GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
NVIDIA GeForce RTX 4090
740%
740%
AMD Radeon HD 7990
14%
14%
NVIDIA GeForce RTX 4090 is approximately 726% faster
Technical Specifications
| Specification | NVIDIA GeForce RTX 4090 | AMD Radeon HD 7990 |
|---|---|---|
| Graphics ProcessorDifferent | AD102 | Malta x2 |
| CoresDifferent | 16384 | 2048 x2 |
| TMUsDifferent | 512 | 128 x2 |
| ROPsDifferent | 176 | 32 x2 |
| Memory SizeDifferent | 24 GB | 3 GB x2 |
| Memory TypeDifferent | GDDR6X | GDDR5 |
| Bus WidthDifferent | 384 bit | 384 bit x2 |
Graphics Processor
| Feature | NVIDIA GeForce RTX 4090 | AMD Radeon HD 7990 |
|---|---|---|
| GPU NameDifferent | AD102 | Malta |
| GPU VariantDifferent | AD102-300-A1 | Malta XT(215-0849026) |
| ArchitectureDifferent | Ada Lovelace | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 5 nm | 28 nm |
| TransistorsDifferent | 76,300 million | 4,313 million |
| DensityDifferent | 125.3M / mm² | 11.8M / mm² |
| Die SizeDifferent | 609 mm² | 365 mm² |
Graphics Card
| Feature | NVIDIA GeForce RTX 4090 | AMD Radeon HD 7990 |
|---|---|---|
| Release DateDifferent | Sep 20th, 2022 | Apr 24th, 2013 |
| AvailabilityDifferent | Oct 12th, 2022 | N/A |
| GenerationDifferent | GeForce 40 | Southern Islands(HD 7900) |
| PredecessorDifferent | GeForce 30 | Northern Islands |
| SuccessorDifferent | GeForce 50 | Sea Islands |
| ProductionDifferent | Active | End-of-life |
| Launch PriceDifferent | 1,599 USD | 999 USD |
| Current PriceDifferent | Amazon/Newegg | N/A |
| Bus InterfaceDifferent | PCIe 4.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 76 in our database | 37 in our database |
Clock Speeds
| Feature | NVIDIA GeForce RTX 4090 | AMD Radeon HD 7990 |
|---|---|---|
| Base ClockDifferent | 2235 MHz | 950 MHz |
| Boost ClockDifferent | 2520 MHz | 1000 MHz |
| Memory ClockDifferent | 1313 MHz21 Gbps effective | 1500 MHz6 Gbps effective |
Memory
| Feature | NVIDIA GeForce RTX 4090 | AMD Radeon HD 7990 |
|---|---|---|
| Memory SizeDifferent | 24 GB | 3 GB |
| Memory TypeDifferent | GDDR6X | GDDR5 |
| Memory Bus | 384 bit | 384 bit |
| BandwidthDifferent | 1.01 TB/s | 288.0 GB/s |
Render Config
| Feature | NVIDIA GeForce RTX 4090 | AMD Radeon HD 7990 |
|---|---|---|
| Shading UnitsDifferent | 16384 | 2048 |
| TMUsDifferent | 512 | 128 |
| ROPsDifferent | 176 | 32 |
| SM CountDifferent | 128 | N/A |
| Tensor CoresDifferent | 512 | N/A |
| RT CoresDifferent | 128 | N/A |
| L1 CacheDifferent | 128 KB (per SM) | 16 KB (per CU) |
| L2 CacheDifferent | 72 MB | 768 KB |
| Compute UnitsDifferent | N/A | 32 |
Theoretical Performance
| Feature | NVIDIA GeForce RTX 4090 | AMD Radeon HD 7990 |
|---|---|---|
| Pixel RateDifferent | 443.5 GPixel/s | 32.00 GPixel/s |
| Texture RateDifferent | 1,290.2 GTexel/s | 128.0 GTexel/s |
| FP16 (half)Different | 82.58 TFLOPS (1:1) | N/A |
| FP32 (float)Different | 82.58 TFLOPS | 4.096 TFLOPS |
| FP64 (double)Different | 1,290.2 GFLOPS (1:64) | 1,024.0 GFLOPS (1:4) |
Board Design
| Feature | NVIDIA GeForce RTX 4090 | AMD Radeon HD 7990 |
|---|---|---|
| Slot WidthDifferent | Triple-slot | Dual-slot |
| Length | 304 mm12 inches | 304 mm12 inches |
| HeightDifferent | 137 mm5.4 inches | 106 mm4.2 inches |
| WidthDifferent | 61 mm2.4 inches | 38 mm1.5 inches |
| TDPDifferent | 450 W | 375 W |
| Suggested PSUDifferent | 850 W | 750 W |
| OutputsDifferent | 1x HDMI 2.13x DisplayPort 1.4a | 1x DVI4x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | 1x 16-pin | 2x 8-pin |
| Board NumberDifferent | PG139 SKU 330 | 109-C47637-00A_02 |
Graphics Features
| Feature | NVIDIA GeForce RTX 4090 | AMD Radeon HD 7990 |
|---|---|---|
| DirectXDifferent | 12 Ultimate (12_2) | 12 (11_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCLDifferent | 3.0 | 2.1 (1.2) |
| VulkanDifferent | 1.3 | 1.2.175 |
| CUDADifferent | 8.9 | N/A |
| Shader ModelDifferent | 6.8 | 6.5 (5.1) |
Comparison Summary
7
Specifications Compared
8
Feature Categories
54
Detailed Features
More Comparisons with NVIDIA GeForce RTX 4090
Compare NVIDIA GeForce RTX 4090 with other GPUs of similar performance
NVIDIA GeForce RTX 4090 vs GeForce RTX 4090
GeForce RTX 4090 Performance100%
GeForce RTX 4090 is 0% slower than NVIDIA GeForce RTX 4090
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NVIDIA GeForce RTX 4090 vs GeForce RTX 5080
GeForce RTX 5080 Performance86%
GeForce RTX 5080 is 14% slower than NVIDIA GeForce RTX 4090
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NVIDIA GeForce RTX 4090 vs GeForce RTX 4090
GeForce RTX 4090 Performance100%
GeForce RTX 4090 is 0% slower than NVIDIA GeForce RTX 4090
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NVIDIA GeForce RTX 4090 vs GeForce RTX 4090
GeForce RTX 4090 Performance100%
GeForce RTX 4090 is 0% slower than NVIDIA GeForce RTX 4090
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
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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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