GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon HD 7770 GHz Edition
100%
100%
AMD Radeon HD 7970 GHz Edition
267%
267%
AMD Radeon HD 7970 GHz Edition is approximately 167% faster
Technical Specifications
| Specification | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 7970 GHz Edition |
|---|---|---|
| Graphics ProcessorDifferent | Cape Verde | Tahiti |
| CoresDifferent | 640 | 2048 |
| TMUsDifferent | 40 | 128 |
| ROPsDifferent | 16 | 32 |
| Memory SizeDifferent | 1024 MB | 3 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 128 bit | 384 bit |
Graphics Processor
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 7970 GHz Edition |
|---|---|---|
| GPU NameDifferent | Cape Verde | Tahiti |
| GPU VariantDifferent | Cape Verde XT(215-0825117) | Tahiti XT2(215-0821065) |
| Architecture | GCN 1.0 | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| TransistorsDifferent | 1,500 million | 4,313 million |
| DensityDifferent | 12.2M / mm² | 12.3M / mm² |
| Die SizeDifferent | 123 mm² | 352 mm² |
| Chip PackageDifferent | FCBGA-962 | N/A |
Graphics Card
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 7970 GHz Edition |
|---|---|---|
| Release DateDifferent | Feb 15th, 2012 | Jun 22nd, 2012 |
| GenerationDifferent | Southern Islands(HD 7700) | Southern Islands(HD 7900) |
| Predecessor | Northern Islands | Northern Islands |
| Successor | Sea Islands | Sea Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 159 USD | 499 USD |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 97 in our database | 191 in our database |
Clock Speeds
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 7970 GHz Edition |
|---|---|---|
| GPU ClockDifferent | 1000 MHz | N/A |
| Memory ClockDifferent | 1125 MHz4.5 Gbps effective | 1500 MHz6 Gbps effective |
| Base ClockDifferent | N/A | 1000 MHz |
| Boost ClockDifferent | N/A | 1050 MHz |
Memory
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 7970 GHz Edition |
|---|---|---|
| Memory SizeDifferent | 1024 MB | 3 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 128 bit | 384 bit |
| BandwidthDifferent | 72.00 GB/s | 288.0 GB/s |
Render Config
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 7970 GHz Edition |
|---|---|---|
| Shading UnitsDifferent | 640 | 2048 |
| TMUsDifferent | 40 | 128 |
| ROPsDifferent | 16 | 32 |
| Compute UnitsDifferent | 10 | 32 |
| L1 Cache | 16 KB (per CU) | 16 KB (per CU) |
| L2 CacheDifferent | 256 KB | 768 KB |
Theoretical Performance
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 7970 GHz Edition |
|---|---|---|
| Pixel RateDifferent | 16.00 GPixel/s | 33.60 GPixel/s |
| Texture RateDifferent | 40.00 GTexel/s | 134.4 GTexel/s |
| FP32 (float)Different | 1,280.0 GFLOPS | 4.301 TFLOPS |
| FP64 (double)Different | 80.00 GFLOPS (1:16) | 1,075.2 GFLOPS (1:4) |
Board Design
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 7970 GHz Edition |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 210 mm8.3 inches | 275 mm10.8 inches |
| TDPDifferent | 80 W | 300 W |
| Suggested PSUDifferent | 250 W | 700 W |
| Outputs | 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 | 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | 1x 6-pin | 1x 6-pin + 1x 8-pin |
| Board NumberDifferent | 109-C44157-00C, C468 | 109-C38637-00 |
| HeightDifferent | N/A | 111 mm4.4 inches |
| WidthDifferent | N/A | 38 mm1.5 inches |
Graphics Features
| Feature | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 7970 GHz Edition |
|---|---|---|
| DirectX | 12 (11_1) | 12 (11_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 (1.2) | 2.1 (1.2) |
| Vulkan | 1.2.170 | 1.2.170 |
| Shader Model | 6.5 (5.1) | 6.5 (5.1) |
Comparison Summary
7
Specifications Compared
8
Feature Categories
49
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 7970 GHz Edition
Compare AMD Radeon HD 7970 GHz Edition with other GPUs of similar performance
AMD Radeon HD 7970 GHz Edition vs GeForce GTX 1650
GeForce GTX 1650 Performance115%
GeForce GTX 1650 is 15% faster than AMD Radeon HD 7970 GHz Edition
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AMD Radeon HD 7970 GHz Edition vs Radeon RX 6400
Radeon RX 6400 Performance112%
Radeon RX 6400 is 12% faster than AMD Radeon HD 7970 GHz Edition
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AMD Radeon HD 7970 GHz Edition vs Arc A380
Arc A380 Performance111%
Arc A380 is 11% faster than AMD Radeon HD 7970 GHz Edition
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AMD Radeon HD 7970 GHz Edition vs GeForce GTX 780
GeForce GTX 780 Performance111%
GeForce GTX 780 is 11% faster than AMD Radeon HD 7970 GHz Edition
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AMD Radeon HD 7970 GHz Edition vs Radeon HD 7970 GHz Edition
Radeon HD 7970 GHz Edition Performance100%
Radeon HD 7970 GHz Edition is 0% slower than AMD Radeon HD 7970 GHz Edition
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AMD Radeon HD 7970 GHz Edition vs GeForce GTX 590
GeForce GTX 590 Performance100%
GeForce GTX 590 is 0% slower than AMD Radeon HD 7970 GHz Edition
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