GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
ATI Radeon HD 4870 X2
98%
98%
AMD Radeon HD 6950
102%
102%
AMD Radeon HD 6950 is approximately 4% faster
Technical Specifications
| Specification | ATI Radeon HD 4870 X2 | AMD Radeon HD 6950 |
|---|---|---|
| Graphics ProcessorDifferent | R700 x2 | Cayman |
| CoresDifferent | 800 x2 | 1408 |
| TMUsDifferent | 40 x2 | 88 |
| ROPsDifferent | 16 x2 | 32 |
| Memory SizeDifferent | 1024 MB x2 | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 256 bit x2 | 256 bit |
Graphics Processor
| Feature | ATI Radeon HD 4870 X2 | AMD Radeon HD 6950 |
|---|---|---|
| GPU NameDifferent | R700 | Cayman |
| GPU VariantDifferent | R700 XT(215-0669045) | Cayman PRO(215-0807019) |
| 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 6950 |
|---|---|---|
| Release DateDifferent | Aug 12th, 2008 | Dec 14th, 2010 |
| 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 | 299 USD |
| Bus Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 79 in our database | 111 in our database |
Clock Speeds
| Feature | ATI Radeon HD 4870 X2 | AMD Radeon HD 6950 |
|---|---|---|
| GPU ClockDifferent | 750 MHz | 800 MHz |
| Memory ClockDifferent | 900 MHz3.6 Gbps effective | 1250 MHz5 Gbps effective |
Memory
| Feature | ATI Radeon HD 4870 X2 | AMD Radeon HD 6950 |
|---|---|---|
| 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 6950 |
|---|---|---|
| Shading UnitsDifferent | 800 | 1408 |
| TMUsDifferent | 40 | 88 |
| ROPsDifferent | 16 | 32 |
| Compute UnitsDifferent | 10 | 22 |
| 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 6950 |
|---|---|---|
| Pixel RateDifferent | 12.00 GPixel/s | 25.60 GPixel/s |
| Texture RateDifferent | 30.00 GTexel/s | 70.40 GTexel/s |
| FP32 (float)Different | 1,200.0 GFLOPS | 2.253 TFLOPS |
| FP64 (double)Different | 240.0 GFLOPS (1:5) | 563.2 GFLOPS (1:4) |
Board Design
| Feature | ATI Radeon HD 4870 X2 | AMD Radeon HD 6950 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 267 mm10.5 inches | 286 mm11.3 inches |
| HeightDifferent | 111 mm4.4 inches | 126 mm5 inches |
| WidthDifferent | 38 mm1.5 inches | 42 mm1.7 inches |
| TDPDifferent | 286 W | 200 W |
| Suggested PSUDifferent | 600 W | 550 W |
| OutputsDifferent | 2x DVI1x S-Video | 2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | 1x 6-pin + 1x 8-pin | 2x 6-pin |
| Board NumberDifferent | 109-B50937-00 | 109-C21647-00 |
Graphics Features
| Feature | ATI Radeon HD 4870 X2 | AMD Radeon HD 6950 |
|---|---|---|
| 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 6950
Compare AMD Radeon HD 6950 with other GPUs of similar performance
AMD Radeon HD 6950 vs Radeon RX 560
Radeon RX 560 Performance119%
Radeon RX 560 is 19% faster than AMD Radeon HD 6950
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AMD Radeon HD 6950 vs GeForce GTX 570
GeForce GTX 570 Performance117%
GeForce GTX 570 is 17% faster than AMD Radeon HD 6950
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AMD Radeon HD 6950 vs GeForce GTX 660
GeForce GTX 660 Performance117%
GeForce GTX 660 is 17% faster than AMD Radeon HD 6950
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AMD Radeon HD 6950 vs Radeon R7 370
Radeon R7 370 Performance116%
Radeon R7 370 is 16% faster than AMD Radeon HD 6950
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AMD Radeon HD 6950 vs Radeon HD 6970
Radeon HD 6970 Performance112%
Radeon HD 6970 is 12% faster than AMD Radeon HD 6950
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AMD Radeon HD 6950 vs GeForce GTX 480
GeForce GTX 480 Performance107%
GeForce GTX 480 is 7% faster than AMD Radeon HD 6950
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