GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
ATI Radeon HD 4870
54%
54%
AMD Radeon HD 7970 GHz Edition
329%
329%
AMD Radeon HD 7970 GHz Edition is approximately 275% faster
Technical Specifications
| Specification | ATI Radeon HD 4870 | AMD Radeon HD 7970 GHz Edition |
|---|---|---|
| Graphics ProcessorDifferent | RV770 | Tahiti |
| CoresDifferent | 800 | 2048 |
| TMUsDifferent | 40 | 128 |
| ROPsDifferent | 16 | 32 |
| Memory SizeDifferent | 512 MB | 3 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 256 bit | 384 bit |
Graphics Processor
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 7970 GHz Edition |
|---|---|---|
| GPU NameDifferent | RV770 | Tahiti |
| GPU VariantDifferent | RV770 XT(215-0669049) | Tahiti XT2(215-0821065) |
| ArchitectureDifferent | TeraScale | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 55 nm | 28 nm |
| TransistorsDifferent | 956 million | 4,313 million |
| DensityDifferent | 3.7M / mm² | 12.3M / mm² |
| Die SizeDifferent | 256 mm² | 352 mm² |
| Chip PackageDifferent | HFCBGA-1492 | N/A |
Graphics Card
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 7970 GHz Edition |
|---|---|---|
| Release DateDifferent | Jun 25th, 2008 | Jun 22nd, 2012 |
| GenerationDifferent | Radeon R700(HD 4800) | Southern Islands(HD 7900) |
| PredecessorDifferent | Radeon R600 | Northern Islands |
| SuccessorDifferent | Evergreen | Sea Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 299 USD | 499 USD |
| Bus InterfaceDifferent | PCIe 2.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 135 in our database | 191 in our database |
Clock Speeds
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 7970 GHz Edition |
|---|---|---|
| GPU ClockDifferent | 750 MHz | N/A |
| Memory ClockDifferent | 900 MHz3.6 Gbps effective | 1500 MHz6 Gbps effective |
| Base ClockDifferent | N/A | 1000 MHz |
| Boost ClockDifferent | N/A | 1050 MHz |
Memory
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 7970 GHz Edition |
|---|---|---|
| Memory SizeDifferent | 512 MB | 3 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 256 bit | 384 bit |
| BandwidthDifferent | 115.2 GB/s | 288.0 GB/s |
Render Config
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 7970 GHz Edition |
|---|---|---|
| Shading UnitsDifferent | 800 | 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 | ATI Radeon HD 4870 | AMD Radeon HD 7970 GHz Edition |
|---|---|---|
| Pixel RateDifferent | 12.00 GPixel/s | 33.60 GPixel/s |
| Texture RateDifferent | 30.00 GTexel/s | 134.4 GTexel/s |
| FP32 (float)Different | 1,200.0 GFLOPS | 4.301 TFLOPS |
| FP64 (double)Different | 240.0 GFLOPS (1:5) | 1,075.2 GFLOPS (1:4) |
Board Design
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 7970 GHz Edition |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 241 mm9.5 inches | 275 mm10.8 inches |
| Height | 111 mm4.4 inches | 111 mm4.4 inches |
| WidthDifferent | 40 mm1.6 inches | 38 mm1.5 inches |
| TDPDifferent | 150 W | 300 W |
| Suggested PSUDifferent | 450 W | 700 W |
| OutputsDifferent | 2x DVI1x S-Video | 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | 2x 6-pin | 1x 6-pin + 1x 8-pin |
| Board NumberDifferent | 109-B50731-10 | 109-C38637-00 |
Graphics Features
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 7970 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
49
Detailed Features
More Comparisons with ATI Radeon HD 4870
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ATI Radeon HD 4870 vs GeForce GTX 460
GeForce GTX 460 Performance120%
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ATI Radeon HD 4870 vs Radeon HD 4890
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ATI Radeon HD 4870 vs Radeon HD 6790
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ATI Radeon HD 4870 vs GeForce GTX 650
GeForce GTX 650 Performance102%
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ATI Radeon HD 4870 vs GeForce GTX 550 Ti
GeForce GTX 550 Ti Performance101%
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AMD Radeon HD 7970 GHz Edition vs Arc A380
Arc A380 Performance111%
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AMD Radeon HD 7970 GHz Edition vs GeForce GTX 780
GeForce GTX 780 Performance111%
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AMD Radeon HD 7970 GHz Edition vs Radeon HD 7970 GHz Edition
Radeon HD 7970 GHz Edition Performance100%
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AMD Radeon HD 7970 GHz Edition vs GeForce GTX 590
GeForce GTX 590 Performance100%
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