Home GPU Comparison AMD Radeon HD 8470 OEM vs AMD Radeon HD 6790

AMD Radeon HD 8470 OEM vs AMD Radeon HD 6790

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 8470 OEM and 1024MB VRAM Radeon HD 6790 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8470 OEM 's Advantages
Released 1 years and 9 months late
Lower TDP (35W vs 150W)
AMD Radeon HD 6790 's Advantages
Larger VRAM bandwidth (134.4GB/s vs 25.60GB/s)
640 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 8470 OEM
0.248 TFLOPS
Radeon HD 6790 +441%
1.344 TFLOPS
VS

Graphics Card

Jan 2013
Release Date
Apr 2011
Sea Islands
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

-
-
-
-
-
-
800 MHz
Memory Clock
1050 MHz

Memory

1024MB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
64bit
Memory Bus
256bit
25.60GB/s
Bandwidth
134.4GB/s

Render Config

2
Compute Units
10
-
-
-
160
Shading Units
800
8
TMUs
40
4
ROPs
16
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
8 KB (per CU)
128 KB
L2 Cache
512 KB
-
-
-

Theoretical Performance

3.100 GPixel/s
Pixel Rate
13.44 GPixel/s
6.200 GTexel/s
Texture Rate
33.60 GTexel/s
-
-
-
248.0 GFLOPS
FP32 (float)
1344 GFLOPS
-
-
-

Board Design

35W
TDP
150W
200 W
Suggested PSU
450 W
1x DVI 1x HDMI 1.3a
Outputs
2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1
None
Power Connectors
2x 6-pin

Graphics Processor

Caicos
GPU Name
Barts
Caicos XT (215-0804070)
GPU Variant
Barts LE (215-0798002)
TeraScale 2
Architecture
TeraScale 2
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
0.37 billion
Transistors
1.7 billion
67 mm²
Die Size
255 mm²

Graphics Features

11.2 (11_0)
DirectX
11.2 (11_0)
4.4
OpenGL
4.4
1.2
OpenCL
1.2
N/A
Vulkan
N/A
-
-
-
5.0
Shader Model
5.0

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