GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
NVIDIA GeForce GTX 660
72%
72%
AMD Radeon HD 7970 GHz Edition
156%
156%
AMD Radeon HD 7970 GHz Edition is approximately 84% faster
Technical Specifications
| Specification | NVIDIA GeForce GTX 660 | AMD Radeon HD 7970 GHz Edition |
|---|---|---|
| Graphics ProcessorDifferent | GK106 | Tahiti |
| CoresDifferent | 960 | 2048 |
| TMUsDifferent | 80 | 128 |
| ROPsDifferent | 24 | 32 |
| Memory SizeDifferent | 2 GB | 3 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 192 bit | 384 bit |
Graphics Processor
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 7970 GHz Edition |
|---|---|---|
| GPU NameDifferent | GK106 | Tahiti |
| GPU VariantDifferent | GK106-400-A1 | Tahiti XT2(215-0821065) |
| ArchitectureDifferent | Kepler | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| TransistorsDifferent | 2,540 million | 4,313 million |
| DensityDifferent | 11.5M / mm² | 12.3M / mm² |
| Die SizeDifferent | 221 mm² | 352 mm² |
| Chip PackageDifferent | BGA-1425 | N/A |
Graphics Card
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 7970 GHz Edition |
|---|---|---|
| Release DateDifferent | Sep 6th, 2012 | Jun 22nd, 2012 |
| GenerationDifferent | GeForce 600 | Southern Islands(HD 7900) |
| PredecessorDifferent | GeForce 500 | Northern Islands |
| SuccessorDifferent | GeForce 700 | Sea Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 229 USD | 499 USD |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 77 in our database | 191 in our database |
Clock Speeds
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 7970 GHz Edition |
|---|---|---|
| Base ClockDifferent | 980 MHz | 1000 MHz |
| Boost ClockDifferent | 1032 MHz | 1050 MHz |
| Memory ClockDifferent | 1502 MHz6 Gbps effective | 1500 MHz6 Gbps effective |
Memory
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 7970 GHz Edition |
|---|---|---|
| Memory SizeDifferent | 2 GB | 3 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 192 bit | 384 bit |
| BandwidthDifferent | 144.2 GB/s | 288.0 GB/s |
Render Config
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 7970 GHz Edition |
|---|---|---|
| Shading UnitsDifferent | 960 | 2048 |
| TMUsDifferent | 80 | 128 |
| ROPsDifferent | 24 | 32 |
| SMX CountDifferent | 5 | N/A |
| L1 CacheDifferent | 16 KB (per SMX) | 16 KB (per CU) |
| L2 CacheDifferent | 384 KB | 768 KB |
| Compute UnitsDifferent | N/A | 32 |
Theoretical Performance
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 7970 GHz Edition |
|---|---|---|
| Pixel RateDifferent | 20.64 GPixel/s | 33.60 GPixel/s |
| Texture RateDifferent | 82.56 GTexel/s | 134.4 GTexel/s |
| FP32 (float)Different | 1.981 TFLOPS | 4.301 TFLOPS |
| FP64 (double)Different | 82.56 GFLOPS (1:24) | 1,075.2 GFLOPS (1:4) |
Board Design
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 7970 GHz Edition |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 241 mm9.5 inches | 275 mm10.8 inches |
| TDPDifferent | 140 W | 300 W |
| Suggested PSUDifferent | 300 W | 700 W |
| OutputsDifferent | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 | 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | 1x 6-pin | 1x 6-pin + 1x 8-pin |
| Board NumberDifferent | P2030 SKU 0 | 109-C38637-00 |
| HeightDifferent | N/A | 111 mm4.4 inches |
| WidthDifferent | N/A | 38 mm1.5 inches |
Graphics Features
| Feature | NVIDIA GeForce GTX 660 | AMD Radeon HD 7970 GHz Edition |
|---|---|---|
| DirectXDifferent | 12 (11_0) | 12 (11_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCLDifferent | 3.0 | 2.1 (1.2) |
| VulkanDifferent | 1.2.175 | 1.2.170 |
| CUDADifferent | 3.0 | N/A |
| Shader Model | 6.5 (5.1) | 6.5 (5.1) |
Comparison Summary
7
Specifications Compared
8
Feature Categories
50
Detailed Features
More Comparisons with NVIDIA GeForce GTX 660
Compare NVIDIA GeForce GTX 660 with other GPUs of similar performance
NVIDIA GeForce GTX 660 vs Radeon HD 5970
Radeon HD 5970 Performance117%
Radeon HD 5970 is 17% faster than NVIDIA GeForce GTX 660
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NVIDIA GeForce GTX 660 vs GeForce GTX 1630
GeForce GTX 1630 Performance117%
GeForce GTX 1630 is 17% faster than NVIDIA GeForce GTX 660
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NVIDIA GeForce GTX 660 vs GeForce GTX 1050
GeForce GTX 1050 Performance115%
GeForce GTX 1050 is 15% faster than NVIDIA GeForce GTX 660
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NVIDIA GeForce GTX 660 vs GeForce GTX 760
GeForce GTX 760 Performance114%
GeForce GTX 760 is 14% faster than NVIDIA GeForce GTX 660
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NVIDIA GeForce GTX 660 vs GeForce GTX 580
GeForce GTX 580 Performance114%
GeForce GTX 580 is 14% faster than NVIDIA GeForce GTX 660
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NVIDIA GeForce GTX 660 vs GeForce GTX 660 Ti
GeForce GTX 660 Ti Performance113%
GeForce GTX 660 Ti is 13% faster than NVIDIA GeForce GTX 660
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More Comparisons with AMD Radeon HD 7970 GHz Edition
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AMD Radeon HD 7970 GHz Edition vs GeForce GTX 1650
GeForce GTX 1650 Performance115%
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AMD Radeon HD 7970 GHz Edition vs Radeon RX 6400
Radeon RX 6400 Performance112%
Radeon RX 6400 is 12% faster than AMD Radeon HD 7970 GHz Edition
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AMD Radeon HD 7970 GHz Edition vs Arc A380
Arc A380 Performance111%
Arc A380 is 11% faster than AMD Radeon HD 7970 GHz Edition
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AMD Radeon HD 7970 GHz Edition vs GeForce GTX 780
GeForce GTX 780 Performance111%
GeForce GTX 780 is 11% faster than AMD Radeon HD 7970 GHz Edition
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AMD Radeon HD 7970 GHz Edition vs Radeon HD 7970 GHz Edition
Radeon HD 7970 GHz Edition Performance100%
Radeon HD 7970 GHz Edition is 0% slower than AMD Radeon HD 7970 GHz Edition
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AMD Radeon HD 7970 GHz Edition vs GeForce GTX 590
GeForce GTX 590 Performance100%
GeForce GTX 590 is 0% slower than AMD Radeon HD 7970 GHz Edition
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