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GPU Comparison
ATI Radeon HD 4770 vs ATI Radeon HD 3870
ATI Radeon HD 4770 vs ATI Radeon HD 3870
VS
ATI Radeon HD 4770
ATI Radeon HD 3870
We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4770 and 512MB VRAM Radeon HD 3870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
ATI Radeon HD 4770 's Advantages
Released 1 years and 5 months late
320 additional rendering cores
Lower TDP (80W vs 106W)
ATI Radeon HD 3870 's Advantages
Larger VRAM bandwidth (72.06GB/s vs 51.20GB/s)
Score
Benchmark
FP32 (float)
Radeon HD 4770
+93%
0.96 TFLOPS
Radeon HD 3870
0.497 TFLOPS
Radeon HD 4770
VS
Radeon HD 3870
Graphics Card
Apr 2009
Release Date
Nov 2007
Radeon R700
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
800 MHz
Memory Clock
1126 MHz
Memory
512MB
Memory Size
512MB
GDDR5
Memory Type
GDDR4
128bit
Memory Bus
256bit
51.20GB/s
Bandwidth
72.06GB/s
Render Config
-
SM Count
-
8
Compute Units
4
640
Shading Units
320
32
TMUs
16
16
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
-
128 KB
L2 Cache
256 KB
Theoretical Performance
12.00 GPixel/s
Pixel Rate
12.43 GPixel/s
24.00 GTexel/s
Texture Rate
12.43 GTexel/s
-
FP16 (half)
-
960.0 GFLOPS
FP32 (float)
497.3 GFLOPS
192.0 GFLOPS
FP64 (double)
99.46 GFLOPS
Graphics Processor
RV740
GPU Name
RV670
RV740 XT (215-0727019)
GPU Variant
RV670 XT (215-0708005)
TeraScale
Architecture
TeraScale
TSMC
Foundry
TSMC
40 nm
Process Size
55 nm
0.826 billion
Transistors
0.666 billion
137 mm²
Die Size
192 mm²
Board Design
80W
TDP
106W
250 W
Suggested PSU
300 W
2x DVI 1x S-Video
Outputs
2x DVI 1x S-Video
1x 6-pin
Power Connectors
1x 6-pin
Graphics Features
10.1 (10_1)
DirectX
10.1 (10_1)
3.3
OpenGL
3.3 (full) 4.0 (partial)
1.1
OpenCL
N/A
N/A
Vulkan
N/A
-
CUDA
-
4.1
Shader Model
4.1
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