon R9 390X | AMD Radeon HD 7990 |
|---|---|---|
| Graphics ProcessorDifferent | Grenada | Malta x2 |
| CoresDifferent | 2816 | 2048 x2 |
| TMUsDifferent | 176 | 128 x2 |
| ROPsDifferent | 64 | 32 x2 |
| Memory SizeDifferent | 8 GB | 3 GB x2 |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 512 bit | 384 bit x2 |
Graphics Processor
| Feature | AMD Radeon R9 390X | AMD Radeon HD 7990 |
|---|---|---|
| GPU NameDifferent | Grenada | Malta |
| GPU VariantDifferent | Grenada XT(215-0880004) | Malta XT(215-0849026) |
| ArchitectureDifferent | GCN 2.0 | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| TransistorsDifferent | 6,200 million | 4,313 million |
| DensityDifferent | 14.2M / mm² | 11.8M / mm² |
| Die SizeDifferent | 438 mm² | 365 mm² |
Graphics Card
| Feature | AMD Radeon R9 390X | AMD Radeon HD 7990 |
|---|---|---|
| Release DateDifferent | Jun 18th, 2015 | Apr 24th, 2013 |
| GenerationDifferent | Pirate Islands(R9 300) | Southern Islands(HD 7900) |
| PredecessorDifferent | Volcanic Islands | Northern Islands |
| SuccessorDifferent | Arctic Islands | Sea Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 429 USD | 999 USD |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 60 in our database | 37 in our database |
Clock Speeds
| Feature | AMD Radeon R9 390X | AMD Radeon HD 7990 |
|---|---|---|
| GPU ClockDifferent | 1050 MHz | N/A |
| Memory Clock | 1500 MHz6 Gbps effective | 1500 MHz6 Gbps effective |
| Base ClockDifferent | N/A | 950 MHz |
| Boost ClockDifferent | N/A | 1000 MHz |
Memory
| Feature | AMD Radeon R9 390X | AMD Radeon HD 7990 |
|---|---|---|
| Memory SizeDifferent | 8 GB | 3 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 512 bit | 384 bit |
| BandwidthDifferent | 384.0 GB/s | 288.0 GB/s |
Render Config
| Feature | AMD Radeon R9 390X | AMD Radeon HD 7990 |
|---|---|---|
| Shading UnitsDifferent | 2816 | 2048 |
| TMUsDifferent | 176 | 128 |
| ROPsDifferent | 64 | 32 |
| Compute UnitsDifferent | 44 | 32 |
| L1 Cache | 16 KB (per CU) | 16 KB (per CU) |
| L2 CacheDifferent | 1024 KB | 768 KB |
Theoretical Performance
| Feature | AMD Radeon R9 390X | AMD Radeon HD 7990 |
|---|---|---|
| Pixel RateDifferent | 67.20 GPixel/s | 32.00 GPixel/s |
| Texture RateDifferent | 184.8 GTexel/s | 128.0 GTexel/s |
| FP32 (float)Different | 5.914 TFLOPS | 4.096 TFLOPS |
| FP64 (double)Different | 739.2 GFLOPS (1:8) | 1,024.0 GFLOPS (1:4) |
Board Design
| Feature | AMD Radeon R9 390X | AMD Radeon HD 7990 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 275 mm10.8 inches | 304 mm12 inches |
| HeightDifferent | 109 mm4.3 inches | 106 mm4.2 inches |
| WidthDifferent | 36 mm1.4 inches | 38 mm1.5 inches |
| TDPDifferent | 275 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 | 109-C67157-00_02, C679-37 | 109-C47637-00A_02 |
Graphics Features
| Feature | AMD Radeon R9 390X | AMD Radeon HD 7990 |
|---|---|---|
| DirectXDifferent | 12 (12_0) | 12 (11_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCLDifferent | 2.1 | 2.1 (1.2) |
| VulkanDifferent | 1.2.170 | 1.2.175 |
| Shader ModelDifferent | 6.5 | 6.5 (5.1) |
Comparison Summary
7
Specifications Compared
8
Feature Categories
48
Detailed Features
More Comparisons with AMD Radeon R9 390X
Compare AMD Radeon R9 390X with other GPUs of similar performance
AMD Radeon R9 390X vs Radeon R9 FURY X
Radeon R9 FURY X Performance120%
Radeon R9 FURY X is 20% faster than AMD Radeon R9 390X
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AMD Radeon R9 390X vs GeForce GTX 1660
GeForce GTX 1660 Performance119%
GeForce GTX 1660 is 19% faster than AMD Radeon R9 390X
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AMD Radeon R9 390X vs Radeon RX 590
Radeon RX 590 Performance112%
Radeon RX 590 is 12% faster than AMD Radeon R9 390X
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AMD Radeon R9 390X vs Radeon R9 FURY
Radeon R9 FURY Performance110%
Radeon R9 FURY is 10% faster than AMD Radeon R9 390X
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AMD Radeon R9 390X vs GeForce GTX 980
GeForce GTX 980 Performance108%
GeForce GTX 980 is 8% faster than AMD Radeon R9 390X
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AMD Radeon R9 390X vs GeForce GTX 1650 SUPER
GeForce GTX 1650 SUPER Performance107%
GeForce GTX 1650 SUPER is 7% faster than AMD Radeon R9 390X
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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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