GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon HD 6990
73%
73%
AMD Radeon R9 390
150%
150%
AMD Radeon R9 390 is approximately 77% faster
Technical Specifications
| Specification | AMD Radeon HD 6990 | AMD Radeon R9 390 |
|---|---|---|
| Graphics ProcessorDifferent | Antilles x2 | Grenada |
| CoresDifferent | 1536 x2 | 2560 |
| TMUsDifferent | 96 x2 | 160 |
| ROPsDifferent | 32 x2 | 64 |
| Memory SizeDifferent | 2 GB x2 | 8 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 256 bit x2 | 512 bit |
Graphics Processor
| Feature | AMD Radeon HD 6990 | AMD Radeon R9 390 |
|---|---|---|
| GPU NameDifferent | Antilles | Grenada |
| GPU VariantDifferent | Antilles XT(215-0807027) | Grenada PRO(215-0880030) |
| ArchitectureDifferent | TeraScale 3 | GCN 2.0 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 40 nm | 28 nm |
| TransistorsDifferent | 2,640 million | 6,200 million |
| DensityDifferent | 6.8M / mm² | 14.2M / mm² |
| Die SizeDifferent | 389 mm² | 438 mm² |
Graphics Card
| Feature | AMD Radeon HD 6990 | AMD Radeon R9 390 |
|---|---|---|
| Release DateDifferent | Mar 8th, 2011 | Jun 18th, 2015 |
| GenerationDifferent | Northern Islands(HD 6900) | Pirate Islands(R9 300) |
| PredecessorDifferent | Evergreen | Volcanic Islands |
| SuccessorDifferent | Southern Islands | Arctic Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 699 USD | 329 USD |
| Bus InterfaceDifferent | PCIe 2.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 47 in our database | 35 in our database |
Clock Speeds
| Feature | AMD Radeon HD 6990 | AMD Radeon R9 390 |
|---|---|---|
| GPU ClockDifferent | 830 MHz | 1000 MHz |
| Memory ClockDifferent | 1250 MHz5 Gbps effective | 1500 MHz6 Gbps effective |
Memory
| Feature | AMD Radeon HD 6990 | AMD Radeon R9 390 |
|---|---|---|
| Memory SizeDifferent | 2 GB | 8 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 256 bit | 512 bit |
| BandwidthDifferent | 160.0 GB/s | 384.0 GB/s |
Render Config
| Feature | AMD Radeon HD 6990 | AMD Radeon R9 390 |
|---|---|---|
| Shading UnitsDifferent | 1536 | 2560 |
| TMUsDifferent | 96 | 160 |
| ROPsDifferent | 32 | 64 |
| Compute UnitsDifferent | 24 | 40 |
| L1 CacheDifferent | 8 KB (per CU) | 16 KB (per CU) |
| L2 CacheDifferent | 512 KB | 1024 KB |
Theoretical Performance
| Feature | AMD Radeon HD 6990 | AMD Radeon R9 390 |
|---|---|---|
| Pixel RateDifferent | 26.56 GPixel/s | 64.00 GPixel/s |
| Texture RateDifferent | 79.68 GTexel/s | 160.0 GTexel/s |
| FP32 (float)Different | 2.550 TFLOPS | 5.120 TFLOPS |
| FP64 (double)Different | 637.4 GFLOPS (1:4) | 640.0 GFLOPS (1:8) |
Board Design
| Feature | AMD Radeon HD 6990 | AMD Radeon R9 390 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 310 mm12.2 inches | 275 mm10.8 inches |
| HeightDifferent | 115 mm4.5 inches | 109 mm4.3 inches |
| WidthDifferent | 40 mm1.6 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-C20647-00 | 109-C67157-00_02, C679 |
Graphics Features
| Feature | AMD Radeon HD 6990 | AMD Radeon R9 390 |
|---|---|---|
| DirectXDifferent | 11.2 (11_0) | 12 (12_0) |
| OpenGLDifferent | 4.4 | 4.6 |
| OpenCLDifferent | 1.2 | 2.1 |
| VulkanDifferent | N/A | 1.2.170 |
| Shader ModelDifferent | 5.0 | 6.5 |
Comparison Summary
7
Specifications Compared
8
Feature Categories
46
Detailed Features
More Comparisons with AMD Radeon HD 6990
Compare AMD Radeon HD 6990 with other GPUs of similar performance
AMD Radeon HD 6990 vs GeForce GTX 1650
GeForce GTX 1650 Performance119%
GeForce GTX 1650 is 19% faster than AMD Radeon HD 6990
Compare Detailed Specs
AMD Radeon HD 6990 vs Radeon RX 6400
Radeon RX 6400 Performance117%
Radeon RX 6400 is 17% faster than AMD Radeon HD 6990
Compare Detailed Specs
AMD Radeon HD 6990 vs Arc A380
Arc A380 Performance115%
Arc A380 is 15% faster than AMD Radeon HD 6990
Compare Detailed Specs
AMD Radeon HD 6990 vs GeForce GTX 780
GeForce GTX 780 Performance115%
GeForce GTX 780 is 15% faster than AMD Radeon HD 6990
Compare Detailed Specs
AMD Radeon HD 6990 vs Radeon HD 7970 GHz Edition
Radeon HD 7970 GHz Edition Performance104%
Radeon HD 7970 GHz Edition is 4% faster than AMD Radeon HD 6990
Compare Detailed Specs
AMD Radeon HD 6990 vs GeForce GTX 590
GeForce GTX 590 Performance104%
GeForce GTX 590 is 4% faster than AMD Radeon HD 6990
Compare Detailed Specs
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
Compare Detailed Specs
AMD Radeon R9 390 vs GeForce GTX 980
GeForce GTX 980 Performance118%
GeForce GTX 980 is 18% faster than AMD Radeon R9 390
Compare Detailed Specs
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
Compare Detailed Specs
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
Compare Detailed Specs
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
Compare Detailed Specs
AMD Radeon R9 390 vs Radeon RX 580
Radeon RX 580 Performance114%
Radeon RX 580 is 14% faster than AMD Radeon R9 390
Compare Detailed Specs