GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon HD 6990
167%
167%
AMD Radeon HD 7850
60%
60%
AMD Radeon HD 6990 is approximately 107% faster
Technical Specifications
| Specification | AMD Radeon HD 6990 | AMD Radeon HD 7850 |
|---|---|---|
| Graphics ProcessorDifferent | Antilles x2 | Pitcairn |
| CoresDifferent | 1536 x2 | 1024 |
| TMUsDifferent | 96 x2 | 64 |
| ROPsDifferent | 32 x2 | 32 |
| Memory SizeDifferent | 2 GB x2 | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 256 bit x2 | 256 bit |
Graphics Processor
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 7850 |
|---|---|---|
| GPU NameDifferent | Antilles | Pitcairn |
| GPU VariantDifferent | Antilles XT(215-0807027) | Pitcairn PRO(215-0828062) |
| ArchitectureDifferent | TeraScale 3 | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 40 nm | 28 nm |
| TransistorsDifferent | 2,640 million | 2,800 million |
| DensityDifferent | 6.8M / mm² | 13.2M / mm² |
| Die SizeDifferent | 389 mm² | 212 mm² |
| Chip PackageDifferent | N/A | FCBGA-1737 |
Graphics Card
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 7850 |
|---|---|---|
| Release DateDifferent | Mar 8th, 2011 | Mar 5th, 2012 |
| GenerationDifferent | Northern Islands(HD 6900) | Southern Islands(HD 7800) |
| PredecessorDifferent | Evergreen | Northern Islands |
| SuccessorDifferent | Southern Islands | Sea Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 699 USD | 249 USD |
| Bus InterfaceDifferent | PCIe 2.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 47 in our database | 71 in our database |
Clock Speeds
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 7850 |
|---|---|---|
| GPU ClockDifferent | 830 MHz | 860 MHz |
| Memory ClockDifferent | 1250 MHz5 Gbps effective | 1200 MHz4.8 Gbps effective |
Memory
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 7850 |
|---|---|---|
| Memory Size | 2 GB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 256 bit | 256 bit |
| BandwidthDifferent | 160.0 GB/s | 153.6 GB/s |
Render Config
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 7850 |
|---|---|---|
| Shading UnitsDifferent | 1536 | 1024 |
| TMUsDifferent | 96 | 64 |
| ROPs | 32 | 32 |
| Compute UnitsDifferent | 24 | 16 |
| L1 CacheDifferent | 8 KB (per CU) | 16 KB (per CU) |
| L2 Cache | 512 KB | 512 KB |
Theoretical Performance
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 7850 |
|---|---|---|
| Pixel RateDifferent | 26.56 GPixel/s | 27.52 GPixel/s |
| Texture RateDifferent | 79.68 GTexel/s | 55.04 GTexel/s |
| FP32 (float)Different | 2.550 TFLOPS | 1.761 TFLOPS |
| FP64 (double)Different | 637.4 GFLOPS (1:4) | 110.1 GFLOPS (1:16) |
Board Design
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 7850 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 310 mm12.2 inches | 210 mm8.3 inches |
| HeightDifferent | 115 mm4.5 inches | N/A |
| WidthDifferent | 40 mm1.6 inches | N/A |
| TDPDifferent | 375 W | 130 W |
| Suggested PSUDifferent | 750 W | 300 W |
| OutputsDifferent | 1x DVI4x mini-DisplayPort 1.2 | 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | 2x 8-pin | 1x 6-pin |
| Board NumberDifferent | 109-C20647-00 | 109-C40147-00, 109-C40337-00A |
Graphics Features
| Feature | AMD Radeon HD 6990 | AMD Radeon HD 7850 |
|---|---|---|
| DirectXDifferent | 11.2 (11_0) | 12 (11_1) |
| OpenGLDifferent | 4.4 | 4.6 |
| OpenCLDifferent | 1.2 | 2.1 (1.2) |
| VulkanDifferent | N/A | 1.2.170 |
| Shader ModelDifferent | 5.0 | 6.5 (5.1) |
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
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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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More Comparisons with AMD Radeon HD 7850
Compare AMD Radeon HD 7850 with other GPUs of similar performance
AMD Radeon HD 7850 vs GeForce GTX 950
GeForce GTX 950 Performance120%
GeForce GTX 950 is 20% faster than AMD Radeon HD 7850
Compare Detailed Specs
AMD Radeon HD 7850 vs Radeon RX 560
Radeon RX 560 Performance113%
Radeon RX 560 is 13% faster than AMD Radeon HD 7850
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AMD Radeon HD 7850 vs GeForce GTX 570
GeForce GTX 570 Performance111%
GeForce GTX 570 is 11% faster than AMD Radeon HD 7850
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AMD Radeon HD 7850 vs GeForce GTX 660
GeForce GTX 660 Performance111%
GeForce GTX 660 is 11% faster than AMD Radeon HD 7850
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AMD Radeon HD 7850 vs Radeon R7 370
Radeon R7 370 Performance110%
Radeon R7 370 is 10% faster than AMD Radeon HD 7850
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AMD Radeon HD 7850 vs Radeon HD 6970
Radeon HD 6970 Performance106%
Radeon HD 6970 is 6% faster than AMD Radeon HD 7850
Compare Detailed Specs