GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon RX 6700 XT
258%
258%
AMD Radeon HD 7990
39%
39%
AMD Radeon RX 6700 XT is approximately 219% faster
Technical Specifications
| Specification | AMD Radeon RX 6700 XT | AMD Radeon HD 7990 |
|---|---|---|
| Graphics ProcessorDifferent | Navi 22 | Malta x2 |
| CoresDifferent | 2560 | 2048 x2 |
| TMUsDifferent | 160 | 128 x2 |
| ROPsDifferent | 64 | 32 x2 |
| Memory SizeDifferent | 12 GB | 3 GB x2 |
| Memory TypeDifferent | GDDR6 | GDDR5 |
| Bus WidthDifferent | 192 bit | 384 bit x2 |
Graphics Processor
| Feature | AMD Radeon RX 6700 XT | AMD Radeon HD 7990 |
|---|---|---|
| GPU NameDifferent | Navi 22 | Malta |
| GPU VariantDifferent | Navi 22 XT(215-127000006) | Malta XT(215-0849026) |
| ArchitectureDifferent | RDNA 2.0 | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 7 nm | 28 nm |
| TransistorsDifferent | 17,200 million | 4,313 million |
| DensityDifferent | 51.3M / mm² | 11.8M / mm² |
| Die SizeDifferent | 335 mm² | 365 mm² |
| Chip PackageDifferent | BGA-1701 | N/A |
Graphics Card
| Feature | AMD Radeon RX 6700 XT | AMD Radeon HD 7990 |
|---|---|---|
| Release DateDifferent | Mar 3rd, 2021 | Apr 24th, 2013 |
| AvailabilityDifferent | Mar 18th, 2021 | N/A |
| GenerationDifferent | Navi II(RX 6000) | Southern Islands(HD 7900) |
| PredecessorDifferent | Navi | Northern Islands |
| SuccessorDifferent | Navi III | Sea Islands |
| ProductionDifferent | Active | End-of-life |
| Launch PriceDifferent | 479 USD | 999 USD |
| Current PriceDifferent | Amazon/Newegg | N/A |
| Bus InterfaceDifferent | PCIe 4.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 58 in our database | 37 in our database |
Clock Speeds
| Feature | AMD Radeon RX 6700 XT | AMD Radeon HD 7990 |
|---|---|---|
| Base ClockDifferent | 2321 MHz | 950 MHz |
| Game ClockDifferent | 2424 MHz | N/A |
| Boost ClockDifferent | 2581 MHz | 1000 MHz |
| Memory ClockDifferent | 2000 MHz16 Gbps effective | 1500 MHz6 Gbps effective |
Memory
| Feature | AMD Radeon RX 6700 XT | AMD Radeon HD 7990 |
|---|---|---|
| Memory SizeDifferent | 12 GB | 3 GB |
| Memory TypeDifferent | GDDR6 | GDDR5 |
| Memory BusDifferent | 192 bit | 384 bit |
| BandwidthDifferent | 384.0 GB/s | 288.0 GB/s |
Render Config
| Feature | AMD Radeon RX 6700 XT | AMD Radeon HD 7990 |
|---|---|---|
| Shading UnitsDifferent | 2560 | 2048 |
| TMUsDifferent | 160 | 128 |
| ROPsDifferent | 64 | 32 |
| Compute UnitsDifferent | 40 | 32 |
| RT CoresDifferent | 40 | N/A |
| L0 CacheDifferent | 32 KB per WGP | N/A |
| L1 CacheDifferent | 128 KB per Array | 16 KB (per CU) |
| L2 CacheDifferent | 3 MB | 768 KB |
| L3 CacheDifferent | 96 MB | N/A |
Theoretical Performance
| Feature | AMD Radeon RX 6700 XT | AMD Radeon HD 7990 |
|---|---|---|
| Pixel RateDifferent | 165.2 GPixel/s | 32.00 GPixel/s |
| Texture RateDifferent | 413.0 GTexel/s | 128.0 GTexel/s |
| FP16 (half)Different | 26.43 TFLOPS (2:1) | N/A |
| FP32 (float)Different | 13.21 TFLOPS | 4.096 TFLOPS |
| FP64 (double)Different | 825.9 GFLOPS (1:16) | 1,024.0 GFLOPS (1:4) |
