GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
ATI Radeon HD 4870 X2
143%
143%
AMD Radeon HD 7770 GHz Edition
187%
187%
AMD Radeon HD 7770 GHz Edition is approximately 44% faster
Technical Specifications
| Specification | ATI Radeon HD 4870 X2 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Graphics ProcessorDifferent | R700 x2 | Cape Verde |
| CoresDifferent | 800 x2 | 640 |
| TMUsDifferent | 40 x2 | 40 |
| ROPsDifferent | 16 x2 | 16 |
| Memory SizeDifferent | 1024 MB x2 | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 256 bit x2 | 128 bit |
Graphics Processor
| Feature | ATI Radeon HD 4870 X2 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| GPU NameDifferent | R700 | Cape Verde |
| GPU VariantDifferent | R700 XT(215-0669045) | Cape Verde XT(215-0825117) |
| ArchitectureDifferent | TeraScale | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 55 nm | 28 nm |
| TransistorsDifferent | 956 million | 1,500 million |
| DensityDifferent | 3.7M / mm² | 12.2M / mm² |
| Die SizeDifferent | 256 mm² | 123 mm² |
| Chip PackageDifferent | N/A | FCBGA-962 |
Graphics Card
| Feature | ATI Radeon HD 4870 X2 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Release DateDifferent | Aug 12th, 2008 | Feb 15th, 2012 |
| GenerationDifferent | Radeon R700(HD 4800) | Southern Islands(HD 7700) |
| PredecessorDifferent | Radeon R600 | Northern Islands |
| SuccessorDifferent | Evergreen | Sea Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 550 USD | 159 USD |
| Bus InterfaceDifferent | PCIe 2.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 79 in our database | 97 in our database |
Clock Speeds
| Feature | ATI Radeon HD 4870 X2 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| GPU ClockDifferent | 750 MHz | 1000 MHz |
| Memory ClockDifferent | 900 MHz3.6 Gbps effective | 1125 MHz4.5 Gbps effective |
Memory
| Feature | ATI Radeon HD 4870 X2 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Memory Size | 1024 MB | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 256 bit | 128 bit |
| BandwidthDifferent | 115.2 GB/s | 72.00 GB/s |
Render Config
| Feature | ATI Radeon HD 4870 X2 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Shading UnitsDifferent | 800 | 640 |
| TMUs | 40 | 40 |
| ROPs | 16 | 16 |
| Compute Units | 10 | 10 |
| L1 Cache | 16 KB (per CU) | 16 KB (per CU) |
| L2 Cache | 256 KB | 256 KB |
Theoretical Performance
| Feature | ATI Radeon HD 4870 X2 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Pixel RateDifferent | 12.00 GPixel/s | 16.00 GPixel/s |
| Texture RateDifferent | 30.00 GTexel/s | 40.00 GTexel/s |
| FP32 (float)Different | 1,200.0 GFLOPS | 1,280.0 GFLOPS |
| FP64 (double)Different | 240.0 GFLOPS (1:5) | 80.00 GFLOPS (1:16) |
Board Design
| Feature | ATI Radeon HD 4870 X2 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 267 mm10.5 inches | 210 mm8.3 inches |
| HeightDifferent | 111 mm4.4 inches | N/A |
| WidthDifferent | 38 mm1.5 inches | N/A |
| TDPDifferent | 286 W | 80 W |
| Suggested PSUDifferent | 600 W | 250 W |
| OutputsDifferent | 2x DVI1x S-Video | 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | 1x 6-pin + 1x 8-pin | 1x 6-pin |
| Board NumberDifferent | 109-B50937-00 | 109-C44157-00C, C468 |
Graphics Features
| Feature | ATI Radeon HD 4870 X2 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| DirectXDifferent | 10.1 (10_1) | 12 (11_1) |
| OpenGLDifferent | 3.3 | 4.6 |
| OpenCLDifferent | 1.1 | 2.1 (1.2) |
| VulkanDifferent | N/A | 1.2.170 |
| Shader ModelDifferent | 4.1 | 6.5 (5.1) |
Comparison Summary
7
Specifications Compared
8
Feature Categories
47
Detailed Features
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ATI Radeon HD 4870 X2 vs GeForce GTX 570
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ATI Radeon HD 4870 X2 vs GeForce GTX 660
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ATI Radeon HD 4870 X2 vs Radeon R7 370
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Radeon HD 6970 Performance115%
Radeon HD 6970 is 15% faster than ATI Radeon HD 4870 X2
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ATI Radeon HD 4870 X2 vs GeForce GTX 480
GeForce GTX 480 Performance110%
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ATI Radeon HD 4870 X2 vs Radeon HD 7850
Radeon HD 7850 Performance108%
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GeForce GTX 650 Ti Performance119%
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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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