Radeon HD 8490 OEM vs Radeon HD 8770 OEM
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 8490 OEM and 1024MB VRAM Radeon HD 8770 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon HD 8490 OEM 's Advantages
Lower TDP (35W vs 85W)
Radeon HD 8770 OEM 's Advantages
Larger VRAM bandwidth (96.00GB/s vs 14.40GB/s)
736 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon HD 8490 OEM
280
Radeon HD 8770 OEM
+572%
1882
Graphics Card
Jul 2013
Release Date
Sep 2013
Sea Islands
Generation
Sea Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
900 MHz
Memory Clock
1500 MHz
Memory
1024MB
Memory Size
1024MB
DDR3
Memory Type
GDDR5
64bit
Memory Bus
128bit
14.40GB/s
Bandwidth
96.00GB/s
Render Config
2
Compute Units
14
160
Shading Units
896
8
TMUs
56
4
ROPs
16
8 KB (per CU)
L1 Cache
16 KB (per CU)
128 KB
L2 Cache
256 KB
Theoretical Performance
3.500 GPixel/s
Pixel Rate
16.80 GPixel/s
7.000 GTexel/s
Texture Rate
58.80 GTexel/s
280.0 GFLOPS
FP32 (float)
1.882 TFLOPS
-
FP64 (double)
117.6 GFLOPS
Board Design
35W
TDP
85W
200 W
Suggested PSU
250 W
1x DVI
1x DisplayPort 1.1
Outputs
1x DVI
1x HDMI 1.4a
2x mini-DisplayPort 1.2
None
Power Connectors
1x 6-pin
Graphics Processor
Caicos
GPU Name
Bonaire
Caicos XTX
GPU Variant
Bonaire XT
(215-0839039)
TeraScale 2
Architecture
GCN 2.0
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
0.37 billion
Transistors
2.08 billion
67 mm²
Die Size
160 mm²
Graphics Features
11.2 (11_0)
DirectX
12 (12_0)
4.4
OpenGL
4.6
1.2
OpenCL
2.0
N/A
Vulkan
1.2
5.0
Shader Model
6.3
