GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
AMD Radeon HD 6670
108%
108%
NVIDIA GeForce GT 640
93%
93%
AMD Radeon HD 6670 is approximately 15% faster
Technical Specifications
| Specification | AMD Radeon HD 6670 | NVIDIA GeForce GT 640 |
|---|---|---|
| Graphics ProcessorDifferent | Turks | GK107 |
| CoresDifferent | 480 | 384 |
| TMUsDifferent | 24 | 32 |
| ROPsDifferent | 8 | 16 |
| Memory SizeDifferent | 1024 MB | 2 GB |
| Memory TypeDifferent | GDDR5 | DDR3 |
| Bus Width | 128 bit | 128 bit |
Graphics Processor
| Feature | AMD Radeon HD 6670 | NVIDIA GeForce GT 640 |
|---|---|---|
| GPU NameDifferent | Turks | GK107 |
| GPU VariantDifferent | Turks XT(215-0803000) | GK107-300-A2 |
| ArchitectureDifferent | TeraScale 2 | Kepler |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 40 nm | 28 nm |
| TransistorsDifferent | 716 million | 1,270 million |
| DensityDifferent | 6.1M / mm² | 10.8M / mm² |
| Die Size | 118 mm² | 118 mm² |
| Chip PackageDifferent | FCBGA-962 | BGA-908 |
Graphics Card
| Feature | AMD Radeon HD 6670 | NVIDIA GeForce GT 640 |
|---|---|---|
| Release DateDifferent | Apr 19th, 2011 | Jun 5th, 2012 |
| GenerationDifferent | Northern Islands(HD 6600) | GeForce 600 |
| PredecessorDifferent | Evergreen | GeForce 500 |
| SuccessorDifferent | Southern Islands | GeForce 700 |
| Production | End-of-life | End-of-life |
| Launch Price | 99 USD | 99 USD |
| Bus InterfaceDifferent | PCIe 2.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 35 in our database | 8 in our database |
Clock Speeds
| Feature | AMD Radeon HD 6670 | NVIDIA GeForce GT 640 |
|---|---|---|
| GPU ClockDifferent | 800 MHz | 902 MHz |
| Memory ClockDifferent | 1000 MHz4 Gbps effective | 891 MHz1782 Mbps effective |
Memory
| Feature | AMD Radeon HD 6670 | NVIDIA GeForce GT 640 |
|---|---|---|
| Memory SizeDifferent | 1024 MB | 2 GB |
| Memory TypeDifferent | GDDR5 | DDR3 |
| Memory Bus | 128 bit | 128 bit |
| BandwidthDifferent | 64.00 GB/s | 28.51 GB/s |
Render Config
| Feature | AMD Radeon HD 6670 | NVIDIA GeForce GT 640 |
|---|---|---|
| Shading UnitsDifferent | 480 | 384 |
| TMUsDifferent | 24 | 32 |
| ROPsDifferent | 8 | 16 |
| Compute UnitsDifferent | 6 | N/A |
| L1 CacheDifferent | 8 KB (per CU) | 16 KB (per SMX) |
| L2 Cache | 256 KB | 256 KB |
| SMX CountDifferent | N/A | 2 |
Theoretical Performance
| Feature | AMD Radeon HD 6670 | NVIDIA GeForce GT 640 |
|---|---|---|
| Pixel RateDifferent | 6.400 GPixel/s | 7.216 GPixel/s |
| Texture RateDifferent | 19.20 GTexel/s | 28.86 GTexel/s |
| FP32 (float)Different | 768.0 GFLOPS | 692.7 GFLOPS |
| FP64 (double)Different | N/A | 28.86 GFLOPS (1:24) |
Board Design
| Feature | AMD Radeon HD 6670 | NVIDIA GeForce GT 640 |
|---|---|---|
| Slot Width | Single-slot | Single-slot |
| LengthDifferent | 168 mm6.6 inches | 145 mm5.7 inches |
| TDPDifferent | 66 W | 65 W |
| Suggested PSU | 250 W | 250 W |
| OutputsDifferent | 1x DVI1x HDMI 1.3a1x VGA | 1x DVI1x HDMI 1.4a1x DisplayPort 1.2 |
| Power Connectors | None | None |
| Board NumberDifferent | 109-C33437-00 | P2011 SKU 0 |
Graphics Features
| Feature | AMD Radeon HD 6670 | NVIDIA GeForce GT 640 |
|---|---|---|
| DirectXDifferent | 11.2 (11_0) | 12 (11_0) |
| OpenGLDifferent | 4.4 | 4.6 |
| OpenCLDifferent | 1.2 | 3.0 |
| VulkanDifferent | N/A | 1.2.175 |
| Shader ModelDifferent | 5.0 | 6.5 (5.1) |
| CUDADifferent | N/A | 3.0 |
Comparison Summary
7
Specifications Compared
8
Feature Categories
47
Detailed Features
More Comparisons with AMD Radeon HD 6670
Compare AMD Radeon HD 6670 with other GPUs of similar performance
AMD Radeon HD 6670 vs GeForce GTS 250
GeForce GTS 250 Performance119%
GeForce GTS 250 is 19% faster than AMD Radeon HD 6670
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AMD Radeon HD 6670 vs Radeon HD 4850
Radeon HD 4850 Performance116%
Radeon HD 4850 is 16% faster than AMD Radeon HD 6670
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AMD Radeon HD 6670 vs Radeon HD 4770
Radeon HD 4770 Performance110%
Radeon HD 4770 is 10% faster than AMD Radeon HD 6670
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AMD Radeon HD 6670 vs Radeon HD 4830
Radeon HD 4830 Performance103%
Radeon HD 4830 is 3% faster than AMD Radeon HD 6670
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AMD Radeon HD 6670 vs Radeon HD 6670
Radeon HD 6670 Performance100%
Radeon HD 6670 is 0% slower than AMD Radeon HD 6670
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AMD Radeon HD 6670 vs GeForce 9800 GT
GeForce 9800 GT Performance96%
GeForce 9800 GT is 4% slower than AMD Radeon HD 6670
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More Comparisons with NVIDIA GeForce GT 640
Compare NVIDIA GeForce GT 640 with other GPUs of similar performance
NVIDIA GeForce GT 640 vs Radeon HD 4770
Radeon HD 4770 Performance119%
Radeon HD 4770 is 19% faster than NVIDIA GeForce GT 640
Compare Detailed Specs
NVIDIA GeForce GT 640 vs Radeon HD 4830
Radeon HD 4830 Performance111%
Radeon HD 4830 is 11% faster than NVIDIA GeForce GT 640
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NVIDIA GeForce GT 640 vs Radeon HD 6670
Radeon HD 6670 Performance108%
Radeon HD 6670 is 8% faster than NVIDIA GeForce GT 640
Compare Detailed Specs
NVIDIA GeForce GT 640 vs GeForce 9800 GT
GeForce 9800 GT Performance103%
GeForce 9800 GT is 3% faster than NVIDIA GeForce GT 640
Compare Detailed Specs
NVIDIA GeForce GT 640 vs GeForce GT 640
GeForce GT 640 Performance100%
GeForce GT 640 is 0% slower than NVIDIA GeForce GT 640
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NVIDIA GeForce GT 640 vs Radeon HD 5670
Radeon HD 5670 Performance93%
Radeon HD 5670 is 7% slower than NVIDIA GeForce GT 640
Compare Detailed Specs