GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
ATI Radeon HD 4870
143%
143%
AMD Radeon HD 7770 GHz Edition
329%
329%
AMD Radeon HD 7770 GHz Edition is approximately 186% faster
Technical Specifications
| Specification | ATI Radeon HD 4870 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Graphics ProcessorDifferent | RV770 | Cape Verde |
| CoresDifferent | 800 | 640 |
| TMUs | 40 | 40 |
| ROPs | 16 | 16 |
| Memory SizeDifferent | 512 MB | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 256 bit | 128 bit |
Graphics Processor
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| GPU NameDifferent | RV770 | Cape Verde |
| GPU VariantDifferent | RV770 XT(215-0669049) | 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 | HFCBGA-1492 | FCBGA-962 |
Graphics Card
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Release DateDifferent | Jun 25th, 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 | 299 USD | 159 USD |
| Bus InterfaceDifferent | PCIe 2.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 135 in our database | 97 in our database |
Clock Speeds
| Feature | ATI Radeon HD 4870 | 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 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Memory SizeDifferent | 512 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 | 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 | 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 | AMD Radeon HD 7770 GHz Edition |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 241 mm9.5 inches | 210 mm8.3 inches |
| HeightDifferent | 111 mm4.4 inches | N/A |
| WidthDifferent | 40 mm1.6 inches | N/A |
| TDPDifferent | 150 W | 80 W |
| Suggested PSUDifferent | 450 W | 250 W |
| OutputsDifferent | 2x DVI1x S-Video | 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | 2x 6-pin | 1x 6-pin |
| Board NumberDifferent | 109-B50731-10 | 109-C44157-00C, C468 |
Graphics Features
| Feature | ATI Radeon HD 4870 | 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
More Comparisons with ATI Radeon HD 4870
Compare ATI Radeon HD 4870 with other GPUs of similar performance
ATI Radeon HD 4870 vs GeForce GTX 460
GeForce GTX 460 Performance120%
GeForce GTX 460 is 20% faster than ATI Radeon HD 4870
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ATI Radeon HD 4870 vs Radeon HD 4890
Radeon HD 4890 Performance116%
Radeon HD 4890 is 16% faster than ATI Radeon HD 4870
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ATI Radeon HD 4870 vs Radeon HD 6790
Radeon HD 6790 Performance114%
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ATI Radeon HD 4870 vs Radeon HD 5830
Radeon HD 5830 Performance108%
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ATI Radeon HD 4870 vs GeForce GTX 650
GeForce GTX 650 Performance102%
GeForce GTX 650 is 2% faster than ATI Radeon HD 4870
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ATI Radeon HD 4870 vs GeForce GTX 550 Ti
GeForce GTX 550 Ti Performance101%
GeForce GTX 550 Ti is 1% faster than ATI Radeon HD 4870
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More Comparisons with AMD Radeon HD 7770 GHz Edition
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AMD Radeon HD 7770 GHz Edition vs GeForce GTX 650 Ti
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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