GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
ATI Radeon HD 4870
75%
75%
AMD Radeon R9 270X
236%
236%
AMD Radeon R9 270X is approximately 161% faster
Technical Specifications
| Specification | ATI Radeon HD 4870 | AMD Radeon R9 270X |
|---|---|---|
| Graphics ProcessorDifferent | RV770 | Curacao |
| CoresDifferent | 800 | 1280 |
| TMUsDifferent | 40 | 80 |
| 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 R9 270X |
|---|---|---|
| GPU NameDifferent | RV770 | Curacao |
| GPU VariantDifferent | RV770 XT(215-0669049) | Curacao XT(215-0848004) |
| 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 R9 270X |
|---|---|---|
| Release DateDifferent | Jun 25th, 2008 | Oct 8th, 2013 |
| GenerationDifferent | Radeon R700(HD 4800) | Volcanic Islands(R9 200) |
| PredecessorDifferent | Radeon R600 | Sea Islands |
| SuccessorDifferent | Evergreen | Pirate Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 299 USD | 199 USD |
| Bus InterfaceDifferent | PCIe 2.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 135 in our database | 90 in our database |
Clock Speeds
| Feature | ATI Radeon HD 4870 | AMD Radeon R9 270X |
|---|---|---|
| GPU ClockDifferent | 750 MHz | N/A |
| Memory ClockDifferent | 900 MHz3.6 Gbps effective | 1400 MHz5.6 Gbps effective |
| Base ClockDifferent | N/A | 1000 MHz |
| Boost ClockDifferent | N/A | 1050 MHz |
Memory
| Feature | ATI Radeon HD 4870 | AMD Radeon R9 270X |
|---|---|---|
| Memory SizeDifferent | 512 MB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 256 bit | 256 bit |
| BandwidthDifferent | 115.2 GB/s | 179.2 GB/s |
Render Config
| Feature | ATI Radeon HD 4870 | AMD Radeon R9 270X |
|---|---|---|
| Shading UnitsDifferent | 800 | 1280 |
| TMUsDifferent | 40 | 80 |
| ROPsDifferent | 16 | 32 |
| Compute UnitsDifferent | 10 | 20 |
| 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 R9 270X |
|---|---|---|
| Pixel RateDifferent | 12.00 GPixel/s | 33.60 GPixel/s |
| Texture RateDifferent | 30.00 GTexel/s | 84.00 GTexel/s |
| FP32 (float)Different | 1,200.0 GFLOPS | 2.688 TFLOPS |
| FP64 (double)Different | 240.0 GFLOPS (1:5) | 168.0 GFLOPS (1:16) |
Board Design
| Feature | ATI Radeon HD 4870 | AMD Radeon R9 270X |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| Length | 241 mm9.5 inches | 241 mm9.5 inches |
| HeightDifferent | 111 mm4.4 inches | 109 mm4.3 inches |
| WidthDifferent | 40 mm1.6 inches | 36 mm1.4 inches |
| TDPDifferent | 150 W | 180 W |
| Suggested PSU | 450 W | 450 W |
| OutputsDifferent | 2x DVI1x S-Video | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 |
| Power Connectors | 2x 6-pin | 2x 6-pin |
| Board NumberDifferent | 109-B50731-10 | C631, 109-C63257-00A_02, 109-C63257-12_02 |
Graphics Features
| Feature | ATI Radeon HD 4870 | AMD Radeon R9 270X |
|---|---|---|
| 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
49
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
Compare Detailed Specs
ATI Radeon HD 4870 vs Radeon HD 4890
Radeon HD 4890 Performance116%
Radeon HD 4890 is 16% faster than ATI Radeon HD 4870
Compare Detailed Specs
ATI Radeon HD 4870 vs Radeon HD 6790
Radeon HD 6790 Performance114%
Radeon HD 6790 is 14% faster than ATI Radeon HD 4870
Compare Detailed Specs
ATI Radeon HD 4870 vs Radeon HD 5830
Radeon HD 5830 Performance108%
Radeon HD 5830 is 8% faster than ATI Radeon HD 4870
Compare Detailed Specs
ATI Radeon HD 4870 vs GeForce GTX 650
GeForce GTX 650 Performance102%
GeForce GTX 650 is 2% faster than ATI Radeon HD 4870
Compare Detailed Specs
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
Compare Detailed Specs
More Comparisons with AMD Radeon R9 270X
Compare AMD Radeon R9 270X with other GPUs of similar performance
AMD Radeon R9 270X vs GeForce GTX 960
GeForce GTX 960 Performance119%
GeForce GTX 960 is 19% faster than AMD Radeon R9 270X
Compare Detailed Specs
AMD Radeon R9 270X vs GeForce GTX 670
GeForce GTX 670 Performance116%
GeForce GTX 670 is 16% faster than AMD Radeon R9 270X
Compare Detailed Specs
AMD Radeon R9 270X vs Radeon HD 5970
Radeon HD 5970 Performance105%
Radeon HD 5970 is 5% faster than AMD Radeon R9 270X
Compare Detailed Specs
AMD Radeon R9 270X vs GeForce GTX 1630
GeForce GTX 1630 Performance105%
GeForce GTX 1630 is 5% faster than AMD Radeon R9 270X
Compare Detailed Specs
AMD Radeon R9 270X vs GeForce GTX 1050
GeForce GTX 1050 Performance103%
GeForce GTX 1050 is 3% faster than AMD Radeon R9 270X
Compare Detailed Specs
AMD Radeon R9 270X vs GeForce GTX 760
GeForce GTX 760 Performance102%
GeForce GTX 760 is 2% faster than AMD Radeon R9 270X
Compare Detailed Specs