GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
ATI Radeon HD 4870
753%
753%
AMD Radeon HD 6450
23%
23%
ATI Radeon HD 4870 is approximately 730% faster
Technical Specifications
| Specification | ATI Radeon HD 4870 | AMD Radeon HD 6450 |
|---|---|---|
| Graphics ProcessorDifferent | RV770 | Caicos |
| CoresDifferent | 800 | 160 |
| TMUsDifferent | 40 | 8 |
| ROPsDifferent | 16 | 4 |
| Memory Size | 512 MB | 512 MB |
| Memory TypeDifferent | GDDR5 | GDDR3 |
| Bus WidthDifferent | 256 bit | 64 bit |
Graphics Processor
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 6450 |
|---|---|---|
| GPU NameDifferent | RV770 | Caicos |
| GPU VariantDifferent | RV770 XT(215-0669049) | Caicos PRO |
| ArchitectureDifferent | TeraScale | TeraScale 2 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 55 nm | 40 nm |
| TransistorsDifferent | 956 million | 370 million |
| DensityDifferent | 3.7M / mm² | 5.5M / mm² |
| Die SizeDifferent | 256 mm² | 67 mm² |
| Chip PackageDifferent | HFCBGA-1492 | FCBGA-631 |
Graphics Card
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 6450 |
|---|---|---|
| Release DateDifferent | Jun 25th, 2008 | Apr 7th, 2011 |
| GenerationDifferent | Radeon R700(HD 4800) | Northern Islands(HD 6400) |
| PredecessorDifferent | Radeon R600 | Evergreen |
| SuccessorDifferent | Evergreen | Southern Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 299 USD | 55 USD |
| Bus Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 135 in our database | 14 in our database |
Clock Speeds
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 6450 |
|---|---|---|
| GPU ClockDifferent | 750 MHz | 625 MHz |
| Memory ClockDifferent | 900 MHz3.6 Gbps effective | 500 MHz1000 Mbps effective |
Memory
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 6450 |
|---|---|---|
| Memory Size | 512 MB | 512 MB |
| Memory TypeDifferent | GDDR5 | GDDR3 |
| Memory BusDifferent | 256 bit | 64 bit |
| BandwidthDifferent | 115.2 GB/s | 8.000 GB/s |
Render Config
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 6450 |
|---|---|---|
| Shading UnitsDifferent | 800 | 160 |
| TMUsDifferent | 40 | 8 |
| ROPsDifferent | 16 | 4 |
| Compute UnitsDifferent | 10 | 2 |
| L1 CacheDifferent | 16 KB (per CU) | 8 KB (per CU) |
| L2 CacheDifferent | 256 KB | 128 KB |
Theoretical Performance
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 6450 |
|---|---|---|
| Pixel RateDifferent | 12.00 GPixel/s | 2.500 GPixel/s |
| Texture RateDifferent | 30.00 GTexel/s | 5.000 GTexel/s |
| FP32 (float)Different | 1,200.0 GFLOPS | 200.0 GFLOPS |
| FP64 (double)Different | 240.0 GFLOPS (1:5) | N/A |
Board Design
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 6450 |
|---|---|---|
| Slot WidthDifferent | Dual-slot | Single-slot |
| LengthDifferent | 241 mm9.5 inches | 168 mm6.6 inches |
| HeightDifferent | 111 mm4.4 inches | N/A |
| WidthDifferent | 40 mm1.6 inches | N/A |
| TDPDifferent | 150 W | 18 W |
| Suggested PSUDifferent | 450 W | 200 W |
| OutputsDifferent | 2x DVI1x S-Video | 1x DVI1x HDMI 1.3a1x VGA |
| Power ConnectorsDifferent | 2x 6-pin | None |
| Board NumberDifferent | 109-B50731-10 | 109-C26037-00A |
Graphics Features
| Feature | ATI Radeon HD 4870 | AMD Radeon HD 6450 |
|---|---|---|
| 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
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ATI Radeon HD 4870 vs Radeon HD 4890
Radeon HD 4890 Performance116%
Radeon HD 4890 is 16% faster than ATI Radeon HD 4870
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ATI Radeon HD 4870 vs Radeon HD 6790
Radeon HD 6790 Performance114%
Radeon HD 6790 is 14% faster than ATI Radeon HD 4870
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ATI Radeon HD 4870 vs Radeon HD 5830
Radeon HD 5830 Performance108%
Radeon HD 5830 is 8% faster than ATI Radeon HD 4870
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ATI Radeon HD 4870 vs GeForce GTX 650
GeForce GTX 650 Performance102%
GeForce GTX 650 is 2% faster than ATI Radeon HD 4870
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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
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More Comparisons with AMD Radeon HD 6450
Compare AMD Radeon HD 6450 with other GPUs of similar performance
AMD Radeon HD 6450 vs GeForce GT 520
GeForce GT 520 Performance106%
GeForce GT 520 is 6% faster than AMD Radeon HD 6450
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AMD Radeon HD 6450 vs Radeon HD 6450
Radeon HD 6450 Performance100%
Radeon HD 6450 is 0% slower than AMD Radeon HD 6450
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AMD Radeon HD 6450 vs Radeon HD 5450
Radeon HD 5450 Performance85%
Radeon HD 5450 is 15% slower than AMD Radeon HD 6450
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AMD Radeon HD 6450 vs Radeon HD 6450
Radeon HD 6450 Performance100%
Radeon HD 6450 is 0% slower than AMD Radeon HD 6450
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AMD Radeon HD 6450 vs Radeon HD 6450
Radeon HD 6450 Performance100%
Radeon HD 6450 is 0% slower than AMD Radeon HD 6450
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