GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon R9 390X
263%
263%
AMD Radeon HD 6950
38%
38%
AMD Radeon R9 390X is approximately 225% faster
Technical Specifications
| Specification | AMD Radeon R9 390X | AMD Radeon HD 6950 |
|---|---|---|
| Graphics ProcessorDifferent | Grenada | Cayman |
| CoresDifferent | 2816 | 1408 |
| TMUsDifferent | 176 | 88 |
| ROPsDifferent | 64 | 32 |
| Memory SizeDifferent | 8 GB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 512 bit | 256 bit |
Graphics Processor
| Feature | AMD Radeon R9 390X | AMD Radeon HD 6950 |
|---|---|---|
| GPU NameDifferent | Grenada | Cayman |
| GPU VariantDifferent | Grenada XT(215-0880004) | Cayman PRO(215-0807019) |
| ArchitectureDifferent | GCN 2.0 | TeraScale 3 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 28 nm | 40 nm |
| TransistorsDifferent | 6,200 million | 2,640 million |
| DensityDifferent | 14.2M / mm² | 6.8M / mm² |
| Die SizeDifferent | 438 mm² | 389 mm² |
Graphics Card
| Feature | AMD Radeon R9 390X | AMD Radeon HD 6950 |
|---|---|---|
| Release DateDifferent | Jun 18th, 2015 | Dec 14th, 2010 |
| GenerationDifferent | Pirate Islands(R9 300) | Northern Islands(HD 6900) |
| PredecessorDifferent | Volcanic Islands | Evergreen |
| SuccessorDifferent | Arctic Islands | Southern Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 429 USD | 299 USD |
| Bus InterfaceDifferent | PCIe 3.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 60 in our database | 111 in our database |
Clock Speeds
| Feature | AMD Radeon R9 390X | AMD Radeon HD 6950 |
|---|---|---|
| GPU ClockDifferent | 1050 MHz | 800 MHz |
| Memory ClockDifferent | 1500 MHz6 Gbps effective | 1250 MHz5 Gbps effective |
Memory
| Feature | AMD Radeon R9 390X | AMD Radeon HD 6950 |
|---|---|---|
| Memory SizeDifferent | 8 GB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 512 bit | 256 bit |
| BandwidthDifferent | 384.0 GB/s | 160.0 GB/s |
Render Config
| Feature | AMD Radeon R9 390X | AMD Radeon HD 6950 |
|---|---|---|
| Shading UnitsDifferent | 2816 | 1408 |
| TMUsDifferent | 176 | 88 |
| ROPsDifferent | 64 | 32 |
| Compute UnitsDifferent | 44 | 22 |
| L1 CacheDifferent | 16 KB (per CU) | 8 KB (per CU) |
| L2 CacheDifferent | 1024 KB | 512 KB |
Theoretical Performance
| Feature | AMD Radeon R9 390X | AMD Radeon HD 6950 |
|---|---|---|
| Pixel RateDifferent | 67.20 GPixel/s | 25.60 GPixel/s |
| Texture RateDifferent | 184.8 GTexel/s | 70.40 GTexel/s |
| FP32 (float)Different | 5.914 TFLOPS | 2.253 TFLOPS |
| FP64 (double)Different | 739.2 GFLOPS (1:8) | 563.2 GFLOPS (1:4) |
Board Design
| Feature | AMD Radeon R9 390X | AMD Radeon HD 6950 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 275 mm10.8 inches | 286 mm11.3 inches |
| HeightDifferent | 109 mm4.3 inches | 126 mm5 inches |
| WidthDifferent | 36 mm1.4 inches | 42 mm1.7 inches |
| TDPDifferent | 275 W | 200 W |
| Suggested PSUDifferent | 600 W | 550 W |
| OutputsDifferent | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 | 2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | 1x 6-pin + 1x 8-pin | 2x 6-pin |
| Board NumberDifferent | 109-C67157-00_02, C679-37 | 109-C21647-00 |
Graphics Features
| Feature | AMD Radeon R9 390X | AMD Radeon HD 6950 |
|---|---|---|
| DirectXDifferent | 12 (12_0) | 11.2 (11_0) |
| OpenGLDifferent | 4.6 | 4.4 |
| OpenCLDifferent | 2.1 | 1.2 |
| VulkanDifferent | 1.2.170 | N/A |
| Shader ModelDifferent | 6.5 | 5.0 |
Comparison Summary
7
Specifications Compared
8
Feature Categories
46
Detailed Features
More Comparisons with AMD Radeon R9 390X
Compare AMD Radeon R9 390X with other GPUs of similar performance
AMD Radeon R9 390X vs Radeon R9 FURY X
Radeon R9 FURY X Performance120%
Radeon R9 FURY X is 20% faster than AMD Radeon R9 390X
Compare Detailed Specs
AMD Radeon R9 390X vs GeForce GTX 1660
GeForce GTX 1660 Performance119%
GeForce GTX 1660 is 19% faster than AMD Radeon R9 390X
Compare Detailed Specs
AMD Radeon R9 390X vs Radeon RX 590
Radeon RX 590 Performance112%
Radeon RX 590 is 12% faster than AMD Radeon R9 390X
Compare Detailed Specs
AMD Radeon R9 390X vs Radeon R9 FURY
Radeon R9 FURY Performance110%
Radeon R9 FURY is 10% faster than AMD Radeon R9 390X
Compare Detailed Specs
AMD Radeon R9 390X vs GeForce GTX 980
GeForce GTX 980 Performance108%
GeForce GTX 980 is 8% faster than AMD Radeon R9 390X
Compare Detailed Specs
AMD Radeon R9 390X vs GeForce GTX 1650 SUPER
GeForce GTX 1650 SUPER Performance107%
GeForce GTX 1650 SUPER is 7% faster than AMD Radeon R9 390X
Compare Detailed Specs
More Comparisons with AMD Radeon HD 6950
Compare AMD Radeon HD 6950 with other GPUs of similar performance
AMD Radeon HD 6950 vs Radeon RX 560
Radeon RX 560 Performance119%
Radeon RX 560 is 19% faster than AMD Radeon HD 6950
Compare Detailed Specs
AMD Radeon HD 6950 vs GeForce GTX 570
GeForce GTX 570 Performance117%
GeForce GTX 570 is 17% faster than AMD Radeon HD 6950
Compare Detailed Specs
AMD Radeon HD 6950 vs GeForce GTX 660
GeForce GTX 660 Performance117%
GeForce GTX 660 is 17% faster than AMD Radeon HD 6950
Compare Detailed Specs
AMD Radeon HD 6950 vs Radeon R7 370
Radeon R7 370 Performance116%
Radeon R7 370 is 16% faster than AMD Radeon HD 6950
Compare Detailed Specs
AMD Radeon HD 6950 vs Radeon HD 6970
Radeon HD 6970 Performance112%
Radeon HD 6970 is 12% faster than AMD Radeon HD 6950
Compare Detailed Specs
AMD Radeon HD 6950 vs GeForce GTX 480
GeForce GTX 480 Performance107%
GeForce GTX 480 is 7% faster than AMD Radeon HD 6950
Compare Detailed Specs