GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
ATI Radeon HD 4870
56%
56%
AMD Radeon HD 6990
317%
317%
AMD Radeon HD 6990 is approximately 261% faster
Technical Specifications
| Specification | ATI Radeon HD 4870 | AMD Radeon HD 6990 |
|---|---|---|
| Graphics ProcessorDifferent | RV770 | Antilles x2 |
| CoresDifferent | 800 | 1536 x2 |
| TMUsDifferent | 40 | 96 x2 |
| ROPsDifferent | 16 | 32 x2 |
| Memory SizeDifferent | 512 MB | 2 GB x2 |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 256 bit | 256 bit x2 |
Graphics Processor
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 6990 |
|---|---|---|
| GPU NameDifferent | RV770 | Antilles |
| GPU VariantDifferent | RV770 XT(215-0669049) | Antilles XT(215-0807027) |
| ArchitectureDifferent | TeraScale | TeraScale 3 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 55 nm | 40 nm |
| TransistorsDifferent | 956 million | 2,640 million |
| DensityDifferent | 3.7M / mm² | 6.8M / mm² |
| Die SizeDifferent | 256 mm² | 389 mm² |
| Chip PackageDifferent | HFCBGA-1492 | N/A |
Graphics Card
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 6990 |
|---|---|---|
| Release DateDifferent | Jun 25th, 2008 | Mar 8th, 2011 |
| GenerationDifferent | Radeon R700(HD 4800) | Northern Islands(HD 6900) |
| PredecessorDifferent | Radeon R600 | Evergreen |
| SuccessorDifferent | Evergreen | Southern Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 299 USD | 699 USD |
| Bus Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 135 in our database | 47 in our database |
Clock Speeds
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 6990 |
|---|---|---|
| GPU ClockDifferent | 750 MHz | 830 MHz |
| Memory ClockDifferent | 900 MHz3.6 Gbps effective | 1250 MHz5 Gbps effective |
Memory
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 6990 |
|---|---|---|
| Memory SizeDifferent | 512 MB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 256 bit | 256 bit |
| BandwidthDifferent | 115.2 GB/s | 160.0 GB/s |
Render Config
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 6990 |
|---|---|---|
| Shading UnitsDifferent | 800 | 1536 |
| TMUsDifferent | 40 | 96 |
| ROPsDifferent | 16 | 32 |
| Compute UnitsDifferent | 10 | 24 |
| L1 CacheDifferent | 16 KB (per CU) | 8 KB (per CU) |
| L2 CacheDifferent | 256 KB | 512 KB |
Theoretical Performance
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 6990 |
|---|---|---|
| Pixel RateDifferent | 12.00 GPixel/s | 26.56 GPixel/s |
| Texture RateDifferent | 30.00 GTexel/s | 79.68 GTexel/s |
| FP32 (float)Different | 1,200.0 GFLOPS | 2.550 TFLOPS |
| FP64 (double)Different | 240.0 GFLOPS (1:5) | 637.4 GFLOPS (1:4) |
Board Design
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 6990 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 241 mm9.5 inches | 310 mm12.2 inches |
| HeightDifferent | 111 mm4.4 inches | 115 mm4.5 inches |
| Width | 40 mm1.6 inches | 40 mm1.6 inches |
| TDPDifferent | 150 W | 375 W |
| Suggested PSUDifferent | 450 W | 750 W |
| OutputsDifferent | 2x DVI1x S-Video | 1x DVI4x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | 2x 6-pin | 2x 8-pin |
| Board NumberDifferent | 109-B50731-10 | 109-C20647-00 |
Graphics Features
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 6990 |
|---|---|---|
| DirectXDifferent | 10.1 (10_1) | 11.2 (11_0) |
| OpenGLDifferent | 3.3 | 4.4 |
| OpenCLDifferent | 1.1 | 1.2 |
| Vulkan | N/A | N/A |
| Shader ModelDifferent | 4.1 | 5.0 |
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
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 HD 6990
Compare AMD Radeon HD 6990 with other GPUs of similar performance
AMD Radeon HD 6990 vs GeForce GTX 1650
GeForce GTX 1650 Performance119%
GeForce GTX 1650 is 19% faster than AMD Radeon HD 6990
Compare Detailed Specs
AMD Radeon HD 6990 vs Radeon RX 6400
Radeon RX 6400 Performance117%
Radeon RX 6400 is 17% faster than AMD Radeon HD 6990
Compare Detailed Specs
AMD Radeon HD 6990 vs Arc A380
Arc A380 Performance115%
Arc A380 is 15% faster than AMD Radeon HD 6990
Compare Detailed Specs
AMD Radeon HD 6990 vs GeForce GTX 780
GeForce GTX 780 Performance115%
GeForce GTX 780 is 15% faster than AMD Radeon HD 6990
Compare Detailed Specs
AMD Radeon HD 6990 vs Radeon HD 7970 GHz Edition
Radeon HD 7970 GHz Edition Performance104%
Radeon HD 7970 GHz Edition is 4% faster than AMD Radeon HD 6990
Compare Detailed Specs
AMD Radeon HD 6990 vs GeForce GTX 590
GeForce GTX 590 Performance104%
GeForce GTX 590 is 4% faster than AMD Radeon HD 6990
Compare Detailed Specs