GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
ATI Radeon HD 4770
41%
41%
AMD Radeon HD 6950
246%
246%
AMD Radeon HD 6950 is approximately 205% faster
Technical Specifications
| Specification | ATI Radeon HD 4770 | AMD Radeon HD 6950 |
|---|---|---|
| Graphics ProcessorDifferent | RV740 | Cayman |
| CoresDifferent | 640 | 1408 |
| TMUsDifferent | 32 | 88 |
| ROPsDifferent | 16 | 32 |
| Memory SizeDifferent | 512 MB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Bus WidthDifferent | 128 bit | 256 bit |
Graphics Processor
| Feature | ATI Radeon HD 4770 | AMD Radeon HD 6950 |
|---|---|---|
| GPU NameDifferent | RV740 | Cayman |
| GPU VariantDifferent | RV740 XT(215-0727019) | Cayman PRO(215-0807019) |
| ArchitectureDifferent | TeraScale | TeraScale 3 |
| Foundry | TSMC | TSMC |
| Process Size | 40 nm | 40 nm |
| TransistorsDifferent | 826 million | 2,640 million |
| DensityDifferent | 6.0M / mm² | 6.8M / mm² |
| Die SizeDifferent | 137 mm² | 389 mm² |
Graphics Card
| Feature | ATI Radeon HD 4770 | AMD Radeon HD 6950 |
|---|---|---|
| Release DateDifferent | Apr 28th, 2009 | Dec 14th, 2010 |
| GenerationDifferent | Radeon R700(HD 4700) | Northern Islands(HD 6900) |
| PredecessorDifferent | Radeon R600 | Evergreen |
| SuccessorDifferent | Evergreen | Southern Islands |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 109 USD | 299 USD |
| Bus Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 82 in our database | 111 in our database |
Clock Speeds
| Feature | ATI Radeon HD 4770 | AMD Radeon HD 6950 |
|---|---|---|
| GPU ClockDifferent | 750 MHz | 800 MHz |
| Memory ClockDifferent | 800 MHz3.2 Gbps effective | 1250 MHz5 Gbps effective |
Memory
| Feature | ATI Radeon HD 4770 | AMD Radeon HD 6950 |
|---|---|---|
| Memory SizeDifferent | 512 MB | 2 GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory BusDifferent | 128 bit | 256 bit |
| BandwidthDifferent | 51.20 GB/s | 160.0 GB/s |
Render Config
| Feature | ATI Radeon HD 4770 | AMD Radeon HD 6950 |
|---|---|---|
| Shading UnitsDifferent | 640 | 1408 |
| TMUsDifferent | 32 | 88 |
| ROPsDifferent | 16 | 32 |
| Compute UnitsDifferent | 8 | 22 |
| L1 CacheDifferent | 16 KB (per CU) | 8 KB (per CU) |
| L2 CacheDifferent | 128 KB | 512 KB |
Theoretical Performance
| Feature | ATI Radeon HD 4770 | AMD Radeon HD 6950 |
|---|---|---|
| Pixel RateDifferent | 12.00 GPixel/s | 25.60 GPixel/s |
| Texture RateDifferent | 24.00 GTexel/s | 70.40 GTexel/s |
| FP32 (float)Different | 960.0 GFLOPS | 2.253 TFLOPS |
| FP64 (double)Different | 192.0 GFLOPS (1:5) | 563.2 GFLOPS (1:4) |
Board Design
| Feature | ATI Radeon HD 4770 | AMD Radeon HD 6950 |
|---|---|---|
| Slot Width | Dual-slot | Dual-slot |
| LengthDifferent | 203 mm8 inches | 286 mm11.3 inches |
| TDPDifferent | 80 W | 200 W |
| Suggested PSUDifferent | 250 W | 550 W |
| OutputsDifferent | 2x DVI1x S-Video | 2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 |
| Power ConnectorsDifferent | 1x 6-pin | 2x 6-pin |
| Board NumberDifferent | B743 | 109-C21647-00 |
| HeightDifferent | N/A | 126 mm5 inches |
| WidthDifferent | N/A | 42 mm1.7 inches |
Graphics Features
| Feature | ATI Radeon HD 4770 | AMD Radeon HD 6950 |
|---|---|---|
| DirectXDifferent | 10.1 (10_1) | 11.2 (11_0) |
| OpenGLDifferent | 3.3 | 4.4 |
| OpenCLDifferent | 1.1 | 1.2 |
| Vulkan | N/A | N/A |
| Shader ModelDifferent | 4.1 | 5.0 |
Comparison Summary
7
Specifications Compared
8
Feature Categories
46
Detailed Features
More Comparisons with ATI Radeon HD 4770
Compare ATI Radeon HD 4770 with other GPUs of similar performance
ATI Radeon HD 4770 vs Radeon HD 5750
Radeon HD 5750 Performance115%
Radeon HD 5750 is 15% faster than ATI Radeon HD 4770
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ATI Radeon HD 4770 vs GeForce GTS 450
GeForce GTS 450 Performance111%
GeForce GTS 450 is 11% faster than ATI Radeon HD 4770
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ATI Radeon HD 4770 vs GeForce GTS 250
GeForce GTS 250 Performance108%
GeForce GTS 250 is 8% faster than ATI Radeon HD 4770
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ATI Radeon HD 4770 vs Radeon HD 4850
Radeon HD 4850 Performance105%
Radeon HD 4850 is 5% faster than ATI Radeon HD 4770
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ATI Radeon HD 4770 vs Radeon HD 4770
Radeon HD 4770 Performance100%
Radeon HD 4770 is 0% slower than ATI Radeon HD 4770
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ATI Radeon HD 4770 vs Radeon HD 4830
Radeon HD 4830 Performance94%
Radeon HD 4830 is 6% slower than ATI Radeon HD 4770
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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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