GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon HD 6990
240%
240%
AMD Radeon HD 6850
42%
42%
AMD Radeon HD 6990 is approximately 198% faster
Technical Specifications
| Specification | AMD Radeon HD 6990 | AMD Radeon HD 6850 |
|---|---|---|
| Graphics ProcessorDifferent | Antilles x2 | Barts |
| CoresDifferent | 1536 x2 | 960 |
| TMUsDifferent | 96 x2 | 48 |
| ROPsDifferent | 32 x2 | 32 |
| Memory SizeDifferent | 2 GB x2 | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 256 bit x2 | 256 bit |
Graphics Processor
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 6850 |
|---|---|---|
| GPU NameDifferent | Antilles | Barts |
| GPU VariantDifferent | Antilles XT(215-0807027) | Barts PRO(215-0798006) |
| ArchitectureDifferent | TeraScale 3 | TeraScale 2 |
| Foundry | TSMC | TSMC |
| Process Size | 40 nm | 40 nm |
| TransistorsDifferent | 2,640 million | 1,700 million |
| DensityDifferent | 6.8M / mm² | 6.7M / mm² |
| Die SizeDifferent | 389 mm² | 255 mm² |
| Chip PackageDifferent | N/A | HFCBGA-1737 |
Graphics Card
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 6850 |
|---|---|---|
| Release DateDifferent | Mar 8th, 2011 | Oct 21st, 2010 |
| GenerationDifferent | Northern Islands(HD 6900) | Northern Islands(HD 6800) |
| Predecessor | Evergreen | Evergreen |
| Successor | Southern Islands | Southern Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 699 USD | 179 USD |
| Bus Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 47 in our database | 105 in our database |
Clock Speeds
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 6850 |
|---|---|---|
| GPU ClockDifferent | 830 MHz | 775 MHz |
| Memory ClockDifferent | 1250 MHz5 Gbps effective | 1000 MHz4 Gbps effective |
Memory
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 6850 |
|---|---|---|
| Memory SizeDifferent | 2 GB | 1024 MB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 256 bit | 256 bit |
| BandwidthDifferent | 160.0 GB/s | 128.0 GB/s |
Render Config
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 6850 |
|---|---|---|
| Shading UnitsDifferent | 1536 | 960 |
| TMUsDifferent | 96 | 48 |
| ROPs | 32 | 32 |
| Compute UnitsDifferent | 24 | 12 |
| L1 Cache | 8 KB (per CU) | 8 KB (per CU) |
| L2 Cache | 512 KB | 512 KB |
Theoretical Performance
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 6850 |
|---|---|---|
| Pixel RateDifferent | 26.56 GPixel/s | 24.80 GPixel/s |
| Texture RateDifferent | 79.68 GTexel/s | 37.20 GTexel/s |
| FP32 (float)Different | 2.550 TFLOPS | 1,488.0 GFLOPS |
| FP64 (double)Different | 637.4 GFLOPS (1:4) | N/A |
Board Design
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 6850 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 310 mm12.2 inches | 198 mm7.8 inches |
| HeightDifferent | 115 mm4.5 inches | N/A |
| WidthDifferent | 40 mm1.6 inches | N/A |
| TDPDifferent | 375 W | 127 W |
| Suggested PSUDifferent | 750 W | 300 W |
| OutputsDifferent | 1x DVI4x mini-DisplayPort 1.2 | 2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1 |
| Power ConnectorsDifferent | 2x 8-pin | 1x 6-pin |
| Board NumberDifferent | 109-C20647-00 | 109-C22301-00B |
Graphics Features
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 6850 |
|---|---|---|
| DirectX | 11.2 (11_0) | 11.2 (11_0) |
| OpenGL | 4.4 | 4.4 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | N/A | N/A |
| Shader Model | 5.0 | 5.0 |
Comparison Summary
7
Specifications Compared
8
Feature Categories
47
Detailed Features
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
Compare Detailed Specs
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
Compare Detailed Specs
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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More Comparisons with AMD Radeon HD 6850
Compare AMD Radeon HD 6850 with other GPUs of similar performance
AMD Radeon HD 6850 vs GeForce GTX 470
GeForce GTX 470 Performance116%
GeForce GTX 470 is 16% faster than AMD Radeon HD 6850
Compare Detailed Specs
AMD Radeon HD 6850 vs GeForce GTX 650 Ti
GeForce GTX 650 Ti Performance111%
GeForce GTX 650 Ti is 11% faster than AMD Radeon HD 6850
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AMD Radeon HD 6850 vs Radeon HD 5850
Radeon HD 5850 Performance109%
Radeon HD 5850 is 9% faster than AMD Radeon HD 6850
Compare Detailed Specs
AMD Radeon HD 6850 vs GeForce GTX 285
GeForce GTX 285 Performance102%
GeForce GTX 285 is 2% faster than AMD Radeon HD 6850
Compare Detailed Specs
AMD Radeon HD 6850 vs Radeon HD 6850
Radeon HD 6850 Performance100%
Radeon HD 6850 is 0% slower than AMD Radeon HD 6850
Compare Detailed Specs
AMD Radeon HD 6850 vs GeForce GTX 280
GeForce GTX 280 Performance94%
GeForce GTX 280 is 6% slower than AMD Radeon HD 6850
Compare Detailed Specs