GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
ATI Radeon HD 4870 X2
74%
74%
NVIDIA GeForce GTX 660 Ti
348%
348%
NVIDIA GeForce GTX 660 Ti is approximately 274% faster
Technical Specifications
| Specification | ATI Radeon HD 4870 X2 | NVIDIA GeForce GTX 660 Ti |
|---|---|---|
| Graphics ProcessorDifferent | R700 x2 | GK104 |
| CoresDifferent | 800 x2 | 1344 |
| TMUsDifferent | 40 x2 | 112 |
| ROPsDifferent | 16 x2 | 24 |
| Memory SizeDifferent | 1024 MB x2 | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 256 bit x2 | 192 bit |
Graphics Processor
| Feature | ATI Radeon HD 4870 X2 | NVIDIA GeForce GTX 660 Ti |
|---|---|---|
| GPU NameDifferent | R700 | GK104 |
| GPU VariantDifferent | R700 XT(215-0669045) | GK104-300-KD-A2 |
| ArchitectureDifferent | TeraScale | Kepler |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 55 nm | 28 nm |
| TransistorsDifferent | 956 million | 3,540 million |
| DensityDifferent | 3.7M / mm² | 12.0M / mm² |
| Die SizeDifferent | 256 mm² | 294 mm² |
| Chip PackageDifferent | N/A | BGA-1745 |
Graphics Card
| Feature | ATI Radeon HD 4870 X2 | NVIDIA GeForce GTX 660 Ti |
|---|---|---|
| Release DateDifferent | Aug 12th, 2008 | Aug 16th, 2012 |
| GenerationDifferent | Radeon R700(HD 4800) | GeForce 600 |
| PredecessorDifferent | Radeon R600 | GeForce 500 |
| SuccessorDifferent | Evergreen | GeForce 700 |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 550 USD | 299 USD |
| Bus InterfaceDifferent | PCIe 2.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 79 in our database | 83 in our database |
Clock Speeds
| Feature | ATI Radeon HD 4870 X2 | NVIDIA GeForce GTX 660 Ti |
|---|---|---|
| GPU ClockDifferent | 750 MHz | N/A |
| Memory ClockDifferent | 900 MHz3.6 Gbps effective | 1502 MHz6 Gbps effective |
| Base ClockDifferent | N/A | 915 MHz |
| Boost ClockDifferent | N/A | 980 MHz |
Memory
| Feature | ATI Radeon HD 4870 X2 | NVIDIA GeForce GTX 660 Ti |
|---|---|---|
| Memory SizeDifferent | 1024 MB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 256 bit | 192 bit |
| BandwidthDifferent | 115.2 GB/s | 144.2 GB/s |
Render Config
| Feature | ATI Radeon HD 4870 X2 | NVIDIA GeForce GTX 660 Ti |
|---|---|---|
| Shading UnitsDifferent | 800 | 1344 |
| TMUsDifferent | 40 | 112 |
| ROPsDifferent | 16 | 24 |
| Compute UnitsDifferent | 10 | N/A |
| L1 CacheDifferent | 16 KB (per CU) | 16 KB (per SMX) |
| L2 CacheDifferent | 256 KB | 384 KB |
| SMX CountDifferent | N/A | 7 |
Theoretical Performance
| Feature | ATI Radeon HD 4870 X2 | NVIDIA GeForce GTX 660 Ti |
|---|---|---|
| Pixel RateDifferent | 12.00 GPixel/s | 27.44 GPixel/s |
| Texture RateDifferent | 30.00 GTexel/s | 109.8 GTexel/s |
| FP32 (float)Different | 1,200.0 GFLOPS | 2.634 TFLOPS |
| FP64 (double)Different | 240.0 GFLOPS (1:5) | 109.8 GFLOPS (1:24) |
Board Design
| Feature | ATI Radeon HD 4870 X2 | NVIDIA GeForce GTX 660 Ti |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 267 mm10.5 inches | 241 mm9.5 inches |
| HeightDifferent | 111 mm4.4 inches | N/A |
| WidthDifferent | 38 mm1.5 inches | N/A |
| TDPDifferent | 286 W | 150 W |
| Suggested PSUDifferent | 600 W | 450 W |
| OutputsDifferent | 2x DVI1x S-Video | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 |
| Power ConnectorsDifferent | 1x 6-pin + 1x 8-pin | 2x 6-pin |
| Board NumberDifferent | 109-B50937-00 | P2004 SKU 1 |
Graphics Features
| Feature | ATI Radeon HD 4870 X2 | NVIDIA GeForce GTX 660 Ti |
|---|---|---|
| DirectXDifferent | 10.1 (10_1) | 12 (11_0) |
| OpenGLDifferent | 3.3 | 4.6 |
| OpenCLDifferent | 1.1 | 3.0 |
| VulkanDifferent | N/A | 1.2.175 |
| Shader ModelDifferent | 4.1 | 6.5 (5.1) |
| CUDADifferent | N/A | 3.0 |
Comparison Summary
7
Specifications Compared
8
Feature Categories
51
Detailed Features
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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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NVIDIA GeForce GTX 660 Ti vs GeForce GTX 960
GeForce GTX 960 Performance117%
GeForce GTX 960 is 17% faster than NVIDIA GeForce GTX 660 Ti
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NVIDIA GeForce GTX 660 Ti vs GeForce GTX 670
GeForce GTX 670 Performance114%
GeForce GTX 670 is 14% faster than NVIDIA GeForce GTX 660 Ti
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NVIDIA GeForce GTX 660 Ti vs Radeon HD 5970
Radeon HD 5970 Performance103%
Radeon HD 5970 is 3% faster than NVIDIA GeForce GTX 660 Ti
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NVIDIA GeForce GTX 660 Ti vs GeForce GTX 1630
GeForce GTX 1630 Performance103%
GeForce GTX 1630 is 3% faster than NVIDIA GeForce GTX 660 Ti
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NVIDIA GeForce GTX 660 Ti vs GeForce GTX 1050
GeForce GTX 1050 Performance101%
GeForce GTX 1050 is 1% faster than NVIDIA GeForce GTX 660 Ti
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NVIDIA GeForce GTX 660 Ti vs GeForce GTX 760
GeForce GTX 760 Performance101%
GeForce GTX 760 is 1% faster than NVIDIA GeForce GTX 660 Ti
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