GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon RX 6750 XT
284%
284%
AMD Radeon HD 7990
35%
35%
AMD Radeon RX 6750 XT is approximately 249% faster
Technical Specifications
| Specification | AMD Radeon RX 6750 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 6750 XT | AMD Radeon HD 7990 |
|---|---|---|
| GPU NameDifferent | Navi 22 | Malta |
| GPU VariantDifferent | Navi 22 KXT(215-127000144) | 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 6750 XT | AMD Radeon HD 7990 |
|---|---|---|
| Release DateDifferent | Mar 3rd, 2022 | Apr 24th, 2013 |
| 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 | 549 USD | 999 USD |
| Bus InterfaceDifferent | PCIe 4.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 22 in our database | 37 in our database |
Clock Speeds
| Feature | AMD Radeon RX 6750 XT | AMD Radeon HD 7990 |
|---|---|---|
| Base ClockDifferent | 2150 MHz | 950 MHz |
| Game ClockDifferent | 2495 MHz | N/A |
| Boost ClockDifferent | 2600 MHz | 1000 MHz |
| Memory ClockDifferent | 2250 MHz18 Gbps effective | 1500 MHz6 Gbps effective |
Memory
| Feature | AMD Radeon RX 6750 XT | AMD Radeon HD 7990 |
|---|---|---|
| Memory SizeDifferent | 12 GB | 3 GB |
| Memory TypeDifferent | GDDR6 | GDDR5 |
| Memory BusDifferent | 192 bit | 384 bit |
| BandwidthDifferent | 432.0 GB/s | 288.0 GB/s |
Render Config
| Feature | AMD Radeon RX 6750 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 6750 XT | AMD Radeon HD 7990 |
|---|---|---|
| Pixel RateDifferent | 166.4 GPixel/s | 32.00 GPixel/s |
| Texture RateDifferent | 416.0 GTexel/s | 128.0 GTexel/s |
| FP16 (half)Different | 26.62 TFLOPS (2:1) | N/A |
| FP32 (float)Different | 13.31 TFLOPS | 4.096 TFLOPS |
| FP64 (double)Different | 832.0 GFLOPS (1:16) | 1,024.0 GFLOPS (1:4) |
Board Design
| Feature | AMD Radeon RX 6750 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 | 250 W | 375 W |
| Suggested PSUDifferent | 600 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 | D527 | 109-C47637-00A_02 |
Graphics Features
| Feature | AMD Radeon RX 6750 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
53
Detailed Features
More Comparisons with AMD Radeon RX 6750 XT
Compare AMD Radeon RX 6750 XT with other GPUs of similar performance
AMD Radeon RX 6750 XT vs GeForce RTX 5060 Ti 16 GB
GeForce RTX 5060 Ti 16 GB Performance119%
GeForce RTX 5060 Ti 16 GB is 19% faster than AMD Radeon RX 6750 XT
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AMD Radeon RX 6750 XT vs GeForce RTX 5060 Ti 8 GB
GeForce RTX 5060 Ti 8 GB Performance118%
GeForce RTX 5060 Ti 8 GB is 18% faster than AMD Radeon RX 6750 XT
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AMD Radeon RX 6750 XT vs Radeon RX 7700 XT
Radeon RX 7700 XT Performance117%
Radeon RX 7700 XT is 17% faster than AMD Radeon RX 6750 XT
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AMD Radeon RX 6750 XT vs Radeon RX 9060 XT 16 GB
Radeon RX 9060 XT 16 GB Performance113%
Radeon RX 9060 XT 16 GB is 13% faster than AMD Radeon RX 6750 XT
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AMD Radeon RX 6750 XT vs GeForce RTX 3070 Ti
GeForce RTX 3070 Ti Performance113%
GeForce RTX 3070 Ti is 13% faster than AMD Radeon RX 6750 XT
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AMD Radeon RX 6750 XT vs Radeon RX 6800
Radeon RX 6800 Performance109%
Radeon RX 6800 is 9% faster than AMD Radeon RX 6750 XT
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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
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AMD Radeon HD 7990 vs Radeon R9 FURY
Radeon R9 FURY Performance112%
Radeon R9 FURY is 12% faster than AMD Radeon HD 7990
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AMD Radeon HD 7990 vs GeForce GTX 980
GeForce GTX 980 Performance111%
GeForce GTX 980 is 11% faster than AMD Radeon HD 7990
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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
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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
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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
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