GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon RX 6950 XT
576%
576%
AMD Radeon HD 6990
17%
17%
AMD Radeon RX 6950 XT is approximately 559% faster
Technical Specifications
| Specification | AMD Radeon RX 6950 XT | AMD Radeon HD 6990 |
|---|---|---|
| Graphics ProcessorDifferent | Navi 21 | Antilles x2 |
| CoresDifferent | 5120 | 1536 x2 |
| TMUsDifferent | 320 | 96 x2 |
| ROPsDifferent | 128 | 32 x2 |
| Memory SizeDifferent | 16 GB | 2 GB x2 |
| Memory TypeDifferent | GDDR6 | GDDR5 |
| Bus WidthDifferent | 256 bit | 256 bit x2 |
Graphics Processor
| Feature | AMD Radeon RX 6950 XT | AMD Radeon HD 6990 |
|---|---|---|
| GPU NameDifferent | Navi 21 | Antilles |
| GPU VariantDifferent | Navi 21 KXTX(215-121000289) | Antilles XT(215-0807027) |
| ArchitectureDifferent | RDNA 2.0 | TeraScale 3 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 7 nm | 40 nm |
| TransistorsDifferent | 26,800 million | 2,640 million |
| DensityDifferent | 51.5M / mm² | 6.8M / mm² |
| Die SizeDifferent | 520 mm² | 389 mm² |
| Chip PackageDifferent | BGA-2425 | N/A |
Graphics Card
| Feature | AMD Radeon RX 6950 XT | AMD Radeon HD 6990 |
|---|---|---|
| Release DateDifferent | May 10th, 2022 | Mar 8th, 2011 |
| GenerationDifferent | Navi II(RX 6000) | Northern Islands(HD 6900) |
| PredecessorDifferent | Navi | Evergreen |
| SuccessorDifferent | Navi III | Southern Islands |
| ProductionDifferent | Active | End-of-life |
| Launch PriceDifferent | 1,099 USD | 699 USD |
| Current PriceDifferent | Amazon/Newegg | N/A |
| Bus InterfaceDifferent | PCIe 4.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 21 in our database | 47 in our database |
Clock Speeds
| Feature | AMD Radeon RX 6950 XT | AMD Radeon HD 6990 |
|---|---|---|
| Base ClockDifferent | 1860 MHz | N/A |
| Game ClockDifferent | 2100 MHz | N/A |
| Boost ClockDifferent | 2310 MHz | N/A |
| Memory ClockDifferent | 2250 MHz18 Gbps effective | 1250 MHz5 Gbps effective |
| GPU ClockDifferent | N/A | 830 MHz |
Memory
| Feature | AMD Radeon RX 6950 XT | AMD Radeon HD 6990 |
|---|---|---|
| Memory SizeDifferent | 16 GB | 2 GB |
| Memory TypeDifferent | GDDR6 | GDDR5 |
| Memory Bus | 256 bit | 256 bit |
| BandwidthDifferent | 576.0 GB/s | 160.0 GB/s |
Render Config
| Feature | AMD Radeon RX 6950 XT | AMD Radeon HD 6990 |
|---|---|---|
| Shading UnitsDifferent | 5120 | 1536 |
| TMUsDifferent | 320 | 96 |
| ROPsDifferent | 128 | 32 |
| Compute UnitsDifferent | 80 | 24 |
| RT CoresDifferent | 80 | N/A |
| L0 CacheDifferent | 32 KB per WGP | N/A |
| L1 CacheDifferent | 128 KB per Array | 8 KB (per CU) |
| L2 CacheDifferent | 4 MB | 512 KB |
| L3 CacheDifferent | 128 MB | N/A |
Theoretical Performance
| Feature | AMD Radeon RX 6950 XT | AMD Radeon HD 6990 |
|---|---|---|
| Pixel RateDifferent | 295.7 GPixel/s | 26.56 GPixel/s |
| Texture RateDifferent | 739.2 GTexel/s | 79.68 GTexel/s |
| FP16 (half)Different | 47.31 TFLOPS (2:1) | N/A |
| FP32 (float)Different | 23.65 TFLOPS | 2.550 TFLOPS |
| FP64 (double)Different | 1,478.4 GFLOPS (1:16) | 637.4 GFLOPS (1:4) |
Board Design
| Feature | AMD Radeon RX 6950 XT | AMD Radeon HD 6990 |
|---|---|---|
| Slot WidthDifferent | Triple-slot | Dual-slot |
| LengthDifferent | 267 mm10.5 inches | 310 mm12.2 inches |
| HeightDifferent | 120 mm4.7 inches | 115 mm4.5 inches |
| WidthDifferent | 50 mm2 inches | 40 mm1.6 inches |
| TDPDifferent | 335 W | 375 W |
| Suggested PSUDifferent | 700 W | 750 W |
| OutputsDifferent | 1x HDMI 2.12x DisplayPort 1.4a | 1x DVI4x mini-DisplayPort 1.2 |
| Power Connectors | 2x 8-pin | 2x 8-pin |
| Board NumberDifferent | D412 | 109-C20647-00 |
Graphics Features
| Feature | AMD Radeon RX 6950 XT | AMD Radeon HD 6990 |
|---|---|---|
| DirectXDifferent | 12 Ultimate (12_2) | 11.2 (11_0) |
| OpenGLDifferent | 4.6 | 4.4 |
| OpenCLDifferent | 2.1 | 1.2 |
| VulkanDifferent | 1.3 | N/A |
| Shader ModelDifferent | 6.8 | 5.0 |
Comparison Summary
7
Specifications Compared
8
Feature Categories
55
Detailed Features
More Comparisons with AMD Radeon RX 6950 XT
Compare AMD Radeon RX 6950 XT with other GPUs of similar performance
AMD Radeon RX 6950 XT vs GeForce RTX 4070 Ti
GeForce RTX 4070 Ti Performance111%
GeForce RTX 4070 Ti is 11% faster than AMD Radeon RX 6950 XT
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AMD Radeon RX 6950 XT vs GeForce RTX 5070
GeForce RTX 5070 Performance110%
GeForce RTX 5070 is 10% faster than AMD Radeon RX 6950 XT
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AMD Radeon RX 6950 XT vs GeForce RTX 3090
GeForce RTX 3090 Performance108%
GeForce RTX 3090 is 8% faster than AMD Radeon RX 6950 XT
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AMD Radeon RX 6950 XT vs GeForce RTX 3080 Ti
GeForce RTX 3080 Ti Performance107%
GeForce RTX 3080 Ti is 7% faster than AMD Radeon RX 6950 XT
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AMD Radeon RX 6950 XT vs GeForce RTX 4070 SUPER
GeForce RTX 4070 SUPER Performance103%
GeForce RTX 4070 SUPER is 3% faster than AMD Radeon RX 6950 XT
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AMD Radeon RX 6950 XT vs Radeon RX 7900 GRE
Radeon RX 7900 GRE Performance102%
Radeon RX 7900 GRE is 2% faster than AMD Radeon RX 6950 XT
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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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