GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
ATI Radeon HD 4890
494%
494%
AMD Radeon HD 6450
20%
20%
ATI Radeon HD 4890 is approximately 474% faster
Technical Specifications
| Specification | ATI Radeon HD 4890 | AMD Radeon HD 6450 |
|---|---|---|
| Graphics ProcessorDifferent | RV790 | Caicos |
| CoresDifferent | 800 | 160 |
| TMUsDifferent | 40 | 8 |
| ROPsDifferent | 16 | 4 |
| Memory SizeDifferent | 1024 MB | 512 MB |
| Memory TypeDifferent | GDDR5 | GDDR3 |
| Bus WidthDifferent | 256 bit | 64 bit |
Graphics Processor
| Feature | ATI Radeon HD 4890 | AMD Radeon HD 6450 |
|---|---|---|
| GPU NameDifferent | RV790 | Caicos |
| GPU VariantDifferent | RV790 XT(215-0758016) | Caicos PRO |
| ArchitectureDifferent | TeraScale | TeraScale 2 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 55 nm | 40 nm |
| TransistorsDifferent | 959 million | 370 million |
| DensityDifferent | 3.4M / mm² | 5.5M / mm² |
| Die SizeDifferent | 282 mm² | 67 mm² |
| Chip PackageDifferent | N/A | FCBGA-631 |
Graphics Card
| Feature | ATI Radeon HD 4890 | AMD Radeon HD 6450 |
|---|---|---|
| Release DateDifferent | Apr 2nd, 2009 | 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 | 249 USD | 55 USD |
| Bus Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 114 in our database | 14 in our database |
Clock Speeds
| Feature | ATI Radeon HD 4890 | AMD Radeon HD 6450 |
|---|---|---|
| GPU ClockDifferent | 850 MHz | 625 MHz |
| Memory ClockDifferent | 975 MHz3.9 Gbps effective | 500 MHz1000 Mbps effective |
Memory
| Feature | ATI Radeon HD 4890 | AMD Radeon HD 6450 |
|---|---|---|
| Memory SizeDifferent | 1024 MB | 512 MB |
| Memory TypeDifferent | GDDR5 | GDDR3 |
| Memory BusDifferent | 256 bit | 64 bit |
| BandwidthDifferent | 124.8 GB/s | 8.000 GB/s |
Render Config
| Feature | ATI Radeon HD 4890 | 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 4890 | AMD Radeon HD 6450 |
|---|---|---|
| Pixel RateDifferent | 13.60 GPixel/s | 2.500 GPixel/s |
| Texture RateDifferent | 34.00 GTexel/s | 5.000 GTexel/s |
| FP32 (float)Different | 1,360.0 GFLOPS | 200.0 GFLOPS |
| FP64 (double)Different | 272.0 GFLOPS (1:5) | N/A |
Board Design
| Feature | ATI Radeon HD 4890 | 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 | 190 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-B79031-00 | 109-C26037-00A |
Graphics Features
| Feature | ATI Radeon HD 4890 | 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 4890
Compare ATI Radeon HD 4890 with other GPUs of similar performance
ATI Radeon HD 4890 vs GeForce GTX 285
GeForce GTX 285 Performance117%
GeForce GTX 285 is 17% faster than ATI Radeon HD 4890
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ATI Radeon HD 4890 vs Radeon HD 6850
Radeon HD 6850 Performance114%
Radeon HD 6850 is 14% faster than ATI Radeon HD 4890
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ATI Radeon HD 4890 vs GeForce GTX 280
GeForce GTX 280 Performance107%
GeForce GTX 280 is 7% faster than ATI Radeon HD 4890
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ATI Radeon HD 4890 vs Radeon HD 7770 GHz Edition
Radeon HD 7770 GHz Edition Performance107%
Radeon HD 7770 GHz Edition is 7% faster than ATI Radeon HD 4890
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ATI Radeon HD 4890 vs GeForce GTX 275
GeForce GTX 275 Performance106%
GeForce GTX 275 is 6% faster than ATI Radeon HD 4890
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ATI Radeon HD 4890 vs GeForce GTX 460
GeForce GTX 460 Performance104%
GeForce GTX 460 is 4% faster than ATI Radeon HD 4890
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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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