GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
ATI Radeon HD 4890
36%
36%
AMD Radeon HD 6990
274%
274%
AMD Radeon HD 6990 is approximately 238% faster
Technical Specifications
| Specification | ATI Radeon HD 4890 | AMD Radeon HD 6990 |
|---|---|---|
| Graphics ProcessorDifferent | RV790 | Antilles x2 |
| CoresDifferent | 800 | 1536 x2 |
| TMUsDifferent | 40 | 96 x2 |
| ROPsDifferent | 16 | 32 x2 |
| Memory SizeDifferent | 1024 MB | 2 GB x2 |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 256 bit | 256 bit x2 |
Graphics Processor
| Feature | ATI Radeon HD 4890 | AMD Radeon HD 6990 |
|---|---|---|
| GPU NameDifferent | RV790 | Antilles |
| GPU VariantDifferent | RV790 XT(215-0758016) | Antilles XT(215-0807027) |
| ArchitectureDifferent | TeraScale | TeraScale 3 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 55 nm | 40 nm |
| TransistorsDifferent | 959 million | 2,640 million |
| DensityDifferent | 3.4M / mm² | 6.8M / mm² |
| Die SizeDifferent | 282 mm² | 389 mm² |
Graphics Card
| Feature | ATI Radeon HD 4890 | AMD Radeon HD 6990 |
|---|---|---|
| Release DateDifferent | Apr 2nd, 2009 | 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 | 249 USD | 699 USD |
| Bus Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 114 in our database | 47 in our database |
Clock Speeds
| Feature | ATI Radeon HD 4890 | AMD Radeon HD 6990 |
|---|---|---|
| GPU ClockDifferent | 850 MHz | 830 MHz |
| Memory ClockDifferent | 975 MHz3.9 Gbps effective | 1250 MHz5 Gbps effective |
Memory
| Feature | ATI Radeon HD 4890 | AMD Radeon HD 6990 |
|---|---|---|
| Memory SizeDifferent | 1024 MB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 256 bit | 256 bit |
| BandwidthDifferent | 124.8 GB/s | 160.0 GB/s |
Render Config
| Feature | ATI Radeon HD 4890 | 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 4890 | AMD Radeon HD 6990 |
|---|---|---|
| Pixel RateDifferent | 13.60 GPixel/s | 26.56 GPixel/s |
| Texture RateDifferent | 34.00 GTexel/s | 79.68 GTexel/s |
| FP32 (float)Different | 1,360.0 GFLOPS | 2.550 TFLOPS |
| FP64 (double)Different | 272.0 GFLOPS (1:5) | 637.4 GFLOPS (1:4) |
Board Design
| Feature | ATI Radeon HD 4890 | AMD Radeon HD 6990 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 241 mm9.5 inches | 310 mm12.2 inches |
| HeightDifferent | 111 mm4.4 inches | 115 mm4.5 inches |
| Width | 40 mm1.6 inches | 40 mm1.6 inches |
| TDPDifferent | 190 W | 375 W |
| Suggested PSUDifferent | 450 W | 750 W |
| OutputsDifferent | 2x DVI1x S-Video | 1x DVI4x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | 2x 6-pin | 2x 8-pin |
| Board NumberDifferent | 109-B79031-00 | 109-C20647-00 |
Graphics Features
| Feature | ATI Radeon HD 4890 | 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 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 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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