GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
NVIDIA GeForce GTX 660 Ti
340%
340%
AMD Radeon HD 6950
76%
76%
NVIDIA GeForce GTX 660 Ti is approximately 264% faster
Technical Specifications
| Specification | NVIDIA GeForce GTX 660 Ti | AMD Radeon HD 6950 |
|---|---|---|
| Graphics ProcessorDifferent | GK104 | Cayman |
| CoresDifferent | 1344 | 1408 |
| TMUsDifferent | 112 | 88 |
| ROPsDifferent | 24 | 32 |
| Memory Size | 2 GB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 192 bit | 256 bit |
Graphics Processor
| Feature | NVIDIA GeForce GTX 660 Ti | AMD Radeon HD 6950 |
|---|---|---|
| GPU NameDifferent | GK104 | Cayman |
| GPU VariantDifferent | GK104-300-KD-A2 | Cayman PRO(215-0807019) |
| ArchitectureDifferent | Kepler | TeraScale 3 |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 28 nm | 40 nm |
| TransistorsDifferent | 3,540 million | 2,640 million |
| DensityDifferent | 12.0M / mm² | 6.8M / mm² |
| Die SizeDifferent | 294 mm² | 389 mm² |
| Chip PackageDifferent | BGA-1745 | N/A |
Graphics Card
| Feature | NVIDIA GeForce GTX 660 Ti | AMD Radeon HD 6950 |
|---|---|---|
| Release DateDifferent | Aug 16th, 2012 | Dec 14th, 2010 |
| GenerationDifferent | GeForce 600 | Northern Islands(HD 6900) |
| PredecessorDifferent | GeForce 500 | Evergreen |
| SuccessorDifferent | GeForce 700 | Southern Islands |
| Production | End-of-life | End-of-life |
| Launch Price | 299 USD | 299 USD |
| Bus InterfaceDifferent | PCIe 3.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 83 in our database | 111 in our database |
Clock Speeds
| Feature | NVIDIA GeForce GTX 660 Ti | AMD Radeon HD 6950 |
|---|---|---|
| Base ClockDifferent | 915 MHz | N/A |
| Boost ClockDifferent | 980 MHz | N/A |
| Memory ClockDifferent | 1502 MHz6 Gbps effective | 1250 MHz5 Gbps effective |
| GPU ClockDifferent | N/A | 800 MHz |
Memory
| Feature | NVIDIA GeForce GTX 660 Ti | AMD Radeon HD 6950 |
|---|---|---|
| Memory Size | 2 GB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 192 bit | 256 bit |
| BandwidthDifferent | 144.2 GB/s | 160.0 GB/s |
Render Config
| Feature | NVIDIA GeForce GTX 660 Ti | AMD Radeon HD 6950 |
|---|---|---|
| Shading UnitsDifferent | 1344 | 1408 |
| TMUsDifferent | 112 | 88 |
| ROPsDifferent | 24 | 32 |
| SMX CountDifferent | 7 | N/A |
| L1 CacheDifferent | 16 KB (per SMX) | 8 KB (per CU) |
| L2 CacheDifferent | 384 KB | 512 KB |
| Compute UnitsDifferent | N/A | 22 |
Theoretical Performance
| Feature | NVIDIA GeForce GTX 660 Ti | AMD Radeon HD 6950 |
|---|---|---|
| Pixel RateDifferent | 27.44 GPixel/s | 25.60 GPixel/s |
| Texture RateDifferent | 109.8 GTexel/s | 70.40 GTexel/s |
| FP32 (float)Different | 2.634 TFLOPS | 2.253 TFLOPS |
| FP64 (double)Different | 109.8 GFLOPS (1:24) | 563.2 GFLOPS (1:4) |
Board Design
| Feature | NVIDIA GeForce GTX 660 Ti | AMD Radeon HD 6950 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 241 mm9.5 inches | 286 mm11.3 inches |
| TDPDifferent | 150 W | 200 W |
| Suggested PSUDifferent | 450 W | 550 W |
| OutputsDifferent | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 | 2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 |
| Power Connectors | 2x 6-pin | 2x 6-pin |
| Board NumberDifferent | P2004 SKU 1 | 109-C21647-00 |
| HeightDifferent | N/A | 126 mm5 inches |
| WidthDifferent | N/A | 42 mm1.7 inches |
Graphics Features
| Feature | NVIDIA GeForce GTX 660 Ti | AMD Radeon HD 6950 |
|---|---|---|
| DirectXDifferent | 12 (11_0) | 11.2 (11_0) |
| OpenGLDifferent | 4.6 | 4.4 |
| OpenCLDifferent | 3.0 | 1.2 |
| VulkanDifferent | 1.2.175 | N/A |
| CUDADifferent | 3.0 | N/A |
| Shader ModelDifferent | 6.5 (5.1) | 5.0 |
Comparison Summary
7
Specifications Compared
8
Feature Categories
51
Detailed Features
More Comparisons with NVIDIA GeForce GTX 660 Ti
Compare NVIDIA GeForce GTX 660 Ti with other GPUs of similar performance
NVIDIA GeForce GTX 660 Ti vs GeForce GTX 960
GeForce GTX 960 Performance117%
GeForce GTX 960 is 17% faster than NVIDIA GeForce GTX 660 Ti
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NVIDIA GeForce GTX 660 Ti vs GeForce GTX 670
GeForce GTX 670 Performance114%
GeForce GTX 670 is 14% faster than NVIDIA GeForce GTX 660 Ti
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NVIDIA GeForce GTX 660 Ti vs Radeon HD 5970
Radeon HD 5970 Performance103%
Radeon HD 5970 is 3% faster than NVIDIA GeForce GTX 660 Ti
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NVIDIA GeForce GTX 660 Ti vs GeForce GTX 1630
GeForce GTX 1630 Performance103%
GeForce GTX 1630 is 3% faster than NVIDIA GeForce GTX 660 Ti
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NVIDIA GeForce GTX 660 Ti vs GeForce GTX 1050
GeForce GTX 1050 Performance101%
GeForce GTX 1050 is 1% faster than NVIDIA GeForce GTX 660 Ti
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NVIDIA GeForce GTX 660 Ti vs GeForce GTX 760
GeForce GTX 760 Performance101%
GeForce GTX 760 is 1% faster than NVIDIA GeForce GTX 660 Ti
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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
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AMD Radeon HD 6950 vs GeForce GTX 570
GeForce GTX 570 Performance117%
GeForce GTX 570 is 17% faster than AMD Radeon HD 6950
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AMD Radeon HD 6950 vs GeForce GTX 660
GeForce GTX 660 Performance117%
GeForce GTX 660 is 17% faster than AMD Radeon HD 6950
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AMD Radeon HD 6950 vs Radeon R7 370
Radeon R7 370 Performance116%
Radeon R7 370 is 16% faster than AMD Radeon HD 6950
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AMD Radeon HD 6950 vs Radeon HD 6970
Radeon HD 6970 Performance112%
Radeon HD 6970 is 12% faster than AMD Radeon HD 6950
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AMD Radeon HD 6950 vs GeForce GTX 480
GeForce GTX 480 Performance107%
GeForce GTX 480 is 7% faster than AMD Radeon HD 6950
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