GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon RX 6400
128%
128%
AMD Radeon R9 285
78%
78%
AMD Radeon RX 6400 is approximately 50% faster
Technical Specifications
| Specification | AMD Radeon RX 6400 | AMD Radeon R9 285 |
|---|---|---|
| Graphics ProcessorDifferent | Navi 24 | Tonga |
| CoresDifferent | 768 | 1792 |
| TMUsDifferent | 48 | 112 |
| ROPs | 32 | 32 |
| Memory SizeDifferent | 4 GB | 2 GB |
| Memory TypeDifferent | GDDR6 | GDDR5 |
| Bus WidthDifferent | 64 bit | 256 bit |
Graphics Processor
| Feature | AMD Radeon RX 6400 | AMD Radeon R9 285 |
|---|---|---|
| GPU NameDifferent | Navi 24 | Tonga |
| GPU VariantDifferent | Navi 24 XL(215-135000046) | Tonga PRO(215-0851128) |
| ArchitectureDifferent | RDNA 2.0 | GCN 3.0 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 6 nm | 28 nm |
| TransistorsDifferent | 5,400 million | 5,000 million |
| DensityDifferent | 50.5M / mm² | 13.7M / mm² |
| Die SizeDifferent | 107 mm² | 366 mm² |
Graphics Card
| Feature | AMD Radeon RX 6400 | AMD Radeon R9 285 |
|---|---|---|
| Release DateDifferent | Jan 19th, 2022 | Sep 2nd, 2014 |
| AvailabilityDifferent | Apr 20th, 2022 | N/A |
| GenerationDifferent | Navi II(RX 6000) | Volcanic Islands(R9 200) |
| PredecessorDifferent | Navi | Sea Islands |
| SuccessorDifferent | Navi III | Pirate Islands |
| ProductionDifferent | Active | End-of-life |
| Launch PriceDifferent | 159 USD | 249 USD |
| Bus InterfaceDifferent | PCIe 4.0 x4 | PCIe 3.0 x16 |
| ReviewsDifferent | N/A | 59 in our database |
Clock Speeds
| Feature | AMD Radeon RX 6400 | AMD Radeon R9 285 |
|---|---|---|
| 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 | 918 MHz |
Memory
| Feature | AMD Radeon RX 6400 | AMD Radeon R9 285 |
|---|---|---|
| Memory SizeDifferent | 4 GB | 2 GB |
| Memory TypeDifferent | GDDR6 | GDDR5 |
| Memory BusDifferent | 64 bit | 256 bit |
| BandwidthDifferent | 128.0 GB/s | 176.0 GB/s |
Render Config
| Feature | AMD Radeon RX 6400 | AMD Radeon R9 285 |
|---|---|---|
| Shading UnitsDifferent | 768 | 1792 |
| TMUsDifferent | 48 | 112 |
| ROPs | 32 | 32 |
| Compute UnitsDifferent | 12 | 28 |
| 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 | 512 KB |
| L3 CacheDifferent | 16 MB | N/A |
Theoretical Performance
| Feature | AMD Radeon RX 6400 | AMD Radeon R9 285 |
|---|---|---|
| Pixel RateDifferent | 74.27 GPixel/s | 29.38 GPixel/s |
| Texture RateDifferent | 111.4 GTexel/s | 102.8 GTexel/s |
| FP16 (half)Different | 7.130 TFLOPS (2:1) | 3.290 TFLOPS (1:1) |
| FP32 (float)Different | 3.565 TFLOPS | 3.290 TFLOPS |
| FP64 (double)Different | 222.8 GFLOPS (1:16) | 205.6 GFLOPS (1:16) |
Board Design
| Feature | AMD Radeon RX 6400 | AMD Radeon R9 285 |
|---|---|---|
| Slot WidthDifferent | Single-slot | Dual-slot |
| TDPDifferent | 53 W | 190 W |
| Suggested PSUDifferent | 250 W | 450 W |
| OutputsDifferent | 1x HDMI 2.11x DisplayPort 1.4a | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 |
| Power ConnectorsDifferent | None | 2x 6-pin |
| Board NumberDifferent | D634 | C766 |
| LengthDifferent | N/A | 221 mm8.7 inches |
| HeightDifferent | N/A | 109 mm4.3 inches |
| WidthDifferent | N/A | 36 mm1.4 inches |
Graphics Features
| Feature | AMD Radeon RX 6400 | AMD Radeon R9 285 |
|---|---|---|
| DirectXDifferent | 12 Ultimate (12_2) | 12 (12_0) |
| OpenGL | 4.6 | 4.6 |
| OpenCLDifferent | 2.2 | 2.1 |
| VulkanDifferent | 1.3 | 1.2.170 |
| Shader ModelDifferent | 6.8 | 6.5 |
Comparison Summary
7
Specifications Compared
8
Feature Categories
54
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
Compare Detailed Specs
AMD Radeon RX 6400 vs Radeon R9 390
Radeon R9 390 Performance117%
Radeon R9 390 is 17% faster than AMD Radeon RX 6400
Compare Detailed Specs
AMD Radeon RX 6400 vs Radeon RX 570
Radeon RX 570 Performance116%
Radeon RX 570 is 16% faster than AMD Radeon RX 6400
Compare Detailed Specs
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 R9 285
Compare AMD Radeon R9 285 with other GPUs of similar performance
AMD Radeon R9 285 vs Radeon HD 7970 GHz Edition
Radeon HD 7970 GHz Edition Performance114%
Radeon HD 7970 GHz Edition is 14% faster than AMD Radeon R9 285
Compare Detailed Specs
AMD Radeon R9 285 vs GeForce GTX 590
GeForce GTX 590 Performance114%
GeForce GTX 590 is 14% faster than AMD Radeon R9 285
Compare Detailed Specs
AMD Radeon R9 285 vs Radeon R9 280X
Radeon R9 280X Performance112%
Radeon R9 280X is 12% faster than AMD Radeon R9 285
Compare Detailed Specs
AMD Radeon R9 285 vs Radeon HD 6990
Radeon HD 6990 Performance110%
Radeon HD 6990 is 10% faster than AMD Radeon R9 285
Compare Detailed Specs
AMD Radeon R9 285 vs GeForce GTX 1050 Ti
GeForce GTX 1050 Ti Performance104%
GeForce GTX 1050 Ti is 4% faster than AMD Radeon R9 285
Compare Detailed Specs
AMD Radeon R9 285 vs GeForce GTX 680
GeForce GTX 680 Performance102%
GeForce GTX 680 is 2% faster than AMD Radeon R9 285
Compare Detailed Specs