GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
ATI Radeon HD 4870 X2
56%
56%
AMD Radeon HD 6990
180%
180%
AMD Radeon HD 6990 is approximately 124% faster
Technical Specifications
| Specification | ATI Radeon HD 4870 X2 | AMD Radeon HD 6990 |
|---|---|---|
| Graphics ProcessorDifferent | R700 x2 | Antilles x2 |
| CoresDifferent | 800 x2 | 1536 x2 |
| TMUsDifferent | 40 x2 | 96 x2 |
| ROPsDifferent | 16 x2 | 32 x2 |
| Memory SizeDifferent | 1024 MB x2 | 2 GB x2 |
| Memory Type | GDDR5 | GDDR5 |
| Bus Width | 256 bit x2 | 256 bit x2 |
Graphics Processor
| Feature | ATI Radeon HD 4870 X2 | AMD Radeon HD 6990 |
|---|---|---|
| GPU NameDifferent | R700 | Antilles |
| GPU VariantDifferent | R700 XT(215-0669045) | 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 |
Graphics Card
| Feature | ATI Radeon HD 4870 X2 | AMD Radeon HD 6990 |
|---|---|---|
| Release DateDifferent | Aug 12th, 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 | 550 USD | 699 USD |
| Bus Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 79 in our database | 47 in our database |
Clock Speeds
| Feature | ATI Radeon HD 4870 X2 | 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 X2 | AMD Radeon HD 6990 |
|---|---|---|
| Memory SizeDifferent | 1024 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 X2 | 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 X2 | 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 X2 | AMD Radeon HD 6990 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 267 mm10.5 inches | 310 mm12.2 inches |
| HeightDifferent | 111 mm4.4 inches | 115 mm4.5 inches |
| WidthDifferent | 38 mm1.5 inches | 40 mm1.6 inches |
| TDPDifferent | 286 W | 375 W |
| Suggested PSUDifferent | 600 W | 750 W |
| OutputsDifferent | 2x DVI1x S-Video | 1x DVI4x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | 1x 6-pin + 1x 8-pin | 2x 8-pin |
| Board NumberDifferent | 109-B50937-00 | 109-C20647-00 |
Graphics Features
| Feature | ATI Radeon HD 4870 X2 | 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
46
Detailed Features
More Comparisons with ATI Radeon HD 4870 X2
Compare ATI Radeon HD 4870 X2 with other GPUs of similar performance
ATI Radeon HD 4870 X2 vs GeForce GTX 570
GeForce GTX 570 Performance120%
GeForce GTX 570 is 20% faster than ATI Radeon HD 4870 X2
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ATI Radeon HD 4870 X2 vs GeForce GTX 660
GeForce GTX 660 Performance119%
GeForce GTX 660 is 19% faster than ATI Radeon HD 4870 X2
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ATI Radeon HD 4870 X2 vs Radeon R7 370
Radeon R7 370 Performance119%
Radeon R7 370 is 19% faster than ATI Radeon HD 4870 X2
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ATI Radeon HD 4870 X2 vs Radeon HD 6970
Radeon HD 6970 Performance115%
Radeon HD 6970 is 15% faster than ATI Radeon HD 4870 X2
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ATI Radeon HD 4870 X2 vs GeForce GTX 480
GeForce GTX 480 Performance110%
GeForce GTX 480 is 10% faster than ATI Radeon HD 4870 X2
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ATI Radeon HD 4870 X2 vs Radeon HD 7850
Radeon HD 7850 Performance108%
Radeon HD 7850 is 8% faster than ATI Radeon HD 4870 X2
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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
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AMD Radeon HD 6990 vs Radeon RX 6400
Radeon RX 6400 Performance117%
Radeon RX 6400 is 17% faster than AMD Radeon HD 6990
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AMD Radeon HD 6990 vs Arc A380
Arc A380 Performance115%
Arc A380 is 15% faster than AMD Radeon HD 6990
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AMD Radeon HD 6990 vs GeForce GTX 780
GeForce GTX 780 Performance115%
GeForce GTX 780 is 15% faster than AMD Radeon HD 6990
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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
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AMD Radeon HD 6990 vs GeForce GTX 590
GeForce GTX 590 Performance104%
GeForce GTX 590 is 4% faster than AMD Radeon HD 6990
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