GPU Comparison
Side-by-side comparison of specifications and performance
Performance Comparison
ATI Radeon HD 4770
95%
95%
ATI Radeon HD 4850
105%
105%
ATI Radeon HD 4850 is approximately 10% faster
Technical Specifications
| Specification | ATI Radeon HD 4770 | ATI Radeon HD 4850 |
|---|---|---|
| Graphics ProcessorDifferent | RV740 | RV770 |
| CoresDifferent | 640 | 800 |
| TMUsDifferent | 32 | 40 |
| ROPs | 16 | 16 |
| Memory Size | 512 MB | 512 MB |
| Memory TypeDifferent | GDDR5 | GDDR3 |
| Bus WidthDifferent | 128 bit | 256 bit |
Graphics Processor
| Feature | ATI Radeon HD 4770 | ATI Radeon HD 4850 |
|---|---|---|
| GPU NameDifferent | RV740 | RV770 |
| GPU VariantDifferent | RV740 XT(215-0727019) | RV770 PRO(215-0669065) |
| Architecture | TeraScale | TeraScale |
| Foundry | TSMC | TSMC |
| Process SizeDifferent | 40 nm | 55 nm |
| TransistorsDifferent | 826 million | 956 million |
| DensityDifferent | 6.0M / mm² | 3.7M / mm² |
| Die SizeDifferent | 137 mm² | 256 mm² |
| Chip PackageDifferent | N/A | HFCBGA-1492 |
Graphics Card
| Feature | ATI Radeon HD 4770 | ATI Radeon HD 4850 |
|---|---|---|
| Release DateDifferent | Apr 28th, 2009 | Jun 25th, 2008 |
| GenerationDifferent | Radeon R700(HD 4700) | Radeon R700(HD 4800) |
| Predecessor | Radeon R600 | Radeon R600 |
| Successor | Evergreen | Evergreen |
| Production | End-of-life | End-of-life |
| Launch PriceDifferent | 109 USD | 199 USD |
| Bus Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| ReviewsDifferent | 82 in our database | 127 in our database |
Clock Speeds
| Feature | ATI Radeon HD 4770 | ATI Radeon HD 4850 |
|---|---|---|
| GPU ClockDifferent | 750 MHz | 625 MHz |
| Memory ClockDifferent | 800 MHz3.2 Gbps effective | 993 MHz1986 Mbps effective |
Memory
| Feature | ATI Radeon HD 4770 | ATI Radeon HD 4850 |
|---|---|---|
| Memory Size | 512 MB | 512 MB |
| Memory TypeDifferent | GDDR5 | GDDR3 |
| Memory BusDifferent | 128 bit | 256 bit |
| BandwidthDifferent | 51.20 GB/s | 63.55 GB/s |
Render Config
| Feature | ATI Radeon HD 4770 | ATI Radeon HD 4850 |
|---|---|---|
| Shading UnitsDifferent | 640 | 800 |
| TMUsDifferent | 32 | 40 |
| ROPs | 16 | 16 |
| Compute UnitsDifferent | 8 | 10 |
| L1 Cache | 16 KB (per CU) | 16 KB (per CU) |
| L2 CacheDifferent | 128 KB | 256 KB |
Theoretical Performance
| Feature | ATI Radeon HD 4770 | ATI Radeon HD 4850 |
|---|---|---|
| Pixel RateDifferent | 12.00 GPixel/s | 10.00 GPixel/s |
| Texture RateDifferent | 24.00 GTexel/s | 25.00 GTexel/s |
| FP32 (float)Different | 960.0 GFLOPS | 1,000.0 GFLOPS |
| FP64 (double)Different | 192.0 GFLOPS (1:5) | 200.0 GFLOPS (1:5) |
Board Design
| Feature | ATI Radeon HD 4770 | ATI Radeon HD 4850 |
|---|---|---|
| Slot WidthDifferent | Dual-slot | Single-slot |
| LengthDifferent | 203 mm8 inches | 246 mm9.7 inches |
| TDPDifferent | 80 W | 110 W |
| Suggested PSUDifferent | 250 W | 300 W |
| Outputs | 2x DVI1x S-Video | 2x DVI1x S-Video |
| Power Connectors | 1x 6-pin | 1x 6-pin |
| Board NumberDifferent | B743 | 109-B50131-00 |
Graphics Features
| Feature | ATI Radeon HD 4770 | ATI Radeon HD 4850 |
|---|---|---|
| DirectX | 10.1 (10_1) | 10.1 (10_1) |
| OpenGL | 3.3 | 3.3 |
| OpenCL | 1.1 | 1.1 |
| Vulkan | N/A | N/A |
| Shader Model | 4.1 | 4.1 |
Comparison Summary
7
Specifications Compared
8
Feature Categories
45
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
Compare Detailed Specs
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
Compare Detailed Specs
ATI Radeon HD 4770 vs Radeon HD 4770
Radeon HD 4770 Performance100%
Radeon HD 4770 is 0% slower than ATI Radeon HD 4770
Compare Detailed Specs
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 ATI Radeon HD 4850
Compare ATI Radeon HD 4850 with other GPUs of similar performance
ATI Radeon HD 4850 vs Radeon HD 5750
Radeon HD 5750 Performance109%
Radeon HD 5750 is 9% faster than ATI Radeon HD 4850
Compare Detailed Specs
ATI Radeon HD 4850 vs GeForce GTS 450
GeForce GTS 450 Performance105%
GeForce GTS 450 is 5% faster than ATI Radeon HD 4850
Compare Detailed Specs
ATI Radeon HD 4850 vs GeForce GTS 250
GeForce GTS 250 Performance102%
GeForce GTS 250 is 2% faster than ATI Radeon HD 4850
Compare Detailed Specs
ATI Radeon HD 4850 vs Radeon HD 4850
Radeon HD 4850 Performance100%
Radeon HD 4850 is 0% slower than ATI Radeon HD 4850
Compare Detailed Specs
ATI Radeon HD 4850 vs Radeon HD 4770
Radeon HD 4770 Performance95%
Radeon HD 4770 is 5% slower than ATI Radeon HD 4850
Compare Detailed Specs
ATI Radeon HD 4850 vs Radeon HD 4830
Radeon HD 4830 Performance89%
Radeon HD 4830 is 11% slower than ATI Radeon HD 4850
Compare Detailed Specs