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GPU Comparison
ATI Radeon HD 4770 vs AMD Radeon HD 6850
ATI Radeon HD 4770 vs AMD Radeon HD 6850
VS
ATI Radeon HD 4770
AMD Radeon HD 6850
We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4770 and 1024MB VRAM Radeon HD 6850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
ATI Radeon HD 4770 's Advantages
Lower TDP (80W vs 127W)
AMD Radeon HD 6850 's Advantages
Released 1 years and 6 months late
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (128.0GB/s vs 51.20GB/s)
320 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 4770
0.96 TFLOPS
Radeon HD 6850
+55%
1.488 TFLOPS
Radeon HD 4770
VS
Radeon HD 6850
Graphics Card
Apr 2009
Release Date
Oct 2010
Radeon R700
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
800 MHz
Memory Clock
1000 MHz
Memory
512MB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
256bit
51.20GB/s
Bandwidth
128.0GB/s
Render Config
-
SM Count
-
8
Compute Units
12
640
Shading Units
960
32
TMUs
48
16
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
8 KB (per CU)
128 KB
L2 Cache
512 KB
Theoretical Performance
12.00 GPixel/s
Pixel Rate
24.80 GPixel/s
24.00 GTexel/s
Texture Rate
37.20 GTexel/s
-
FP16 (half)
-
960.0 GFLOPS
FP32 (float)
1488 GFLOPS
192.0 GFLOPS
FP64 (double)
-
Graphics Processor
RV740
GPU Name
Barts
RV740 XT (215-0727019)
GPU Variant
Barts PRO (215-0798006)
TeraScale
Architecture
TeraScale 2
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
0.826 billion
Transistors
1.7 billion
137 mm²
Die Size
255 mm²
Board Design
80W
TDP
127W
250 W
Suggested PSU
300 W
2x DVI 1x S-Video
Outputs
2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1
1x 6-pin
Power Connectors
1x 6-pin
Graphics Features
10.1 (10_1)
DirectX
11.2 (11_0)
3.3
OpenGL
4.4
1.1
OpenCL
1.2
N/A
Vulkan
N/A
-
CUDA
-
4.1
Shader Model
5.0
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