Board Design
| Feature | AMD Radeon RX 6700 XT | AMD Radeon HD 7990 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 267 mm10.5 inches | 304 mm12 inches |
| HeightDifferent | 110 mm4.3 inches | 106 mm4.2 inches |
| WidthDifferent | 40 mm1.6 inches | 38 mm1.5 inches |
| TDPDifferent | 230 W | 375 W |
| Suggested PSUDifferent | 550 W | 750 W |
| OutputsDifferent | 1x HDMI 2.13x DisplayPort 1.4a | 1x DVI4x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | 1x 6-pin + 1x 8-pin | 2x 8-pin |
| Board NumberDifferent | 109-D512A7-00_02 | 109-C47637-00A_02 |
Graphics Features
| Feature | AMD Radeon RX 6700 XT | AMD Radeon HD 7990 |
|---|---|---|
| DirectXDifferent | 12 Ultimate (12_2) | 12 (11_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCLDifferent | 2.1 | 2.1 (1.2) |
| VulkanDifferent | 1.3 | 1.2.175 |
| Shader ModelDifferent | 6.8 | 6.5 (5.1) |
Comparison Summary
7
Specifications Compared
8
Feature Categories
55
Detailed Features
More Comparisons with AMD Radeon RX 6700 XT
Compare AMD Radeon RX 6700 XT with other GPUs of similar performance
AMD Radeon RX 6700 XT vs Radeon RX 6800
Radeon RX 6800 Performance120%
Radeon RX 6800 is 20% faster than AMD Radeon RX 6700 XT
Compare Detailed Specs
AMD Radeon RX 6700 XT vs Radeon RX 9060 XT 8 GB
Radeon RX 9060 XT 8 GB Performance118%
Radeon RX 9060 XT 8 GB is 18% faster than AMD Radeon RX 6700 XT
Compare Detailed Specs
AMD Radeon RX 6700 XT vs GeForce RTX 3070
GeForce RTX 3070 Performance116%
GeForce RTX 3070 is 16% faster than AMD Radeon RX 6700 XT
Compare Detailed Specs
AMD Radeon RX 6700 XT vs GeForce RTX 2080 Ti
GeForce RTX 2080 Ti Performance115%
GeForce RTX 2080 Ti is 15% faster than AMD Radeon RX 6700 XT
Compare Detailed Specs
AMD Radeon RX 6700 XT vs GeForce RTX 4060 Ti 8 GB
GeForce RTX 4060 Ti 8 GB Performance115%
GeForce RTX 4060 Ti 8 GB is 15% faster than AMD Radeon RX 6700 XT
Compare Detailed Specs
AMD Radeon RX 6700 XT vs GeForce RTX 5060
GeForce RTX 5060 Performance113%
GeForce RTX 5060 is 13% faster than AMD Radeon RX 6700 XT
Compare Detailed Specs
More Comparisons with AMD Radeon HD 7990
Compare AMD Radeon HD 7990 with other GPUs of similar performance
AMD Radeon HD 7990 vs Radeon RX 590
Radeon RX 590 Performance115%
Radeon RX 590 is 15% faster than AMD Radeon HD 7990
Compare Detailed Specs
AMD Radeon HD 7990 vs Radeon R9 FURY
Radeon R9 FURY Performance112%
Radeon R9 FURY is 12% faster than AMD Radeon HD 7990
Compare Detailed Specs
AMD Radeon HD 7990 vs GeForce GTX 980
GeForce GTX 980 Performance111%
GeForce GTX 980 is 11% faster than AMD Radeon HD 7990
Compare Detailed Specs
AMD Radeon HD 7990 vs GeForce GTX 1650 SUPER
GeForce GTX 1650 SUPER Performance110%
GeForce GTX 1650 SUPER is 10% faster than AMD Radeon HD 7990
Compare Detailed Specs
AMD Radeon HD 7990 vs Radeon RX 6500 XT
Radeon RX 6500 XT Performance109%
Radeon RX 6500 XT is 9% faster than AMD Radeon HD 7990
Compare Detailed Specs
AMD Radeon HD 7990 vs Radeon RX 5500 XT
Radeon RX 5500 XT Performance108%
Radeon RX 5500 XT is 8% faster than AMD Radeon HD 7990
Compare Detailed Specs