GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon HD 7770 GHz Edition
76%
76%
AMD Radeon R9 390
385%
385%
AMD Radeon R9 390 is approximately 309% faster
Technical Specifications
| Specification | AMD Radeon HD 7770 GHz Edition | AMD Radeon R9 390 |
|---|---|---|
| Graphics ProcessorDifferent | Cape Verde | Grenada |
| CoresDifferent | 640 | 2560 |
| TMUsDifferent | 40 | 160 |
| ROPsDifferent | 16 | 64 |
| Memory SizeDifferent | 1024 MB | 8 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 128 bit | 512 bit |
Graphics Processor
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon R9 390 |
|---|---|---|
| GPU NameDifferent | Cape Verde | Grenada |
| GPU VariantDifferent | Cape Verde XT(215-0825117) | Grenada PRO(215-0880030) |
| ArchitectureDifferent | GCN 1.0 | GCN 2.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| TransistorsDifferent | 1,500 million | 6,200 million |
| DensityDifferent | 12.2M / mm² | 14.2M / mm² |
| Die SizeDifferent | 123 mm² | 438 mm² |
| Chip PackageDifferent | FCBGA-962 | N/A |
Graphics Card
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon R9 390 |
|---|---|---|
| Release DateDifferent | Feb 15th, 2012 | Jun 18th, 2015 |
| GenerationDifferent | Southern Islands(HD 7700) | Pirate Islands(R9 300) |
| PredecessorDifferent | Northern Islands | Volcanic Islands |
| SuccessorDifferent | Sea Islands | Arctic Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 159 USD | 329 USD |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 97 in our database | 35 in our database |
Clock Speeds
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon R9 390 |
|---|---|---|
| GPU Clock | 1000 MHz | 1000 MHz |
| Memory ClockDifferent | 1125 MHz4.5 Gbps effective | 1500 MHz6 Gbps effective |
Memory
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon R9 390 |
|---|---|---|
| Memory SizeDifferent | 1024 MB | 8 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 128 bit | 512 bit |
| BandwidthDifferent | 72.00 GB/s | 384.0 GB/s |
Render Config
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon R9 390 |
|---|---|---|
| Shading UnitsDifferent | 640 | 2560 |
| TMUsDifferent | 40 | 160 |
| ROPsDifferent | 16 | 64 |
| Compute UnitsDifferent | 10 | 40 |
| L1 Cache | 16 KB (per CU) | 16 KB (per CU) |
| L2 CacheDifferent | 256 KB | 1024 KB |
Theoretical Performance
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon R9 390 |
|---|---|---|
| Pixel RateDifferent | 16.00 GPixel/s | 64.00 GPixel/s |
| Texture RateDifferent | 40.00 GTexel/s | 160.0 GTexel/s |
| FP32 (float)Different | 1,280.0 GFLOPS | 5.120 TFLOPS |
| FP64 (double)Different | 80.00 GFLOPS (1:16) | 640.0 GFLOPS (1:8) |
Board Design
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon R9 390 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 210 mm8.3 inches | 275 mm10.8 inches |
| TDPDifferent | 80 W | 275 W |
| Suggested PSUDifferent | 250 W | 600 W |
| OutputsDifferent | 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 |
| Power ConnectorsDifferent | 1x 6-pin | 1x 6-pin + 1x 8-pin |
| Board NumberDifferent | 109-C44157-00C, C468 | 109-C67157-00_02, C679 |
| HeightDifferent | N/A | 109 mm4.3 inches |
| WidthDifferent | N/A | 36 mm1.4 inches |
Graphics Features
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon R9 390 |
|---|---|---|
| DirectXDifferent | 12 (11_1) | 12 (12_0) |
| OpenGL | 4.6 | 4.6 |
| OpenCLDifferent | 2.1 (1.2) | 2.1 |
| Vulkan | 1.2.170 | 1.2.170 |
| Shader ModelDifferent | 6.5 (5.1) | 6.5 |
Comparison Summary
7
Specifications Compared
8
Feature Categories
47
Detailed Features
More Comparisons with AMD Radeon HD 7770 GHz Edition
Compare AMD Radeon HD 7770 GHz Edition with other GPUs of similar performance
AMD Radeon HD 7770 GHz Edition vs GeForce GTX 650 Ti
GeForce GTX 650 Ti Performance119%
GeForce GTX 650 Ti is 19% faster than AMD Radeon HD 7770 GHz Edition
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AMD Radeon HD 7770 GHz Edition vs Radeon HD 5850
Radeon HD 5850 Performance117%
Radeon HD 5850 is 17% faster than AMD Radeon HD 7770 GHz Edition
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AMD Radeon HD 7770 GHz Edition vs GeForce GTX 285
GeForce GTX 285 Performance109%
GeForce GTX 285 is 9% faster than AMD Radeon HD 7770 GHz Edition
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AMD Radeon HD 7770 GHz Edition vs Radeon HD 6850
Radeon HD 6850 Performance107%
Radeon HD 6850 is 7% faster than AMD Radeon HD 7770 GHz Edition
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AMD Radeon HD 7770 GHz Edition vs GeForce GTX 280
GeForce GTX 280 Performance100%
GeForce GTX 280 is 0% slower than AMD Radeon HD 7770 GHz Edition
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AMD Radeon HD 7770 GHz Edition vs Radeon HD 7770 GHz Edition
Radeon HD 7770 GHz Edition Performance100%
Radeon HD 7770 GHz Edition is 0% slower than AMD Radeon HD 7770 GHz Edition
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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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