GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon HD 7770 GHz Edition
1407%
1407%
AMD Radeon HD 6450
19%
19%
AMD Radeon HD 7770 GHz Edition is approximately 1388% faster
Technical Specifications
| Specification | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 6450 |
|---|---|---|
| Graphics ProcessorDifferent | Cape Verde | Caicos |
| CoresDifferent | 640 | 160 |
| TMUsDifferent | 40 | 8 |
| ROPsDifferent | 16 | 4 |
| Memory SizeDifferent | 1024 MB | 512 MB |
| Memory TypeDifferent | GDDR5 | GDDR3 |
| Bus WidthDifferent | 128 bit | 64 bit |
Graphics Processor
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 6450 |
|---|---|---|
| GPU NameDifferent | Cape Verde | Caicos |
| GPU VariantDifferent | Cape Verde XT(215-0825117) | Caicos PRO |
| ArchitectureDifferent | GCN 1.0 | TeraScale 2 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 28 nm | 40 nm |
| TransistorsDifferent | 1,500 million | 370 million |
| DensityDifferent | 12.2M / mm² | 5.5M / mm² |
| Die SizeDifferent | 123 mm² | 67 mm² |
| Chip PackageDifferent | FCBGA-962 | FCBGA-631 |
Graphics Card
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 6450 |
|---|---|---|
| Release DateDifferent | Feb 15th, 2012 | Apr 7th, 2011 |
| GenerationDifferent | Southern Islands(HD 7700) | Northern Islands(HD 6400) |
| PredecessorDifferent | Northern Islands | Evergreen |
| SuccessorDifferent | Sea Islands | Southern Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 159 USD | 55 USD |
| Bus InterfaceDifferent | PCIe 3.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 97 in our database | 14 in our database |
Clock Speeds
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 6450 |
|---|---|---|
| GPU ClockDifferent | 1000 MHz | 625 MHz |
| Memory ClockDifferent | 1125 MHz4.5 Gbps effective | 500 MHz1000 Mbps effective |
Memory
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 6450 |
|---|---|---|
| Memory SizeDifferent | 1024 MB | 512 MB |
| Memory TypeDifferent | GDDR5 | GDDR3 |
| Memory BusDifferent | 128 bit | 64 bit |
| BandwidthDifferent | 72.00 GB/s | 8.000 GB/s |
Render Config
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 6450 |
|---|---|---|
| Shading UnitsDifferent | 640 | 160 |
| TMUsDifferent | 40 | 8 |
| ROPsDifferent | 16 | 4 |
| Compute UnitsDifferent | 10 | 2 |
| L1 CacheDifferent | 16 KB (per CU) | 8 KB (per CU) |
| L2 CacheDifferent | 256 KB | 128 KB |
Theoretical Performance
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 6450 |
|---|---|---|
| Pixel RateDifferent | 16.00 GPixel/s | 2.500 GPixel/s |
| Texture RateDifferent | 40.00 GTexel/s | 5.000 GTexel/s |
| FP32 (float)Different | 1,280.0 GFLOPS | 200.0 GFLOPS |
| FP64 (double)Different | 80.00 GFLOPS (1:16) | N/A |
Board Design
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 6450 |
|---|---|---|
| Slot WidthDifferent | Dual-slot | Single-slot |
| LengthDifferent | 210 mm8.3 inches | 168 mm6.6 inches |
| TDPDifferent | 80 W | 18 W |
| Suggested PSUDifferent | 250 W | 200 W |
| OutputsDifferent | 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 | 1x DVI1x HDMI 1.3a1x VGA |
| Power ConnectorsDifferent | 1x 6-pin | None |
| Board NumberDifferent | 109-C44157-00C, C468 | 109-C26037-00A |
Graphics Features
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 6450 |
|---|---|---|
| DirectXDifferent | 12 (11_1) | 11.2 (11_0) |
| OpenGLDifferent | 4.6 | 4.4 |
| OpenCLDifferent | 2.1 (1.2) | 1.2 |
| VulkanDifferent | 1.2.170 | N/A |
| Shader ModelDifferent | 6.5 (5.1) | 5.0 |
Comparison Summary
7
Specifications Compared
8
Feature Categories
45
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 HD 6450
Compare AMD Radeon HD 6450 with other GPUs of similar performance
AMD Radeon HD 6450 vs GeForce GT 520
GeForce GT 520 Performance106%
GeForce GT 520 is 6% faster than AMD Radeon HD 6450
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AMD Radeon HD 6450 vs Radeon HD 6450
Radeon HD 6450 Performance100%
Radeon HD 6450 is 0% slower than AMD Radeon HD 6450
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AMD Radeon HD 6450 vs Radeon HD 5450
Radeon HD 5450 Performance85%
Radeon HD 5450 is 15% slower than AMD Radeon HD 6450
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AMD Radeon HD 6450 vs Radeon HD 6450
Radeon HD 6450 Performance100%
Radeon HD 6450 is 0% slower than AMD Radeon HD 6450
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AMD Radeon HD 6450 vs Radeon HD 6450
Radeon HD 6450 Performance100%
Radeon HD 6450 is 0% slower than AMD Radeon HD 6450
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