GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon RX 6400
127%
127%
AMD Radeon HD 7970
89%
89%
AMD Radeon RX 6400 is approximately 38% faster
Technical Specifications
| Specification | AMD Radeon RX 6400 | AMD Radeon HD 7970 |
|---|---|---|
| Graphics ProcessorDifferent | Navi 24 | Tahiti |
| CoresDifferent | 768 | 2048 |
| TMUsDifferent | 48 | 128 |
| ROPs | 32 | 32 |
| Memory SizeDifferent | 4 GB | 3 GB |
| Memory TypeDifferent | GDDR6 | GDDR5 |
| Bus WidthDifferent | 64 bit | 384 bit |
Graphics Processor
| Feature | AMD Radeon RX 6400 | AMD Radeon HD 7970 |
|---|---|---|
| GPU NameDifferent | Navi 24 | Tahiti |
| GPU VariantDifferent | Navi 24 XL(215-135000046) | Tahiti XT(215-0821060) |
| ArchitectureDifferent | RDNA 2.0 | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 6 nm | 28 nm |
| TransistorsDifferent | 5,400 million | 4,313 million |
| DensityDifferent | 50.5M / mm² | 12.3M / mm² |
| Die SizeDifferent | 107 mm² | 352 mm² |
Graphics Card
| Feature | AMD Radeon RX 6400 | AMD Radeon HD 7970 |
|---|---|---|
| Release DateDifferent | Jan 19th, 2022 | Jan 9th, 2012 |
| AvailabilityDifferent | Apr 20th, 2022 | 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 | 159 USD | 549 USD |
| Bus InterfaceDifferent | PCIe 4.0 x4 | PCIe 3.0 x16 |
| AnnouncedDifferent | N/A | Dec 22nd, 2011 |
| ReviewsDifferent | N/A | 191 in our database |
Clock Speeds
| Feature | AMD Radeon RX 6400 | AMD Radeon HD 7970 |
|---|---|---|
| Base ClockDifferent | 1923 MHz | N/A |
| Game ClockDifferent | 2039 MHz | N/A |
| Boost ClockDifferent | 2321 MHz | N/A |
| Memory ClockDifferent | 2000 MHz16 Gbps effective | 1375 MHz5.5 Gbps effective |
| GPU ClockDifferent | N/A | 925 MHz |
Memory
| Feature | AMD Radeon RX 6400 | AMD Radeon HD 7970 |
|---|---|---|
| Memory SizeDifferent | 4 GB | 3 GB |
| Memory TypeDifferent | GDDR6 | GDDR5 |
| Memory BusDifferent | 64 bit | 384 bit |
| BandwidthDifferent | 128.0 GB/s | 264.0 GB/s |
Render Config
| Feature | AMD Radeon RX 6400 | AMD Radeon HD 7970 |
|---|---|---|
| Shading UnitsDifferent | 768 | 2048 |
| TMUsDifferent | 48 | 128 |
| ROPs | 32 | 32 |
| Compute UnitsDifferent | 12 | 32 |
| RT CoresDifferent | 12 | N/A |
| L0 CacheDifferent | 32 KB per WGP | N/A |
| L1 CacheDifferent | 128 KB per Array | 16 KB (per CU) |
| L2 CacheDifferent | 1024 KB | 768 KB |
| L3 CacheDifferent | 16 MB | N/A |
Theoretical Performance
| Feature | AMD Radeon RX 6400 | AMD Radeon HD 7970 |
|---|---|---|
| Pixel RateDifferent | 74.27 GPixel/s | 29.60 GPixel/s |
| Texture RateDifferent | 111.4 GTexel/s | 118.4 GTexel/s |
| FP16 (half)Different | 7.130 TFLOPS (2:1) | N/A |
| FP32 (float)Different | 3.565 TFLOPS | 3.789 TFLOPS |
| FP64 (double)Different | 222.8 GFLOPS (1:16) | 947.2 GFLOPS (1:4) |
Board Design
| Feature | AMD Radeon RX 6400 | AMD Radeon HD 7970 |
|---|---|---|
| Slot WidthDifferent | Single-slot | Dual-slot |
| TDPDifferent | 53 W | 250 W |
| Suggested PSUDifferent | 250 W | 600 W |
| OutputsDifferent | 1x HDMI 2.11x DisplayPort 1.4a | 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | None | 1x 6-pin + 1x 8-pin |
| Board NumberDifferent | D634 | 109-C38637-00 |
| LengthDifferent | N/A | 275 mm10.8 inches |
| HeightDifferent | N/A | 111 mm4.4 inches |
| WidthDifferent | N/A | 38 mm1.5 inches |
Graphics Features
| Feature | AMD Radeon RX 6400 | AMD Radeon HD 7970 |
|---|---|---|
| DirectXDifferent | 12 Ultimate (12_2) | 12 (11_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCLDifferent | 2.2 | 2.1 (1.2) |
| VulkanDifferent | 1.3 | 1.2.170 |
| 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 6400
Compare AMD Radeon RX 6400 with other GPUs of similar performance
AMD Radeon RX 6400 vs GeForce GTX 970
GeForce GTX 970 Performance119%
GeForce GTX 970 is 19% faster than AMD Radeon RX 6400
Compare Detailed Specs
AMD Radeon RX 6400 vs Radeon R9 290X
Radeon R9 290X Performance119%
Radeon R9 290X is 19% faster than AMD Radeon RX 6400
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AMD Radeon RX 6400 vs Radeon R9 390
Radeon R9 390 Performance117%
Radeon R9 390 is 17% faster than AMD Radeon RX 6400
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AMD Radeon RX 6400 vs Radeon RX 570
Radeon RX 570 Performance116%
Radeon RX 570 is 16% faster than AMD Radeon RX 6400
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AMD Radeon RX 6400 vs Radeon R9 290
Radeon R9 290 Performance110%
Radeon R9 290 is 10% faster than AMD Radeon RX 6400
Compare Detailed Specs
AMD Radeon RX 6400 vs Radeon RX 470
Radeon RX 470 Performance108%
Radeon RX 470 is 8% faster than AMD Radeon RX 6400
Compare Detailed Specs
More Comparisons with AMD Radeon HD 7970
Compare AMD Radeon HD 7970 with other GPUs of similar performance
AMD Radeon HD 7970 vs Radeon HD 7970 GHz Edition
Radeon HD 7970 GHz Edition Performance113%
Radeon HD 7970 GHz Edition is 13% faster than AMD Radeon HD 7970
Compare Detailed Specs
AMD Radeon HD 7970 vs GeForce GTX 590
GeForce GTX 590 Performance113%
GeForce GTX 590 is 13% faster than AMD Radeon HD 7970
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AMD Radeon HD 7970 vs Radeon R9 280X
Radeon R9 280X Performance111%
Radeon R9 280X is 11% faster than AMD Radeon HD 7970
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AMD Radeon HD 7970 vs Radeon HD 6990
Radeon HD 6990 Performance109%
Radeon HD 6990 is 9% faster than AMD Radeon HD 7970
Compare Detailed Specs
AMD Radeon HD 7970 vs GeForce GTX 1050 Ti
GeForce GTX 1050 Ti Performance103%
GeForce GTX 1050 Ti is 3% faster than AMD Radeon HD 7970
Compare Detailed Specs
AMD Radeon HD 7970 vs GeForce GTX 680
GeForce GTX 680 Performance101%
GeForce GTX 680 is 1% faster than AMD Radeon HD 7970
Compare Detailed Specs