GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
NVIDIA GeForce GT 640
21%
21%
AMD Radeon R9 285
467%
467%
AMD Radeon R9 285 is approximately 446% faster
Technical Specifications
| Specification | NVIDIA GeForce GT 640 | AMD Radeon R9 285 |
|---|---|---|
| Graphics ProcessorDifferent | GK107 | Tonga |
| CoresDifferent | 384 | 1792 |
| TMUsDifferent | 32 | 112 |
| ROPsDifferent | 16 | 32 |
| Memory Size | 2 GB | 2 GB |
| Memory TypeDifferent | DDR3 | GDDR5 |
| Bus WidthDifferent | 128 bit | 256 bit |
Graphics Processor
| Feature | NVIDIA GeForce GT 640 | AMD Radeon R9 285 |
|---|---|---|
| GPU NameDifferent | GK107 | Tonga |
| GPU VariantDifferent | GK107-300-A2 | Tonga PRO(215-0851128) |
| ArchitectureDifferent | Kepler | GCN 3.0 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| TransistorsDifferent | 1,270 million | 5,000 million |
| DensityDifferent | 10.8M / mm² | 13.7M / mm² |
| Die SizeDifferent | 118 mm² | 366 mm² |
| Chip PackageDifferent | BGA-908 | N/A |
Graphics Card
| Feature | NVIDIA GeForce GT 640 | AMD Radeon R9 285 |
|---|---|---|
| Release DateDifferent | Jun 5th, 2012 | Sep 2nd, 2014 |
| GenerationDifferent | GeForce 600 | Volcanic Islands(R9 200) |
| PredecessorDifferent | GeForce 500 | Sea Islands |
| SuccessorDifferent | GeForce 700 | Pirate Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 99 USD | 249 USD |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| ReviewsDifferent | 8 in our database | 59 in our database |
Clock Speeds
| Feature | NVIDIA GeForce GT 640 | AMD Radeon R9 285 |
|---|---|---|
| GPU ClockDifferent | 902 MHz | 918 MHz |
| Memory ClockDifferent | 891 MHz1782 Mbps effective | 1375 MHz5.5 Gbps effective |
Memory
| Feature | NVIDIA GeForce GT 640 | AMD Radeon R9 285 |
|---|---|---|
| Memory Size | 2 GB | 2 GB |
| Memory TypeDifferent | DDR3 | GDDR5 |
| Memory BusDifferent | 128 bit | 256 bit |
| BandwidthDifferent | 28.51 GB/s | 176.0 GB/s |
Render Config
| Feature | NVIDIA GeForce GT 640 | AMD Radeon R9 285 |
|---|---|---|
| Shading UnitsDifferent | 384 | 1792 |
| TMUsDifferent | 32 | 112 |
| ROPsDifferent | 16 | 32 |
| SMX CountDifferent | 2 | N/A |
| L1 CacheDifferent | 16 KB (per SMX) | 16 KB (per CU) |
| L2 CacheDifferent | 256 KB | 512 KB |
| Compute UnitsDifferent | N/A | 28 |
Theoretical Performance
| Feature | NVIDIA GeForce GT 640 | AMD Radeon R9 285 |
|---|---|---|
| Pixel RateDifferent | 7.216 GPixel/s | 29.38 GPixel/s |
| Texture RateDifferent | 28.86 GTexel/s | 102.8 GTexel/s |
| FP32 (float)Different | 692.7 GFLOPS | 3.290 TFLOPS |
| FP64 (double)Different | 28.86 GFLOPS (1:24) | 205.6 GFLOPS (1:16) |
| FP16 (half)Different | N/A | 3.290 TFLOPS (1:1) |
Board Design
| Feature | NVIDIA GeForce GT 640 | AMD Radeon R9 285 |
|---|---|---|
| Slot WidthDifferent | Single-slot | Dual-slot |
| LengthDifferent | 145 mm5.7 inches | 221 mm8.7 inches |
| TDPDifferent | 65 W | 190 W |
| Suggested PSUDifferent | 250 W | 450 W |
| OutputsDifferent | 1x DVI1x HDMI 1.4a1x DisplayPort 1.2 | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 |
| Power ConnectorsDifferent | None | 2x 6-pin |
| Board NumberDifferent | P2011 SKU 0 | C766 |
| HeightDifferent | N/A | 109 mm4.3 inches |
| WidthDifferent | N/A | 36 mm1.4 inches |
Graphics Features
| Feature | NVIDIA GeForce GT 640 | AMD Radeon R9 285 |
|---|---|---|
| DirectXDifferent | 12 (11_0) | 12 (12_0) |
| OpenGL | 4.6 | 4.6 |
| OpenCLDifferent | 3.0 | 2.1 |
| VulkanDifferent | 1.2.175 | 1.2.170 |
| CUDADifferent | 3.0 | N/A |
| Shader ModelDifferent | 6.5 (5.1) | 6.5 |
Comparison Summary
7
Specifications Compared
8
Feature Categories
50
Detailed Features
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
Compare Detailed Specs
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
Compare Detailed Specs
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
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