GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon HD 7990
107%
107%
AMD Radeon R9 390
103%
103%
AMD Radeon HD 7990 is approximately 4% faster
Technical Specifications
| Specification | AMD Radeon HD 7990 | AMD Radeon R9 390 |
|---|---|---|
| Graphics ProcessorDifferent | Malta x2 | Grenada |
| CoresDifferent | 2048 x2 | 2560 |
| TMUsDifferent | 128 x2 | 160 |
| ROPsDifferent | 32 x2 | 64 |
| Memory SizeDifferent | 3 GB x2 | 8 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 384 bit x2 | 512 bit |
Graphics Processor
| Feature | AMD Radeon HD 7990 | AMD Radeon R9 390 |
|---|---|---|
| GPU NameDifferent | Malta | Grenada |
| GPU VariantDifferent | Malta XT(215-0849026) | Grenada PRO(215-0880030) |
| ArchitectureDifferent | GCN 1.0 | GCN 2.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| TransistorsDifferent | 4,313 million | 6,200 million |
| DensityDifferent | 11.8M / mm² | 14.2M / mm² |
| Die SizeDifferent | 365 mm² | 438 mm² |
Graphics Card
| Feature | AMD Radeon HD 7990 | AMD Radeon R9 390 |
|---|---|---|
| Release DateDifferent | Apr 24th, 2013 | Jun 18th, 2015 |
| GenerationDifferent | Southern Islands(HD 7900) | Pirate Islands(R9 300) |
| PredecessorDifferent | Northern Islands | Volcanic Islands |
| SuccessorDifferent | Sea Islands | Arctic Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 999 USD | 329 USD |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 37 in our database | 35 in our database |
Clock Speeds
| Feature | AMD Radeon HD 7990 | AMD Radeon R9 390 |
|---|---|---|
| Base ClockDifferent | 950 MHz | N/A |
| Boost ClockDifferent | 1000 MHz | N/A |
| Memory Clock | 1500 MHz6 Gbps effective | 1500 MHz6 Gbps effective |
| GPU ClockDifferent | N/A | 1000 MHz |
Memory
| Feature | AMD Radeon HD 7990 | AMD Radeon R9 390 |
|---|---|---|
| Memory SizeDifferent | 3 GB | 8 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 384 bit | 512 bit |
| BandwidthDifferent | 288.0 GB/s | 384.0 GB/s |
Render Config
| Feature | AMD Radeon HD 7990 | AMD Radeon R9 390 |
|---|---|---|
| Shading UnitsDifferent | 2048 | 2560 |
| TMUsDifferent | 128 | 160 |
| ROPsDifferent | 32 | 64 |
| Compute UnitsDifferent | 32 | 40 |
| L1 Cache | 16 KB (per CU) | 16 KB (per CU) |
| L2 CacheDifferent | 768 KB | 1024 KB |
Theoretical Performance
| Feature | AMD Radeon HD 7990 | AMD Radeon R9 390 |
|---|---|---|
| Pixel RateDifferent | 32.00 GPixel/s | 64.00 GPixel/s |
| Texture RateDifferent | 128.0 GTexel/s | 160.0 GTexel/s |
| FP32 (float)Different | 4.096 TFLOPS | 5.120 TFLOPS |
| FP64 (double)Different | 1,024.0 GFLOPS (1:4) | 640.0 GFLOPS (1:8) |
Board Design
| Feature | AMD Radeon HD 7990 | AMD Radeon R9 390 |
|---|---|---|
| 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 | 275 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 | 109-C67157-00_02, C679 |
Graphics Features
| Feature | AMD Radeon HD 7990 | AMD Radeon R9 390 |
|---|---|---|
| DirectXDifferent | 12 (11_1) | 12 (12_0) |
| OpenGL | 4.6 | 4.6 |
| OpenCLDifferent | 2.1 (1.2) | 2.1 |
| VulkanDifferent | 1.2.175 | 1.2.170 |
| Shader ModelDifferent | 6.5 (5.1) | 6.5 |
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 390
Compare AMD Radeon R9 390 with other GPUs of similar performance
AMD Radeon R9 390 vs Radeon R9 FURY
Radeon R9 FURY Performance120%
Radeon R9 FURY is 20% faster than AMD Radeon R9 390
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AMD Radeon R9 390 vs GeForce GTX 980
GeForce GTX 980 Performance118%
GeForce GTX 980 is 18% faster than AMD Radeon R9 390
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AMD Radeon R9 390 vs GeForce GTX 1650 SUPER
GeForce GTX 1650 SUPER Performance117%
GeForce GTX 1650 SUPER is 17% faster than AMD Radeon R9 390
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AMD Radeon R9 390 vs Radeon RX 6500 XT
Radeon RX 6500 XT Performance116%
Radeon RX 6500 XT is 16% faster than AMD Radeon R9 390
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AMD Radeon R9 390 vs Radeon RX 5500 XT
Radeon RX 5500 XT Performance115%
Radeon RX 5500 XT is 15% faster than AMD Radeon R9 390
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AMD Radeon R9 390 vs Radeon RX 580
Radeon RX 580 Performance114%
Radeon RX 580 is 14% faster than AMD Radeon R9 390
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