GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
ATI Radeon HD 4870
93%
93%
AMD Radeon HD 7850
190%
190%
AMD Radeon HD 7850 is approximately 97% faster
Technical Specifications
| Specification | ATI Radeon HD 4870 | AMD Radeon HD 7850 |
|---|---|---|
| Graphics ProcessorDifferent | RV770 | Pitcairn |
| CoresDifferent | 800 | 1024 |
| TMUsDifferent | 40 | 64 |
| ROPsDifferent | 16 | 32 |
| Memory SizeDifferent | 512 MB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 256 bit | 256 bit |
Graphics Processor
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 7850 |
|---|---|---|
| GPU NameDifferent | RV770 | Pitcairn |
| GPU VariantDifferent | RV770 XT(215-0669049) | Pitcairn PRO(215-0828062) |
| ArchitectureDifferent | TeraScale | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 55 nm | 28 nm |
| TransistorsDifferent | 956 million | 2,800 million |
| DensityDifferent | 3.7M / mm² | 13.2M / mm² |
| Die SizeDifferent | 256 mm² | 212 mm² |
| Chip PackageDifferent | HFCBGA-1492 | FCBGA-1737 |
Graphics Card
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 7850 |
|---|---|---|
| Release DateDifferent | Jun 25th, 2008 | Mar 5th, 2012 |
| GenerationDifferent | Radeon R700(HD 4800) | Southern Islands(HD 7800) |
| PredecessorDifferent | Radeon R600 | Northern Islands |
| SuccessorDifferent | Evergreen | Sea Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 299 USD | 249 USD |
| Bus InterfaceDifferent | PCIe 2.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 135 in our database | 71 in our database |
Clock Speeds
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 7850 |
|---|---|---|
| GPU ClockDifferent | 750 MHz | 860 MHz |
| Memory ClockDifferent | 900 MHz3.6 Gbps effective | 1200 MHz4.8 Gbps effective |
Memory
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 7850 |
|---|---|---|
| Memory SizeDifferent | 512 MB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 256 bit | 256 bit |
| BandwidthDifferent | 115.2 GB/s | 153.6 GB/s |
Render Config
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 7850 |
|---|---|---|
| Shading UnitsDifferent | 800 | 1024 |
| TMUsDifferent | 40 | 64 |
| ROPsDifferent | 16 | 32 |
| Compute UnitsDifferent | 10 | 16 |
| L1 Cache | 16 KB (per CU) | 16 KB (per CU) |
| L2 CacheDifferent | 256 KB | 512 KB |
Theoretical Performance
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 7850 |
|---|---|---|
| Pixel RateDifferent | 12.00 GPixel/s | 27.52 GPixel/s |
| Texture RateDifferent | 30.00 GTexel/s | 55.04 GTexel/s |
| FP32 (float)Different | 1,200.0 GFLOPS | 1.761 TFLOPS |
| FP64 (double)Different | 240.0 GFLOPS (1:5) | 110.1 GFLOPS (1:16) |
Board Design
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 7850 |
|---|---|---|
| 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 | 130 W |
| Suggested PSUDifferent | 450 W | 300 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-C40147-00, 109-C40337-00A |
Graphics Features
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 7850 |
|---|---|---|
| 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%
Radeon HD 6790 is 14% faster than ATI Radeon HD 4870
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ATI Radeon HD 4870 vs Radeon HD 5830
Radeon HD 5830 Performance108%
Radeon HD 5830 is 8% faster than ATI Radeon HD 4870
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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 7850
Compare AMD Radeon HD 7850 with other GPUs of similar performance
AMD Radeon HD 7850 vs GeForce GTX 950
GeForce GTX 950 Performance120%
GeForce GTX 950 is 20% faster than AMD Radeon HD 7850
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AMD Radeon HD 7850 vs Radeon RX 560
Radeon RX 560 Performance113%
Radeon RX 560 is 13% faster than AMD Radeon HD 7850
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AMD Radeon HD 7850 vs GeForce GTX 570
GeForce GTX 570 Performance111%
GeForce GTX 570 is 11% faster than AMD Radeon HD 7850
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AMD Radeon HD 7850 vs GeForce GTX 660
GeForce GTX 660 Performance111%
GeForce GTX 660 is 11% faster than AMD Radeon HD 7850
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AMD Radeon HD 7850 vs Radeon R7 370
Radeon R7 370 Performance110%
Radeon R7 370 is 10% faster than AMD Radeon HD 7850
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AMD Radeon HD 7850 vs Radeon HD 6970
Radeon HD 6970 Performance106%
Radeon HD 6970 is 6% faster than AMD Radeon HD 7850
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